Transparent Reporting of a multivariable prediction model for Individual Prognosis Or Diagnosis (TRIPOD): Explanation and Elaboration. Translation in to Russian

Cover Image
  • Authors: Moons K.G.1, Altman D.G.2, Reitsma J.B.1, Loannidis J.P.3, Macaskill P.4, Steyerberg E.W.5, Vickers A.J.6, Ransohoff D.F.7, Collins G.S.2
  • Affiliations:
    1. Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht
    2. Centre for Statistics in Medicine, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, Botnar Research Centre, University of Oxford
    3. Stanford Prevention Research Center, School of Medicine, Stanford University
    4. Screening & Test Evaluation Program (STEP), School of Public Health, Edward Ford Building (A27), Sydney Medical School, University of Sydney
    5. Department of Public Health, Erasmus MC-University Medical Center Rotterdam
    6. Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center
    7. Departments of Medicine and Epidemiology, University of North Carolina at Chapel Hill, 4103 Bioinformatics, CB 7080
  • Issue: Vol 3, No 3 (2022)
  • Pages: 232-322
  • Section: Reviews
  • URL: https://journals.rcsi.science/DD/article/view/110794
  • DOI: https://doi.org/10.17816/DD110794
  • ID: 110794

Cite item

Full Text

Abstract

The TRIPOD (Transparent Reporting of a multivariable prediction model for Individual Prognosis Or Diagnosis) Statement includes a 22-item checklist, which aims to improve the reporting of studies developing, validating, or updating a prediction model, whether for diagnostic or prognostic purposes. The TRIPOD Statement aims to improve the transparency of the reporting of a prediction model study regardless of the study methods used. This explanation and elaboration document describes the rationale; clarifies the meaning of each item; and discusses why transparent reporting is important, with a view to assessing risk of bias and clinical usefulness of the prediction model. Each checklist item of the TRIPOD Statement is explained in detail and accompanied by published examples of good reporting. The document also provides a valuable reference of issues to consider when designing, conducting, and analyzing prediction model studies. To aid the editorial process and help peer reviewers and, ultimately, readers and systematic reviewers of prediction model studies, it is recommended that authors include a completed checklist in their submission. The TRIPOD checklist can also be downloaded from www.tripod-statement.org.

For members of the TRIPOD Group, see the Appendix.

This article is the translation in to Russian by Dr. Ruslan Saygitov (ORCID: 0000-0002-8915-6153) from the original published in [Ann Intern Med. 2015; 162:W1-W73. doi: 10.7326/M14-0698 ].

About the authors

Karel G.M. Moons

Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht

Email: K.G.M.Moons@umcutrecht.nl
ORCID iD: 0000-0003-2118-004X

PhD

Netherlands, PO Box 85500, 3508 GA Utrecht

Douglas G. Altman

Centre for Statistics in Medicine, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, Botnar Research Centre, University of Oxford

Email: K.G.M.Moons@umcutrecht.nl
ORCID iD: 0000-0002-7183-4083

DSc

United Kingdom, Oxford OX3 7LD

Johannes B. Reitsma

Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht

Email: K.G.M.Moons@umcutrecht.nl
ORCID iD: 0000-0003-4026-4345

MD, PhD

Netherlands, PO Box 85500, 3508 GA Utrecht

John P.A. Loannidis

Stanford Prevention Research Center, School of Medicine, Stanford University

Email: jioannid@stanford.edu
ORCID iD: 0000-0003-3118-6859

MD, DSc

United States, 291 Campus Drive, Room LK3C02, Li Ka Shing Building, 3rd Floor, Stanford, CA 943055101

Petra Macaskill

Screening & Test Evaluation Program (STEP), School of Public Health, Edward Ford Building (A27), Sydney Medical School, University of Sydney

Email: petra.macaskill@sydney.edu.aug
ORCID iD: 0000-0001-5879-6193

PhD

Australia, Sydney, NSW 2006

Ewout W. Steyerberg

Department of Public Health, Erasmus MC-University Medical Center Rotterdam

Email: e.w.steyerberg@lumc.nl
ORCID iD: 0000-0002-7787-0122

PhD

Netherlands, PO Box 2040, 3000 CA, Rotterdam

Andrew J. Vickers

Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center

Email: vickersa@mskcc.org
ORCID iD: 0000-0003-1525-6503

PhD

United States, 307 East 63rd Street, 2nd Floor, Box 44, New York, NY 10065

David F. Ransohoff

Departments of Medicine and Epidemiology, University of North Carolina at Chapel Hill, 4103 Bioinformatics, CB 7080

Email: ransohof@med.unc.edu
ORCID iD: 0000-0002-2200-039X

MD

United States, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-7080

Gary S. Collins

Centre for Statistics in Medicine, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, Botnar Research Centre, University of Oxford

Author for correspondence.
Email: gary.collins@csm.ox.ac.uk
ORCID iD: 0000-0002-2772-2316

PhD

United Kingdom, Oxford OX3 7LD

References

  1. Moons KG, Royston P, Vergouwe Y, Grobbee DE, Altman DG. Prognosis and prognostic research: what, why, and how? BMJ. 2009;338:b375.
  2. Steyerberg EW. Clinical Prediction Models: A Practical Approach to Development, Validation, and Updating. New York: Springer; 2009.
  3. Wasson JH, Sox HC, Neff RK, Goldman L. Clinical prediction rules. Applications and methodological standards. N Engl J Med. 1985;313:793-9.
  4. Dorresteijn JA, Visseren FL, Ridker PM, Wassink AM, Paynter NP, Steyerberg EW, et al. Estimating treatment effects for individual patients based on the results of randomised clinical trials. BMJ. 2011;343:d5888.
  5. Hayward RA, Kent DM, Vijan S, Hofer TP. Multivariable risk prediction can greatly enhance the statistical power of clinical trial subgroup analysis. BMC Med Res Methodol. 2006;6:18.
  6. Kattan MW, Vickers AJ. Incorporating predictions of individual patient risk in clinical trials. Urol Oncol. 2004;22:348-52.
  7. Kent DM, Hayward RA. Limitations of applying summary results of clinical trials to individual patients: the need for risk stratification. JAMA. 2007;298:1209-12.
  8. Riley RD, Hayden JA, Steyerberg EW, Moons KG, Abrams K, Kyzas PA, et al; PROGRESS Group. Prognosis Research Strategy (PROGRESS) 2: prognostic factor research. PLoS Med. 2013;10:e1001380.
  9. Steyerberg EW, Moons KG, van der Windt DA, Hayden JA, Perel P, Schroter S, et al; PROGRESS Group. Prognosis Research Strategy (PROGRESS) 3: prognostic model research. PLoS Med. 2013;10:e1001381.
  10. Royston P, Moons KG, Altman DG, Vergouwe Y. Prognosis and prognostic research: developing a prognostic model. BMJ. 2009;338:b604.
  11. Collins GS, Altman DG. Identifying patients with undetected renal tract cancer in primary care: an independent and external validation of QCancer® (Renal) prediction model. Cancer Epidemiol. 2013;37:115-20.
  12. Harrell FE, Lee KL, Mark DB. Multivariable prognostic models: issues in developing models, evaluating assumptions and adequacy, and measuring and reducing errors. Stat Med. 1996;15:361-87.
  13. Canet J, Gallart L, Gomar C, Paluzie G, Vallès J, Castillo J, et al; ARISCAT Group. Prediction of postoperative pulmonary complications in a population-based surgical cohort. Anesthesiology. 2010;113:1338-50.
  14. Nashef SA, Roques F, Sharples LD, Nilsson J, Smith C, Goldstone AR, et al. EuroSCORE II. Eur J Cardiothorac Surg. 2012;41:734-44.
  15. Schulze MB, Hoffmann K, Boeing H, Linseisen J, Rohrmann S, Möhlig M, et al. An accurate risk score based on anthropometric, dietary, and lifestyle factors to predict the development of type 2 diabetes. Diabetes Care. 2007;30:510-5.
  16. Hippisley-Cox J, Coupland C, Robson J, Sheikh A, Brindle P. Predicting risk of type 2 diabetes in England and Wales: prospective derivation and validation of QDScore. BMJ. 2009;338:b880.
  17. D’Agostino RB, Vasan RS, Pencina MJ, Wolf PA, Cobain M, Massaro JM, et al. General cardiovascular risk profile for use in primary care: the Framingham Heart Study. Circulation. 2008;117:743-53.
  18. North RA, McCowan LM, Dekker GA, Poston L, Chan EH, Stewart AW, et al. Clinical risk prediction for pre-eclampsia in nulliparous women: development of model in international prospective cohort. BMJ. 2011;342:d1875.
  19. Altman DG, Vergouwe Y, Royston P, Moons KG. Prognosis and prognostic research: validating a prognostic model. BMJ. 2009;338:b605.
  20. Moons KG, Kengne AP, Grobbee DE, Royston P, Vergouwe Y, Altman DG, et al. Risk prediction models: II. External validation, model updating, and impact assessment. Heart. 2012;98:691-8.
  21. Toll DB, Janssen KJ, Vergouwe Y, Moons KG. Validation, updating and impact of clinical prediction rules: a review. J Clin Epidemiol. 2008;61:1085-94.
  22. Steyerberg EW, Pencina MJ, Lingsma HF, Kattan MW, Vickers AJ, VanCalster B. Assessing the incremental value of diagnostic and prognostic markers: a review and illustration. Eur J Clin Invest. 2012;42:216-28.
  23. Steyerberg EW, Bleeker SE, Moll HA, Grobbee DE, Moons KG. Internal and external validation of predictive models: a simulation study of bias and precision in small samples. J Clin Epidemiol. 2003;56:441-7.
  24. Steyerberg EW, Eijkemans MJ, Harrell FE, Habbema JD. Prognostic modelling with logistic regression analysis: a comparison of selection and estimation methods in small data sets. Stat Med. 2000;19:1059-79.
  25. Steyerberg EW, Eijkemans MJ, Harrell FE, Habbema JD. Prognostic modeling with logistic regression analysis: in search of a sensible strategy in small data sets. Med Decis Making. 2001;21:45-56.
  26. Altman DG, Royston P. What do we mean by validating a prognostic model? Stat Med. 2000;19:453-73.
  27. Ioannidis JPA, Khoury MJ. Improving validation practices in “omics” research. Science. 2011;334:1230-2.
  28. Justice AC, Covinsky KE, Berlin JA. Assessing the generalizability of prognostic information. Ann Intern Med. 1999;130:515-24.
  29. McGinn TG, Guyatt GH, Wyer PC, Naylor CD, Stiell IG, Richardson WS. Users’ guides to the medical literature: XXII: how to use articles about clinical decision rules. Evidence-Based Medicine Working Group. JAMA. 2000;284:79-84.
  30. Taylor JM, Ankesrt DP, Andridge RR. Validation of biomarker-based risk prediction models. Clin Cancer Res. 2008;14:5977-83.
  31. Janssen KJ, Moons KG, Kalkman CJ, Grobbee DE, Vergouwe Y. Updating methods improved the performance of a clinical prediction model in new patients. J Clin Epidemiol. 2008;61:76-86.
  32. Steyerberg EW, Harrell FE, Borsboom GJ, Eijkemans MJ, Vergouwe Y, Habbema JD. Internal validation of predictive models: efficiency of some procedures for logistic regression analysis. J Clin Epidemiol. 2001;54:774-81.
  33. Reilly BM, Evans AT. Translating clinical research into clinical practice: impact of using prediction rules to make decisions. Ann Intern Med. 2006;144:201-9.
  34. Bouwmeester W, Zuithoff NP, Mallett S, Geerlings MI, Vergouwe Y, Steyerberg EW, et al. Reporting and methods in clinical prediction research: a systematic review. PLoS Med. 2012;9:1-12.
  35. Rabar S, Lau R, O’Flynn N, Li L, Barry P; Guideline Development Group. Risk assessment of fragility fractures: summary of NICE guidance. BMJ. 2012;345:e3698.
  36. National Institute for Health and Care Excellence. Lipid modification: cardiovascular risk assessment and the modification of blood lipids for the primary and secondary prevention of cardiovascular disease. Clinical guideline CG67. London: National Institute for Health and Care Excellence; 2008. Accessed at http://guidance.nice.org.uk/CG67 on 30 October 2011.
  37. National Osteoporosis Foundation. Clinician’s guide to prevention and treatment of osteoporosis. Washington DC: National Osteoporsis Foundation; 2010. Accessed at http://nof.org/hcp/clinicians-guide on 17 January 2013.
  38. National Cholesterol Education Program (NCEP) Expert Panel on Detection, Evaluation, and Treatment of High Blood Cholesterol in Adults (Adult Treatment Panel III).. Third report of the National Cholesterol Education Program (NCEP) Expert Panel on detection, evaluation, and treatment of high blood cholesterol in adults (Adult Treatment Panel III) final report. Circulation. 2002;106:3143-421.
  39. Goldstein LB, Adams R, Alberts MJ, Appel LJ, Brass LM, Bushnell CD, et al; American Heart Association; American Stroke Association Stroke Council. Primary prevention of ischemic stroke: a guideline from the American Heart Association/American Stroke Association Stroke Council: cosponsored by the Atherosclerotic Peripheral Vascular Disease Interdisciplinary Working Group; Cardiovascular Nursing Council; Clinical Cardiology Council; Nutrition, Physical Activity, and Metabolism Council; and the Quality of Care and Outcomes Research Interdisciplinary Working Group. Circulation. 2006;113:e873-923.
  40. Lackland DT, Elkind MS, D’Agostino R, Dhamoon MS, Goff DC, Higashida RT, et al; American Heart Association Stroke Council; Council on Epidemiology and Prevention; Council on Cardiovascular Radiology and Intervention; Council on Cardiovascular Nursing; Council on Peripheral Vascular Disease; Council on Quality of Care and Outcomes Research. Inclusion of stroke in cardiovascular risk prediction instruments: a statement for healthcare professionals from the American Heart Association/American Stroke Association. Stroke. 2012;43:1998-2027.
  41. Perel P, Edwards P, Wentz R, Roberts I. Systematic review of prognostic models in traumatic brain injury. BMC Med Inform Decis Mak. 2006;6:38.
  42. Shariat SF, Karakiewicz PI, Margulis V, Kattan MW. Inventory of prostate cancer predictive tools. Curr Opin Urol. 2008;18:279-96.
  43. Altman DG. Prognostic models: a methodological framework and review of models for breast cancer. Cancer Invest. 2009;27:235-43.
  44. van Dieren S, Beulens JW, Kengne AP, Peelen LM, Rutten GE, Woodward M, et al. Prediction models for the risk of cardiovascular disease in patients with type 2 diabetes: a systematic review. Heart. 2012;98:360-9.
  45. Collins GS, Mallett S, Omar O, Yu LM. Developing risk prediction models for type 2 diabetes: a systematic review of methodology and reporting. BMC Med. 2011;9:103.
  46. Ettema RG, Peelen LM, Schuurmans MJ, Nierich AP, Kalkman CJ, Moons KG. Prediction models for prolonged intensive care unit stay after cardiac surgery: systematic review and validation study. Circulation. 2010;122:682-9.
  47. Collins GS, Moons KG. Comparing risk prediction models. BMJ. 2012;344:e3186.
  48. Siontis GC, Tzoulaki I, Siontis KC, Ioannidis JP. Comparisons of established risk prediction models for cardiovascular disease: systematic review. BMJ. 2012;344:e3318.
  49. Seel RT, Steyerberg EW, Malec JF, Sherer M, Macciocchi SN. Developing and evaluating prediction models in rehabilitation populations. Arch Phys Med Rehabil. 2012;93 8 Suppl S138-53.
  50. Green SM, Schriger DL, Yealy DM. Methodologic standards for interpreting clinical decision rules in emergency medicine: 2014 update. Ann Emerg Med. 2014;64:286-91.
  51. Laine C, Goodman SN, Griswold ME, Sox HC. Reproducible research: moving toward research the public can really trust. Ann Intern Med. 2007;146:450-3.
  52. Groves T, Godlee F. Open science and reproducible research. BMJ. 2012;344:e4383.
  53. Collins GS, Omar O, Shanyinde M, Yu LM. A systematic review finds prediction models for chronic kidney were poorly reported and often developed using inappropriate methods. J Clin Epidemiol. 2013;66:268-77.
  54. Mallett S, Royston P, Dutton S, Waters R, Altman DG. Reporting methods in studies developing prognostic models in cancer: a review. BMC Med. 2010;8:20.
  55. Mallett S, Royston P, Waters R, Dutton S, Altman DG. Reporting performance of prognostic models in cancer: a review. BMC Med. 2010;8:21.
  56. Burton A, Altman DG. Missing covariate data within cancer prognostic studies: a review of current reporting and proposed guidelines. Br J Cancer. 2004;91:4-8.
  57. Concato J, Feinstein AR, Holford TR. The risk of determining risk with multivariable models. Ann Intern Med. 1993;118:201-10.
  58. Laupacis A, Sekar N, Stiell IG. Clinical prediction rules. A review and suggested modifications of methodological standards. JAMA. 1997;277:488-94.
  59. Steurer J, Haller C, Häuselmann H, Brunner F, Bachmann LM. Clinical value of prognostic instruments to identify patients with an increased risk for osteoporotic fractures: systematic review. PLoS One. 2011;6:e19994.
  60. van Dijk WD, Bemt L, Haak-Rongen S, Bischoff E, Weel C, Veen JC, et al. Multidimensional prognostic indices for use in COPD patient care. A systematic review. Respir Res. 2011;12:151.
  61. Hayden JA, Côté P, Bombardier C. Evaluation of the quality of prognosis studies in systematic reviews. Ann Intern Med. 2006;144:427-37.
  62. Meads C, Ahmed I, Riley RD. A systematic review of breast cancer incidence risk prediction models with meta-analysis of their performance. Breast Cancer Res Treat. 2012;132:365-77.
  63. Mushkudiani NA, Hukkelhoven CW, Hernández AV, Murray GD, Choi SC, Maas AI, et al. A systematic review finds methodological improvements necessary for prognostic models in determining traumatic brain injury outcomes. J Clin Epidemiol. 2008;61:331-43.
  64. Rehn M, Perel P, Blackhall K, Lossius HM. Prognostic models for the early care of trauma patients: a systematic review. Scand J Trauma Resusc Emerg Med. 2011;19:17.
  65. Siontis GC, Tzoulaki I, Ioannidis JP. Predicting death: an empirical evaluation of predictive tools for mortality. Arch Intern Med. 2011;171:1721-6.
  66. Medlock S, Ravelli ACJ, Tamminga P, Mol BW, Abu-Hanna A. Prediction of mortality in very premature infants: a systematic review of prediction models. PLoS One. 2011;6:e23441.
  67. Maguire JL, Kulik DM, Laupacis A, Kuppermann N, Uleryk EM, Parkin PC. Clinical prediction rules for children: a systematic review. Pediatrics. 2011;128:e666-77.
  68. Kulik DM, Uleryk EM, Maguire JL. Does this child have appendicitis? A systematic review of clinical prediction rules for children with acute abdominal pain. J Clin Epidemiol. 2013;66:95-104.
  69. Kulik DM, Uleryk EM, Maguire JL. Does this child have bacterial meningitis? A systematic review of clinical prediction rules for children with suspected bacterial meningitis. J Emerg Med. 2013;45:508-19.
  70. Jacob M, Lewsey JD, Sharpin C, Gimson A, Rela M, van der Meulen JH. Systematic review and validation of prognostic models in liver transplantation. Liver Transpl. 2005;11:814-25.
  71. Hussain A, Choukairi F, Dunn K. Predicting survival in thermal injury: a systematic review of methodology of composite prediction models. Burns. 2013;39:835-50.
  72. Haskins R, Rivett DA, Osmotherly PG. Clinical prediction rules in the physiotherapy management of low back pain: a systematic review. Man Ther. 2012;17:9-21.
  73. Echouffo-Tcheugui JB, Kengne AP. Risk models to predict chronic kidney disease and its progression: a systematic review. PLoS Med. 2012;9:e1001344.
  74. Echouffo-Tcheugui JB, Batty GD, Kivimäki M, Kengne AP. Risk models to predict hypertension: a systematic review. PLoS One. 2013;8:e67370.
  75. Anothaisintawee T, Teerawattananon Y, Wiratkapun C, Kasamesup V, Thakkinstian A. Risk prediction models of breast cancer: a systematic review of model performances. Breast Cancer Res Treat. 2012;133:1-10.
  76. van Oort L, van den Berg T, Koes BW, de Vet RH, Anema HJ, Heymans MW, et al. Preliminary state of development of prediction models for primary care physical therapy: a systematic review. J Clin Epidemiol. 2012;65:1257-66.
  77. Tangri N, Kitsios GD, Inker LA, Griffith J, Naimark DM, Walker S, et al. Risk prediction models for patients with chronic kidney disease: a systematic review. Ann Intern Med. 2013;158:596-603.
  78. van Hanegem N, Breijer MC, Opmeer BC, Mol BW, Timmermans A. Prediction models in women with postmenopausal bleeding: a systematic review. Womens Health (Lond Engl). 2012;8:251-62.
  79. Minne L, Ludikhuize J, de Jonge E, de Rooij S, Abu-Hanna A. Prognostic models for predicting mortality in elderly ICU patients: a systematic review. Intensive Care Med. 2011;37:1258-68.
  80. Leushuis E, van der Steeg JW, Steures P, Bossuyt PM, Eijkemans MJ, van der Veen F, et al. Prediction models in reproductive medicine: a critical appraisal. Hum Reprod Update. 2009;15:537-52.
  81. Jaja BN, Cusimano MD, Etminan N, Hanggi D, Hasan D, Ilodigwe D, et al. Clinical prediction models for aneurysmal subarachnoid hemorrhage: a systematic review. Neurocrit Care. 2013;18:143-53.
  82. Wlodzimirow KA, Eslami S, Chamuleau RA, Nieuwoudt M, Abu-Hanna A. Prediction of poor outcome in patients with acute liver failure-systematic review of prediction models. PLoS One. 2012;7:e50952.
  83. Phillips B, Wade R, Stewart LA, Sutton AJ. Systematic review and meta-analysis of the discriminatory performance of risk prediction rules in febrile neutropaenic episodes in children and young people. Eur J Cancer. 2010;46:2950-64.
  84. Rubin KH, Friis-Holmberg T, Hermann AP, Abrahamsen B, Brixen K. Risk assessment tools to identify women with increased risk of osteoporotic fracture: complexity or simplicity? A systematic review. J Bone Miner Res. 2013;28:1701-17.
  85. Abbasi A, Peelen LM, Corpeleijn E, van der Schouw YT, Stolk RP, Spijkerman AM, et al. Prediction models for risk of developing type 2 diabetes: systematic literature search and independent external validation study. BMJ. 2012;345:e5900.
  86. Braband M, Folkestad L, Clausen NG, Knudsen T, Hallas J. Risk scoring systems for adults admitted to the emergency department: a systematic review. Scand J Trauma Resusc Emerg Med. 2010;18:8.
  87. Maguire JL, Boutis K, Uleryk EM, Laupacis A, Parkin PC. Should a head-injured child receive a head CT scan? A systematic review of clinical prediction rules. Pediatrics. 2009;124:e145-54.
  88. Vuong K, McGeechan K, Armstrong BK, Cust AE. Risk prediction models for incident primary cutaneous melanoma: a systematic review. JAMA Dermatol. 2014;150:434-44.
  89. Ahmed I, Debray TP, Moons KG, Riley RD. Developing and validating risk prediction models in an individual participant data meta-analysis. BMC Med Res Methodol. 2014;14:3.
  90. Huen SC, Parikh CR. Predicting acute kidney injury after cardiac surgery: a systematic review. Ann Thorac Surg. 2012;93:337-41.
  91. Calle P, Cerro L, Valencia J, Jaimes F. Usefulness of severity scores in patients with suspected infection in the emergency department: a systematic review. J Emerg Med. 2012;42:379-91.
  92. Usher-Smith JA, Emery J, Kassianos AP, Walter FM. Risk prediction models for melanoma: a systematic review. Cancer Epidemiol Biomarkers Prev. 2014;23:1450-63.
  93. Warnell I, Chincholkar M, Eccles M. Predicting perioperative mortality after oesophagectomy: a systematic review of performance and methods of multivariate models. Br J Anaesth. 2014.
  94. Silverberg N, Gardner AJ, Brubacher J, Panenka W, Li JJ, Iverson GL. Systematic review of multivariable prognostic models for mild traumatic brain injury. J Neurotrauma. 2014.
  95. Delebarre M, Macher E, Mazingue F, Martinot A, Dubos F. Which decision rules meet methodological standards in children with febrile neutropenia? Results of a systematic review and analysis. Pediatr Blood Cancer. 2014;61:1786-91.
  96. Schulz KF, Altman DG, Moher D; CONSORT Group. CONSORT 2010 statement: updated guidelines for reporting parallel group randomised trials. BMJ. 2010;340:c332.
  97. von Elm E, Altman DG, Egger M, Pocock SJ, Gøtzsche PC, Vandenbroucke JP; STROBE Initiative. Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) statement: guidelines for reporting observational studies. BMJ. 2007;335:806-8.
  98. McShane LM, Altman DG, Sauerbrei W, Taube SE, Gion M, Clark GM; Statistics Subcommittee of the NCI-EORTC Working Group on Cancer Diagnostics. Reporting recommendations for tumor marker prognostic studies (REMARK). J Natl Cancer Inst. 2005;97:1180-4.
  99. Gallo V, Egger M, McCormack V, Farmer PB, Ioannidis JP, Kirsch-Volders M, et al. STrengthening the Reporting of OBservational studies in Epidemiology - Molecular Epidemiology (STROBE-ME): an extension of the STROBE statement. Eur J Clin Invest. 2012;42:1-16.
  100. Bossuyt PM, Reitsma JB, Bruns DE, Gatsonis CA, Glasziou PP, Irwig LM, et al; Standards for Reporting of Diagnostic Accuracy. Towards complete and accurate reporting of studies of diagnostic accuracy: the STARD Initiative. Radiology. 2003;226:24-8.
  101. Janssens AC, Ioannidis JP, vanDuijn CM, Little J, Khoury MJ; GRIPS Group. Strengthening the reporting of genetic risk prediction studies: the GRIPS statement. Eur J Clin Invest. 2011;41:1004-9.
  102. Moons KG, Altman DG, Vergouwe Y, Royston P. Prognosis and prognostic research: application and impact of prognostic models in clinical practice. BMJ. 2009;338:b606.
  103. Moons KG, Kengne AP, Woodward M, Royston P, Vergouwe Y, Altman DG, et al. Risk prediction models: I. Development, internal validation, and assessing the incremental value of a new (bio)marker. Heart. 2012;98:683-90.
  104. Labarère J, Bertrand R, Fine MJ. How to derive and validate clinical prediction models for use in intensive care medicine. Intensive Care Med. 2014;40:513-27.
  105. Tzoulaki I, Liberopoulos G, Ioannidis JP. Use of reclassification for assessment of improved prediction: an empirical evaluation. Int J Epidemiol. 2011;40:1094-105.
  106. Peters SA, Bakker M, den Ruijter HM, Bots ML. Added value of CAC in risk stratification for cardiovascular events: a systematic review. Eur J Clin Invest. 2012;42:110-6.
  107. Wallace E, Smith SM, Perera-Salazar R, Vaucher P, McCowan C, Collins G, et al; International Diagnostic and Prognosis Prediction (IDAPP) Group.. Framework for the impact analysis and implementation of clinical prediction rules (CPRs). BMC Med Inform Decis Mak. 2011;11:62.
  108. Altman DG, McShane LM, Sauerbrei W, Taube SE. Reporting recommendations for tumor marker prognostic studies (REMARK): explanation and elaboration. BMC Med. 2012;10:51.
  109. Campbell MK, Elbourne DR, Altman DG; CONSORT Group. CONSORT statement: extension to cluster randomised trials. BMJ. 2004;328:702-8.
  110. Teasdale G, Jennett B. Assessment of coma and impaired consciousness. A practical scale. Lancet. 1974;2:81-4.
  111. Farrell B, Godwin J, Richards S, Warlow C. The United Kingdom transient ischaemic attack (UK-TIA) aspirin trial: final results. J Neurol Neurosurg Psychiatry. 1991;54:1044-54.
  112. Harrell FE. Regression Modeling Strategies: With Applications to Linear Models, Logistic Regression and Survival Analysis. New York: Springer; 2001.
  113. Moher D, Schulz KF, Simera I, Altman DG. Guidance for developers of health research reporting guidelines. PLoS Med. 2010;16:e1000217.
  114. Collins GS, Reitsma JB, Altman DG, Moons KG. Transparent Reporting of a multivariable prediction model for Individual Prognosis Or Diagnosis: the TRIPOD statement. Ann Intern Med. 2014;162:55-63.
  115. Morise AP, Haddad WJ, Beckner D. Development and validation of a clinical score to estimate the probability of coronary artery disease in men and women presenting with suspected coronary disease. Am J Med. 1997;102:350-6.
  116. Dehing-Oberije C, Yu S, DeRuysscher D, Meersschout S, VanBeek K, Lievens Y, et al. Development and external validation of prognostic model for 2-year survival of non-small-cell lung cancer patients treated with chemoradiotherapy. Int J Radiat Oncol Biol Phys. 2009;74:355-62.
  117. Collins GS, Altman DG. Predicting the 10 year risk of cardiovascular disease in the United Kingdom: independent and external validation of an updated version of QRISK2. BMJ. 2012;344:e4181.
  118. Michikawa T, Inoue M, Sawada N, Iwasaki M, Tanaka Y, Shimazu T, et al; Japan Public Health Center-based Prospective Study Group. Development of a prediction model for 10-year risk of hepatocellular carcinoma in middle-aged Japanese: the Japan Public Health Center-based Prospective Study Cohort II. Prev Med. 2012;55:137-43.
  119. Morise AP, Detrano R, Bobbio M, Diamond GA. Development and validation of a logistic regression-derived algorithm for estimating the incremental probability of coronary artery disease before and after exercise testing. J Am Coll Cardiol. 1992;20:1187-96.
  120. D’Agostino RB, Grundy S, Sullivan LM, Wilson P; CHD Risk Prediction Group. Validation of the Framingham coronary heart disease prediction scores: results of a multiple ethnic groups investigation. JAMA. 2001;286:180-7.
  121. Beck DH, Smith GB, Pappachan JV, Millar B. External validation of the SAPS II, APACHE II and APACHE III prognostic models in South England: a multicentre study. Intensive Care Med. 2003;29:249-56.
  122. Collins GS, de Groot JA, Dutton S, Omar O, Shanyinde M, Tajar A, et al. External validation of multivariable prediction models: a systematic review of methodological conduct and reporting. BMC Med Res Methodol. 2014;14:40.
  123. Perel P, Prieto-Merino D, Shakur H, Clayton T, Lecky F, Bouamra O, et al. Predicting early death in patients with traumatic bleeding: development and validation of prognostic model. BMJ. 2012;345:e5166.
  124. Stiell IG, Greenberg GH, McKnight RD, Nair RC, McDowell I, Reardon M, et al. Decision rules for the use of radiography in acute ankle injuries. Refinement and prospective validation. JAMA. 1993;269:1127-32.
  125. Holland JL, Wilczynski NL, Haynes RB; Hedges Team. Optimal search strategies for identifying sound clinical prediction studies in EMBASE. BMC Med Inform Decis Mak. 2005;5:11.
  126. Ingui BJ, Rogers MA. Searching for clinical prediction rules in . J Am Med Inform Assoc. 2001;8:391-7.
  127. Wong SS, Wilczynski NL, Haynes RB, Ramkissoonsingh R; Hedges Team. Developing optimal search strategies for detecting sound clinical prediction studies in . AMIA Annu Symp Proc. 2003:728-32.
  128. Geersing GJ, Bouwmeester W, Zuithoff P, Spijker R, Leeflang M, Moons KG. Search filters for finding prognostic and diagnostic prediction studies in Medline to enhance systematic reviews. PLoS One. 2012;7:e32844.
  129. Keogh C, Wallace E, O’Brien KK, Murphy PJ, Teljeur C, McGrath B, et al. Optimized retrieval of primary care clinical prediction rules from to establish a Web-based register. J Clin Epidemiol. 2011;64:848-60.
  130. Rietveld RP, terRiet G, Bindels PJ, Sloos JH, van Weert HC. Predicting bacterial cause in infectious conjunctivitis: cohort study on informativeness of combinations of signs and symptoms. BMJ. 2004;329:206-10.
  131. Poorten VV, Hart A, Vauterin T, Jeunen G, Schoenaers J, Hamoir M, et al. Prognostic index for patients with parotid carcinoma: international external validation in a Belgian-German database. Cancer. 2009;115:540-50.
  132. Moynihan R, Glassock R, Doust J. Chronic kidney disease controversy: how expanding definitions are unnecessarily labelling many people as diseased. BMJ. 2013;347:f4298.
  133. Moynihan R, Henry D, Moons KG. Using evidence to combat overdiagnosis and overtreatment: evaluating treatments, tests, and disease definitions in the time of too much. PLoS Med. 2014;11:e1001655.
  134. Dowling S, Spooner CH, Liang Y, Dryden DM, Friesen C, Klassen TP, et al. Accuracy of Ottawa Ankle Rules to exclude fractures of the ankle and midfoot in children: a meta-analysis. Acad Emerg Med. 2009;16:277-87.
  135. Bachmann LM, Kolb E, Koller MT, Steurer J, ter Riet G. Accuracy of Ottawa ankle rules to exclude fractures of the ankle and mid-foot: systematic review. BMJ. 2003;326:417.
  136. Büller HR, Ten Cate-Hoek AJ, Hoes AW, Joore MA, Moons KG, Oudega R, et al; AMUSE (Amsterdam Maastricht Utrecht Study on thromboEmbolism) Investigators. Safely ruling out deep venous thrombosis in primary care. Ann Intern Med. 2009;150:229-35.
  137. Sparks AB, Struble CA, Wang ET, Song K, Oliphant A. Noninvasive prenatal detection and selective analysis of cell-free DNA obtained from maternal blood: evaluation for trisomy 21 and trisomy 18. Am J Obstet Gynecol. 2012;206:319.
  138. Ankerst DP, Boeck A, Freedland SJ, Thompson IM, Cronin AM, Roobol MJ, et al. Evaluating the PCPT risk calculator in ten international biopsy cohorts: results from the Prostate Biopsy Collaborative Group. World J Urol. 2012;30:181-7.
  139. Hippisley-Cox J, Coupland C, Vinogradova Y, Robson J, Minhas R, Sheikh A, et al. Predicting cardiovascular risk in England and Wales: prospective derivation and validation of QRISK2. BMJ. 2008;336:1475-82.
  140. Conroy RM, Pyörälä K, Fitzgerald AP, Sans S, Menotti A, De Backer G, et al; SCORE Project Group. Estimation of ten-year risk of fatal cardiovascular disease in Europe: the SCORE project. Eur Heart J. 2003;24:987-1003.
  141. Califf RM, Woodlief LH, Harrell FE, Lee KL, White HD, Guerci A, et al. Selection of thrombolytic therapy for individual patients: development of a clinical model. GUSTO-I Investigators. Am Heart J. 1997;133:630-9.
  142. McCowan C, Donnan PT, Dewar J, Thompson A, Fahey T. Identifying suspected breast cancer: development and validation of a clinical prediction rule. Br J Gen Pract. 2011;61:e205-14.
  143. Campbell HE, Gray AM, Harris AL, Briggs AH, Taylor MA. Estimation and external validation of a new prognostic model for predicting recurrence-free survival for early breast cancer patients in the UK. Br J Cancer. 2010;103:776-86.
  144. Wilson PW, D’Agostino RB, Levy D, Belanger AM, Silbershatz H, Kannel WB. Prediction of coronary heart disease using risk factor categories. Circulation. 1998;97:1837-47.
  145. Kengne AP, Patel A, Marre M, Travert F, Lievre M, Zoungas S, et al; ADVANCE Collaborative Group. Contemporary model for cardiovascular risk prediction in people with type 2 diabetes. Eur J Cardiovasc Prev Rehabil. 2011;18:393-8.
  146. Appelboam A, Reuben AD, Benger JR, Beech F, Dutson J, Haig S, et al. Elbow extension test to rule out elbow fracture: multicentre, prospective validation and observational study of diagnostic accuracy in adults and children. BMJ. 2008;337:a2428.
  147. Puhan MA, Hansel NN, Sobradillo P, Enright P, Lange P, Hickson D, et al; International COPD Cohorts Collaboration Working Group. Large-scale international validation of the ADO index in subjects with COPD: an individual subject data analysis of 10 cohorts. BMJ Open. 2012;2:6.
  148. Knottnerus JA. The Evidence Base of Clinical Diagnosis. London: BMJ Books; 2002.
  149. Knottnerus JA, Muris JW. Assessment of the accuracy of diagnostic tests: the cross-sectional study. J Clin Epidemiol. 2003;56:1118-28.
  150. Grobbee DE, Hoes AW. Clinical Epidemiology: Principles, Methods, and Applications for Clinical Research. London: Jones and Bartlett Publishers; 2009.
  151. Sackett DL, Tugwell P, Guyatt GH. Clinical Epidemiology: A Basic Science for Clinical Medicine. 2d ed. Boston: Little, Brown; 1991.
  152. Biesheuvel CJ, Vergouwe Y, Oudega R, Hoes AW, Grobbee DE, Moons KG. Advantages of the nested case-control design in diagnostic research. BMC Med Res Methodol. 2008;8:48.
  153. Knottnerus JA, Dinant GJ. Medicine based evidence, a prerequisite for evidence based medicine. BMJ. 1997;315:1109-10.
  154. Knottnerus JA, vanWeel C, Muris JW. Evaluation of diagnostic procedures. BMJ. 2002;324:477-80.
  155. Rutjes AW, Reitsma JB, Vandenbroucke JP, Glas AS, Bossuyt PM. Case-control and two-gate designs in diagnostic accuracy studies. Clin Chem. 2005;51:1335-41.
  156. Lijmer JG, Mol BW, Heisterkamp S, Bonsel GJ, Prins MH, Van der Meulen JH, et al. Empirical evidence of design-related bias in studies of diagnostic tests. JAMA. 1999;282:1061-6.
  157. van Zaane B, Vergouwe Y, Donders AR, Moons KG. Comparison of approaches to estimate confidence intervals of post-test probabilities of diagnostic test results in a nested case-control study. BMC Med Res Methodol. 2012;12:166.
  158. Lumbreras B, Parker LA, Porta M, Pollán M, Ioannidis JP, Hernández-Aguado I. Overinterpretation of clinical applicability in molecular diagnostic research. Clin Chem. 2009;55:786-94.
  159. Tzoulaki I, Siontis KC, Ioannidis JP. Prognostic effect size of cardiovascular biomarkers in datasets from observational studies versus randomised trials: meta-epidemiology study. BMJ. 2011;343:d6829.
  160. Greving JP, Wermer MJ, Brown RD, Morita A, Juvela S, Yonekura M, et al. Development of the PHASES score for prediction of risk of rupture of intracranial aneurysms: a pooled analysis of six prospective cohort studies. Lancet Neurol. 2014;13:59-66.
  161. Collins GS, Altman DG. Predicting the adverse risk of statin treatment: an independent and external validation of Qstatin risk scores in the UK. Heart. 2012;98:1091-7.
  162. Glickman SW, Shofer FS, Wu MC, Scholer MJ, Ndubuizu A, Peterson ED, et al. Development and validation of a prioritization rule for obtaining an immediate 12-lead electrocardiogram in the emergency department to identify ST-elevation myocardial infarction. Am Heart J. 2012;163:372-82.
  163. Debray TP, Koffijberg H, Lu D, Vergouwe Y, Steyerberg EW, Moons KG. Incorporating published univariable associations in diagnostic and prognostic modeling. BMC Med Res Methodol. 2012;12:121.
  164. Debray TP, Koffijberg H, Vergouwe Y, Moons KG, Steyerberg EW. Aggregating published prediction models with individual participant data: a comparison of different approaches. Stat Med. 2012;31:2697-712.
  165. Debray TP, Moons KG, Abo-Zaid GM, Koffijberg H, Riley RD. Individual participant data meta-analysis for a binary outcome: one-stage or two-stage? PLoS One. 2013;8:e60650.
  166. Debray TP, Moons KG, Ahmed I, Koffijberg H, Riley RD. A framework for developing, implementing, and evaluating clinical prediction models in an individual participant data meta-analysis. Stat Med. 2013;32:3158-80.
  167. Bouwmeester W, Twisk JW, Kappen TH, van Klei WA, Moons KG, Vergouwe Y. Prediction models for clustered data: comparison of a random intercept and standard regression model. BMC Med Res Methodol. 2013;13:19.
  168. Bouwmeester W, Moons KG, Happen TH, van Klei WA, Twisk JW, Eijkemans MJ, et al. Internal validation of risk models in clustered data: a comparison of bootstrap schemes. Am J Epidemiol. 2013;177:1209-17.
  169. Rosner B, Qiu W, Lee ML. Assessing discrimination of risk prediction rules in a clustered data setting. Lifetime Data Anal. 2013;19:242-56.
  170. van Klaveren D, Steyerberg EW, Perel P, Vergouwe Y. Assessing discriminative ability of risk models in clustered data. BMC Med Res Methodol. 2014;14:5.
  171. van Klaveren D, Steyerberg EW, Vergouwe Y. Interpretation of concordance measures for clustered data. Stat Med. 2014;33:714-6.
  172. Sanderson J, Thompson SG, White IR, Aspelund T, Pennells L. Derivation and assessment of risk prediction models using case-cohort data. BMC Med Res Methodol. 2013;13:113.
  173. Ganna A, Reilly M, de Faire U, Pedersen N, Magnusson P, Ingelsson E. Risk prediction measures for case-cohort and nested case-control designs: an application to cardiovascular disease. Am J Epidemiol. 2012;175:715-24.
  174. Kulathinal S, Karvanen J, Saarela O, Kuulasmaa K. Case-cohort design in practice—experiences from the MORGAM Project. Epidemiol Perspect Innov. 2007;4:15.
  175. Kengne AP, Beulens JW, Peelen LM, Moons KG, van der Schouw YT, Schulze MB, et al. Non-invasive risk scores for prediction of type 2 diabetes (EPIC-InterAct): a validation of existing models. Lancet Diabetes Endocrinol. 2014;2:19-29.
  176. Alba AC, Agoritsas T, Jankowski M, Courvoisier D, Walter SD, Guyatt GH, et al. Risk prediction models for mortality in ambulatory heart failure patients: a systematic review. Circ Heart Fail. 2013;6:881-9.
  177. Arkenau HT, Barriuso J, Olmos D, Ang JE, de Bono J, Judson I, et al. Prospective validation of a prognostic score to improve patient selection for oncology phase I trials. J Clin Oncol. 2009;27:2692-6.
  178. Ronga A, Vaucher P, Haasenritter J, Donner-Banzhoff N, Bösner S, Verdon F, et al. Development and validation of a clinical prediction rule for chest wall syndrome in primary care. BMC Fam Pract. 2012;13:74.
  179. Martinez JA, Belastegui A, Basabe I, Goicoechea X, Aguirre C, Lizeaga N, et al. Derivation and validation of a clinical prediction rule for delirium in patients admitted to a medical ward: an observational study. BMJ Open. 2012;2:e001599.
  180. Rahimi K, Bennett D, Conrad N, Williams TM, Basu J, Dwight J, et al. Risk prediction in patients with heart failure: a systematic review and analysis. JACC Heart Fail. 2014;2:440-6.
  181. Ebell MH, Afonson AM, Gonzales R, Stein J, Genton B, Senn N. Development and validation of a clinical decision rule for the diagnosis of influenza. J Am Board Fam Med. 2012;25:55-62.
  182. Counsell C, Dennis M. Systematic review of prognostic models in patients with acute stroke. Cerebrovasc Dis. 2001;12:159-70.
  183. Knottnerus JA. Between iatrotropic stimulus and interiatric referral: the domain of primary care research. J Clin Epidemiol. 2002;55:1201-6.
  184. Moreno R, Apolone G. Impact of different customization strategies in the performance of a general severity score. Crit Care Med. 1997;25:2001-8.
  185. Tu JV, Austin PC, Walld R, Roos L, Agras J, McDonald KM. Development and validation of the Ontario acute myocardial infarction mortality prediction rules. J Am Coll Cardiol. 2001;37:992-7.
  186. Vergouwe Y, Moons KG, Steyerberg EW. External validity of risk models: use of benchmark values to disentangle a case-mix effect from incorrect coefficients. Am J Epidemiol. 2010;172:971-80.
  187. Kappen TH, Vergouwe Y, van Klei WA, van Wolfswinkel L, Kalkman CJ, Moons KG. Adaptation of clinical prediction models for application in local settings. Med Decis Making. 2012;32:E1-10.
  188. Oudega R, Hoes AW, Moons KG. The Wells rule does not adequately rule out deep venous thrombosis in primary care patients. Ann Intern Med. 2005;143:100-7.
  189. Knottnerus JA, Leffers P. The influence of referral patterns on the characteristics of diagnostic tests. J Clin Epidemiol. 1992;45:1143-54.
  190. Knottnerus JA. The effects of disease verification and referral on the relationship between symptoms and diseases. Med Decis Making. 1987;7:139-48.
  191. Eberhart LH, Morin AM, Guber D, Kretz FJ, Schäuffelen A, Treiber H, et al. Applicability of risk scores for postoperative nausea and vomiting in adults to paediatric patients. Br J Anaesth. 2004;93:386-92.
  192. Debray TP, Vergouwe Y, Koffijberg H, Nieboer D, Steyerberg EW, Moons KG. A new framework to enhance the interpretation of external validation studies of clinical prediction models. J Clin Epidemiol. 2014 Aug 29 [Epub ahead of print].
  193. Klemke CD, Mansmann U, Poenitz N, Dippel E, Goerdt S. Prognostic factors and prediction of prognosis by the CTCL Severity Index in mycosis fungoides and Sézary syndrome. Br J Dermatol. 2005;153:118-24.
  194. Tay SY, Thoo FL, Sitoh YY, Seow E, Wong HP. The Ottawa Ankle Rules in Asia: validating a clinical decision rule for requesting X-rays in twisting ankle and foot injuries. J Emerg Med. 1999;17:945-7.
  195. Donders AR, van der Heijden GJ, Stijnen T, Moons KG. Review: a gentle introduction to imputation of missing values. J Clin Epidemiol. 2006;59:1087-91.
  196. Groenwold RH, White IR, Donders AR, Carpenter JR, Altman DG, Moons KG. Missing covariate data in clinical research: when and when not to use the missing-indicator method for analysis. CMAJ. 2012;184:1265-9.
  197. Janssen KJ, Donders AR, Harrell FE, Vergouwe Y, Chen Q, Grobbee DE, et al. Missing covariate data in medical research: to impute is better than to ignore. J Clin Epidemiol. 2010;63:721-7.
  198. Janssen KJ, Vergouwe Y, Donders AR, Harrell FE, Chen Q, Grobbee DE, et al. Dealing with missing predictor values when applying clinical prediction models. Clin Chem. 2009;55:994-1001.
  199. Moons KG, Donders RA, Stijnen T, Harrell FE. Using the outcome for imputation of missing predictor values was preferred. J Clin Epidemiol. 2006;59:1092-101.
  200. Sterne JA, White IR, Carlin JB, Spratt M, Royston P, Kenward MG, et al. Multiple imputation for missing data in epidemiological and clinical research: potential and pitfalls. BMJ. 2009;338:b2393.
  201. Vergouwe Y, Royston P, Moons KG, Altman DG. Development and validation of a prediction model with missing predictor data: a practical approach. J Clin Epidemiol. 2010;63:205-14.
  202. Hemingway H, Croft P, Perel P, Hayden JA, Abrams K, Timmis A, et al; PROGRESS Group. Prognosis research strategy (PROGRESS) 1: a framework for researching clinical outcomes. BMJ. 2013;346:35595.
  203. Liew SM, Doust J, Glasziou P. Cardiovascular risk scores do not account for the effect of treatment: a review. Heart. 2011;97:689-97.
  204. Simon R, Altman D, G. Statistical aspects of prognostic factor studies in oncology. Br J Cancer. 1994;69:979-85.
  205. Landefeld CS, Goldman L. Major bleeding in outpatients treated with warfarin: incidence and prediction by factors known at the start of outpatient therapy. Am J Med. 1989;87:144-52.
  206. Schuit E, Groenwold RH, Harrell FE, de Kort WL, Kwee A, Mol BW, et al. Unexpected predictor-outcome associations in clinical prediction research: causes and solutions. CMAJ. 2013;185:E499-505.
  207. Wong J, Taljaard M, Forster AJ, Escobar GJ, van Walraven C. Addition of time-dependent covariates to a survival model significantly improved predictions for daily risk of hospital death. J Eval Clin Pract. 2013;19:351-7.
  208. Ridker PM, Buring JE, Rifai N, Cook NR. Development and validation of improved algorithms for the assessment of global cardiovascular risk in women: the Reynolds Risk Score. JAMA. 2007;297:611-9.
  209. Reitsma JB, Rutjes AW, Khan KS, Coomarasamy A, Bossuyt PM. A review of solutions for diagnostic accuracy studies with an imperfect or missing reference standard. J Clin Epidemiol. 2009;62:797-806.
  210. Massing MW, Simpson RJ, Rautaharju PM, Schreiner PJ, Crow R, Heiss G. Usefulness of ventricular premature complexes to predict coronary heart disease events and mortality (from the Atherosclerosis Risk In Communities cohort). Am J Cardiol. 2006;98:1609-12.
  211. Craig JC, Williams GJ, Jones M, Codarini M, Macaskill P, Hayen A, et al. The accuracy of clinical symptoms and signs for the diagnosis of serious bacterial infection in young febrile children: prospective cohort study of 15 781 febrile illnesses. BMJ. 2010;340:c1594.
  212. Todenhofer T, Renninger M, Schwentner C, Stenzl A, Gakis G. A new prognostic model for cancer-specific survival after radical cystectomy including pretreatment thrombocytosis and standard pathological risk factors. BJU Int. 2012;110 11 Pt B E533-40.
  213. Boggs DA, Rosenberg L, Pencina MJ, Adams-Campbell LL, Palmer JR. Validation of a breast cancer risk prediction model developed for Black women. J Natl Cancer Inst. 2013;105:361-7.
  214. Knottnerus JA, Buntinx F. The Evidence Base of Clinical Diagnosis: Theory and Methods of Diagnostic Research. Hoboken, NJ: Wiley-Blackwell; 2009.
  215. Naaktgeboren CA, de Groot JA, van Smeden M, Moons KG, Reitsma JB. Evaluating diagnostic accuracy in the face of multiple reference standards. Ann Intern Med. 2013;159:195-202.
  216. Bertens LC, Broekhuizen BD, Naaktgeboren CA, Rutten FH, Hoes AW, van Mourik Y, et al. Use of expert panels to define the reference standard in diagnostic research: a systematic review of published methods and reporting. PLoS Med. 2013;10:e1001531.
  217. Naaktgeboren CA, Bertens LC, van Smeden M, Groot JA, Moons KG, Reitsma JB. Value of composite reference standards in diagnostic research. BMJ. 2013;347:f5605.
  218. de Groot JA, Bossuyt PM, Reitsma JB, Rutjes AW, Dendukuri N, Janssen KJ, et al. Verification problems in diagnostic accuracy studies: consequences and solutions. BMJ. 2011;343:d4770.
  219. de Groot JA, Dendukuri N, Janssen KJ, Reitsma JB, Brophy J, Joseph L, et al. Adjusting for partial verification or workup bias in meta-analyses of diagnostic accuracy studies. Am J Epidemiol. 2012;175:847-53.
  220. Rutjes AW, Reitsma JB, DiNisio M, Smidt N, van Rijn JC, Bossuyt PM. Evidence of bias and variation in diagnostic accuracy studies. CMAJ. 2006;174:469-76.
  221. Rouzier R, Pusztai L, Delaloge S, Gonzalez-Angulo AM, Andre F, Hess KR, et al. Nomograms to predict pathologic complete response and metastasis-free survival after preoperative chemotherapy for breast cancer. J Clin Oncol. 2005;23:8331-9.
  222. Elliott J, Beringer T, Kee F, Marsh D, Willis C, Stevenson M. Predicting survival after treatment for fracture of the proximal femur and the effect of delays to surgery. J Clin Epidemiol. 2003;56:788-95.
  223. Adams LA, Bulsara M, Rossi E, DeBoer B, Speers D, George J, et al. Hepascore: an accurate validated predictor of liver fibrosis in chronic hepatitis C infection. Clin Chem. 2005;51:1867-73.
  224. Hess EP, Brison RJ, Perry JJ, Calder LA, Thiruganasambandamoorthy V, Agarwal D, et al. Development of a clinical prediction rule for 30-day cardiac events in emergency department patients with chest pain and possible acute coronary syndrome. Ann Emerg Med. 2012;59:115-25.
  225. Moons KG, Grobbee DE. When should we remain blind and when should our eyes remain open in diagnostic studies? J Clin Epidemiol. 2002;55:633-6.
  226. Rutjes AW, Reitsma JB, Coomarasamy A, Khan KS, Bossuyt PM. Evaluation of diagnostic tests when there is no gold standard. A review of methods. Health Technol Assess. 2007;iii:ix-51.
  227. Kaijser J, Sayasneh A, Van Hoorde K, Ghaem-Maghami S, Bourne T, Timmerman D, et al. Presurgical diagnosis of adnexal tumours using mathematical models and scoring systems: a systematic review and meta-analysis. Hum Reprod Update. 2014;20:449-52.
  228. Kaul V, Friedenberg FK, Braitman LE, Anis U, Zaeri N, Fazili J, et al. Development and validation of a model to diagnose cirrhosis in patients with hepatitis C. Am J Gastroenterol. 2002;97:2623-8.
  229. Halbesma N, Jansen DF, Heymans MW, Stolk RP, de Jong PE, Gansevoort RT; PREVEND Study Group. Development and validation of a general population renal risk score. Clin J Am Soc Nephrol. 2011;6:1731-8.
  230. Beyersmann J, Wolkewitz M, Schumacher M. The impact of time-dependent bias in proportional hazards modelling. Stat Med. 2008;27:6439-54.
  231. van Walraven C, Davis D, Forster AJ, Wells GA. Time-dependent bias was common in survival analyses published in leading clinical journals. J Clin Epidemiol. 2004;57:672-82.
  232. Rochon J. Issues in adjusting for covariates arising postrandomization in clinical trials. Drug Inf J. 1999;33:1219-28.
  233. D’Agostino RB. Beyond baseline data: the use of time-varying covariates. J Hypertens. 2008;26:639-40.
  234. Scheike TH. Time-varying effects in survival analysis.. In: Rao CR, eds. Advances in Survival Analysis. Amsterdam: Elsevier; 2004:61-8.
  235. Sun GW, Shook TL, Kay GL. Inappropriate use of bivariable analysis to screen risk factors for use in multivariable analysis. J Clin Epidemiol. 1996;49:907-16.
  236. Rutten FH, Vonken EJ, Cramer MJ, Moons KG, Velthuis BB, Prakken NH, et al. Cardiovascular magnetic resonance imaging to identify left-sided chronic heart failure in stable patients with chronic obstructive pulmonary disease. Am Heart J. 2008;156:506-12.
  237. Hess EP, Perry JJ, Calder LA, Thiruganasambandamoorthy V, Body R, Jaffe A, et al. Prospective validation of a modified thrombolysis in myocardial infarction risk score in emergency department patients with chest pain and possible acute coronary syndrome. Acad Emerg Med. 2010;17:368-75.
  238. Begg CB. Bias in the assessment of diagnostic tests. Stat Med. 1987;6:411-23.
  239. Elmore JG, Wells CK, Howard DH, Feinstein AR. The impact of clinical history on mammographic interpretations. JAMA. 1997;277:49-52.
  240. Loy CT, Irwig L. Accuracy of diagnostic tests read with and without clinical information: a systematic review. JAMA. 2004;292:1602-9.
  241. Loewen P, Dahir K. Risk of bleeding with oral anticoagulants: an updated systematic review and performance analysis of clinical prediction rules. Ann Hematol. 2011;90:1191-200.
  242. Sheth T, Butler C, Chow B, Chan MT, Mitha A, Nagele P, et al; CTA VISION Investigators. The coronary CT angiography vision protocol: a prospective observational imaging cohort study in patients undergoing non-cardiac surgery. BMJ Open. 2012;2:e001474.
  243. Hippisley-Cox J, Coupland C. Identifying patients with suspected pancreatic cancer in primary care: derivation and validation of an algorithm. Br J Gen Pract. 2012;62:e38-e45.
  244. Holmes JF, Mao A, Awasthi S, McGahan JP, Wisner DH, Kuppermann N. Validation of a prediction rule for the identification of children with intra-abdominal injuries after blunt torso trauma. Ann Emerg Med. 2009;54:528-33.
  245. Peduzzi P, Concato J, Feinstein AR, Holford TR. Importance of events per independent variable in proportional hazards regression analysis. II. Accuracy and precision of regression estimates. J Clin Epidemiol. 1995;48:1503-12.
  246. Peduzzi P, Concato J, Kemper E, Holford TR, Feinstein AR. A simulation study of the number of events per variable in logistic regression analysis. J Clin Epidemiol. 1996;49:1373-9.
  247. Vittinghoff E, McCulloch CE. Relaxing the rule of ten events per variable in logistic and Cox regression. Am J Epidemiol. 2007;165:710-8.
  248. Feinstein AR. Multivariable Analysis. New Haven, CT: Yale University Press; 1996.
  249. Schumacher M, Holländer N, Schwarzer G, Binder H, Sauerbrei W. Prognostic factor studies.. In: Crowley J, Hoering A, eds. Handbook of Statistics in Clinical Oncology. 3rd ed. London: Chapman and Hall/CRC; 2012:415-70.
  250. Courvoisier DS, Combescure C, Agoritsas T, Gayet-Ageron A, Perneger TV. Performance of logistic regression modeling: beyond the number of events per variable, the role of data structure. J Clin Epidemiol. 2011;64:993-1000.
  251. Jinks RC. Sample size for multivariable prognostic models. PhD thesis. University College London 2012.
  252. Steyerberg EW, Vickers AJ, Cook NR, Gerds T, Gonen M, Obuchowski N, et al. Assessing the performance of prediction models: a framework for traditional and novel measures. Epidemiology. 2010;21:128-38.
  253. Steyerberg EW, Calster BV, Pencina MJ. Performance measures for prediction models and markers: evaluation of predictions and classifications. Rev Esp Cardiol (Engl Ed). 2011;64:788-94.
  254. Vergouwe Y, Steyerberg EW, Eijkemans MJ, Habbema JD. Substantial effective sample sizes were required for external validation studies of predictive logistic regression models. J Clin Epidemiol. 2005;58:475-83.
  255. Audigé L, Bhandari M, Kellam J. How reliable are reliability studies of fracture classifications? A systematic review of their methodologies. Acta Orthop Scand. 2004;75:184-94.
  256. Genders TS, Steyerberg EW, Hunink MG, Nieman K, Galema TW, Mollet NR, et al. Prediction model to estimate presence of coronary artery disease: retrospective pooled analysis of existing cohorts. BMJ. 2012;344:e3485.
  257. Thompson DO, Hurtado TR, Liao MM, Byyny RL, Gravitz C, Haukoos JS. Validation of the Simplified Motor Score in the out-of-hospital setting for the prediction of outcomes after traumatic brain injury. Ann Emerg Med. 2011;58:417-25.
  258. Ambler G, Omar RZ, Royston P, Kinsman R, Keogh BE, Taylor KM. Generic, simple risk stratification model for heart valve surgery. Circulation. 2005;112:224-31.
  259. Mackinnon A. The use and reporting of multiple imputation in medical research—a review. J Intern Med. 2010;268:586-93.
  260. Hussain A, Dunn KW. Predicting length of stay in thermal burns: a systematic review of prognostic factors. Burns. 2013;39:1331-40.
  261. Tangri N, Stevens LA, Griffith J, Tighiouart H, Djurdjev O, Naimark D, et al. A predictive model for progression of chronic kidney disease to kidney failure. JAMA. 2011;305:1553-9.
  262. Steyerberg EW, Mushkudiani N, Perel P, Butcher I, Lu J, McHugh GS, et al. Predicting outcome after traumatic brain injury: development and international validation of prognostic scores based on admission characteristics. PLoS Med. 2008;5:e165.
  263. Tammemagi CM, Pinsky PF, Caporaso NE, Kvale PA, Hocking WG, Church TR, et al. Lung cancer risk prediction: Prostate, Lung, Colorectal And Ovarian Cancer Screening Trial models and validation. J Natl Cancer Inst. 2011;103:1058-68.
  264. Altman DG, Lausen B, Sauerbrei W, Schumacher M. Dangers of using “optimal” cutpoints in the evaluation of prognostic factors. J Natl Cancer Inst. 1994;86:829-35.
  265. Royston P, Altman DG, Sauerbrei W. Dichotomizing continuous predictors in multiple regression: a bad idea. Stat Med. 2006;25:127-41.
  266. Royston P, Sauerbrei W. Multivariable Model-Building: A Pragmatic Approach to Regression Analysis Based on Fractional Polynomials for Modelling Continuous Variables. Chichester: John Wiley; 2008.
  267. Veerbeek JM, Kwakkel G, van Wegen EE, Ket JC, Heymans MW. Early prediction of outcome of activities of daily living after stroke: a systematic review. Stroke. 2011;42:1482-8.
  268. Lubetzky-Vilnai A, Ciol M, McCoy SW. Statistical analysis of clinical prediction rules for rehabilitation interventions: current state of the literature. Arch Phys Med Rehabil. 2014;95:188-96.
  269. Steyerberg EW, Vergouwe Y. Towards better clinical prediction models: seven steps for development and an ABCD for validation. Eur Heart J. 2014;35:1925-31.
  270. Ioannidis JP. Why most discovered true associations are inflated. Epidemiology. 2008;19:640-8.
  271. Hrynaszkiewicz I, Norton ML, Vickers AJ, Altman DG. Preparing raw clinical data for publication: guidance for journal editors, authors, and peer reviewers. Trials. 2010;11:9.
  272. Hosmer DW, Lemeshow S. Applied Logistic Regression. New York: Wiley; 2000.
  273. Vittinghoff E. Regression Methods in Biostatistics: Linear, Logistic, Survival, and Repeated Measures Models. New York: Springer; 2005.
  274. Hosmer DW, Lemeshow S, May S. Applied Survival Analysis: Regression Modelling of Time-To-Event Data. Hoboken, NJ: Wiley-Interscience; 2008.
  275. Hastie T, Tibshirani R, Friedman JH. The Elements of Statistical Learning: Data Mining, Inference, and Prediction. New York: Springer; 2001.
  276. Kuhn M, Johnson K. Applied Predictive Modelling. New York: Springer; 2013.
  277. Andersen PK, Skovgaard LT. Regression With Linear Predictors. New York: Springer; 2010.
  278. Hippisley-Cox J, Coupland C, Vinogradova Y, Robson J, May M, Brindle P. Derivation and validation of QRISK, a new cardiovascular disease risk score for the United Kingdom: prospective open cohort study. BMJ. 2007;335:136.
  279. Moreno L, Krishnan JA, Duran P, Ferrero F. Development and validation of a clinical prediction rule to distinguish bacterial from viral pneumonia in children. Pediatr Pulmonol. 2006;41:331-7.
  280. Anderson KM, Odell PM, Wilson PW, Kannel WB. Cardiovascular disease risk profiles. Am Heart J. 1991;121:293-8.
  281. Royston P, Parmar MK. Flexible parametric proportional-hazards and proportional-odds models for censored survival data, with application to prognostic modelling and estimation of treatment effects. Stat Med. 2002;21:2175-97.
  282. Hans D, Durosier C, Kanis JA, Johansson H, Schott-Pethelaz AM, Krieg MA. Assessment of the 10-year probability of osteoporotic hip fracture combining clinical risk factors and heel bone ultrasound: the EPISEM prospective cohort of 12,958 elderly women. J Bone Miner Res. 2008;23:1045-51.
  283. Bohensky MA, Jolley D, Pilcher DV, Sundararajan V, Evans S, Brand CA. Prognostic models based on administrative data alone inadequately predict the survival outcomes for critically ill patients at 180 days post-hospital discharge. J Crit Care. 2012;27:422.
  284. Barrett TW, Martin AR, Storrow AB, Jenkins CA, Harrell FE, Russ S, et al. A clinical prediction model to estimate risk for 30-day adverse events in emergency department patients with symptomatic atrial fibrillation. Ann Emerg Med. 2011;57:1-12.
  285. Krijnen P, van Jaarsveld BC, Steyerberg EW, Man in ‘t Veld AJ, Schalekamp MA, Habbema JD. A clinical prediction rule for renal artery stenosis. Ann Intern Med. 1998;129:705-11.
  286. Smits M, Dippel DW, Steyerberg EW, de Haan GG, Dekker HM, Vos PE, et al. Predicting intracranial traumatic findings on computed tomography in patients with minor head injury: the CHIP prediction rule. Ann Intern Med. 2007;146:397-405.
  287. Moons KG, Donders AR, Steyerberg EW, Harrell FE. Penalized maximum likelihood estimation to directly adjust diagnostic and prognostic prediction models for overoptimism: a clinical example. J Clin Epidemiol. 2004;57:1262-70.
  288. Mantel N. Why stepdown procedures in variable selection? Technometrics. 1970;12:621-5.
  289. Bleeker SE, Moll HA, Steyerberg EW, Donders AR, Derksen-Lubsen G, Grobbee DE, et al. External validation is necessary in prediction research: a clinical example. J Clin Epidemiol. 2003;56:826-32.
  290. Steyerberg EW, Borsboom GJ, van Houwelingen HC, Eijkemans MJ, Habbema JD. Validation and updating of predictive logistic regression models: a study on sample size and shrinkage. Stat Med. 2004;23:2567-86.
  291. van Houwelingen HC, Sauerbrei W. Cross-validation, shrinkage and variable selection in linear regression revisited. Open J Statist. 2013;3:79-102.
  292. Sauerbrei W, Boulesteix AL, Binder H. Stability investigations of multivariable regression models derived from low- and high-dimensional data. J Biopharm Stat. 2011;21:1206-31.
  293. Harrell FE, Lee KL, Califf RM, Pryor DB, Rosati RA. Regression modelling strategies for improved prognostic prediction. Stat Med. 1984;3:143-52.
  294. van Houwelingen JC, LeCessie S. Predictive value of statistical models. Stat Med. 1990;9:1303-25.
  295. Molinaro AM, Simon R, Pfeiffer RM. Prediction error estimation: a comparison of resampling methods. Bioinformatics. 2005;21:3301-7.
  296. Chatfield C. Model uncertainty, data mining and statistical inference. J R Stat Soc A. 1995;158:419-66.
  297. Sauerbrei W, Royston P, Binder H. Selection of important variables and determination of functional form for continuous predictors in multivariable model building. Stat Med. 2007;26:5512-28.
  298. Heymans MW, van Buuren S, Knol DL, van Mechelen W, de Vet HC. Variable selection under multiple imputation using the bootstrap in a prognostic study. BMC Med Res Meth. 2007;7:33.
  299. Castaldi PJ, Dahabreh IJ, Ioannidis JP. An empirical assessment of validation practices for molecular classifiers. Brief Bioinform. 2011;12:189-202.
  300. Varma S, Simon R. Bias in error estimation when using cross-validation for model selection. BMC Bioinformatics. 2006;7:91.
  301. Vach K, Sauerbrei W, Schumacher M. Variable selection and shrinkage: comparison of some approaches. Stat Neerl. 2001;55:53-75.
  302. Lin IF, Chang WP, Liao YN. Shrinkage methods enhanced the accuracy of parameter estimation using Cox models with small number of events. J Clin Epidemiol. 2013;66:743-51.
  303. Ambler G, Seaman S, Omar RZ. An evaluation of penalised survival methods for developing prognostic models with rare events. Stat Med. 2012;31:1150-61.
  304. Yourman LC, Lee SJ, Schonberg MA, Widera EW, Smith AK. Prognostic indices for older adults: a systematic review. JAMA. 2012;307:182-92.
  305. Spelt L, Andersson B, Nilsson J, Andersson R. Prognostic models for outcome following liver resection for colorectal cancer metastases: a systematic review. Eur J Surg Oncol. 2012;38:16-24.
  306. Nam RK, Kattan MW, Chin JL, Trachtenberg J, Singal R, Rendon R, et al. Prospective multi-institutional study evaluating the performance of prostate cancer risk calculators. J Clin Oncol. 2011;29:2959-64.
  307. Meffert PJ, Baumeister SE, Lerch MM, Mayerle J, Kratzer W, Völzke H. Development, external validation, and comparative assessment of a new diagnostic score for hepatic steatosis. Am J Gastroenterol. 2014;109:1404-14.
  308. Collins GS, Altman DG. Identifying patients with undetected colorectal cancer: an independent validation of QCancer (Colorectal). Br J Cancer. 2012;107:260-5.
  309. Royston P, Altman DG. External validation of a Cox prognostic model: principles and methods. BMC Med Res Methodol. 2013;13:33.
  310. Iasonos A, Schrag D, Raj GV, Panageas KS. How to build and interpret a nomogram for cancer prognosis. J Clin Oncol. 2008;26:1364-70.
  311. Zivanovic O, Jacks LM, Iasonos A, Leitao MM, Soslow RA, Veras E, et al. A nomogram to predict postresection 5-year overall survival for patients with uterine leiomyosarcoma. Cancer. 2012;118:660-9.
  312. Kanis JA, Oden A, Johnell O, Johansson H, De Laet C, Brown J, et al. The use of clinical risk factors enhances the performance of BMD in the prediction of hip and osteoporotic fractures in men and women. Osteoporos Int. 2007;18:1033-46.
  313. Papaioannou A, Morin S, Cheung AM, Atkinson S, Brown JP, Feldman S, et al; Scientific Advisory Council of Osteoporosis Canada. 2010 clinical practice guidelines for the diagnosis and management of osteoporosis in Canada: summary. CMAJ. 2010;182:1864-73.
  314. Collins GS, Michaëlsson K. Fracture risk assessment: state of the art, methodologically unsound, or poorly reported? Curr Osteoporos Rep. 2012;10:199-207.
  315. Collins GS, Mallett S, Altman DG. Predicting risk of osteoporotic and hip fracture in the United Kingdom: prospective independent and external validation of QFractureScores. BMJ. 2011;342:d3651.
  316. Järvinen TL, Jokihaara J, Guy P, Alonso-Coello P, Collins GS, Michaëlsson K, et al. Conflicts at the heart of the FRAX tool. CMAJ. 2014;186:165-7.
  317. Balmaña J, Stockwell DH, Steyerberg EW, Stoffel EM, Deffenbaugh AM, Reid JE, et al. Prediction of MLH1 and MSH2 mutations in Lynch syndrome. JAMA. 2006;296:1469-78.
  318. Bruins Slot MH, Rutten FH, van der Heijden GJ, Geersing GJ, Glatz JF, Hoes AW. Diagnosing acute coronary syndrome in primary care: comparison of the physicians’ risk estimation and a clinical decision rule. Fam Pract. 2011;28:323-8.
  319. Suarthana E, Vergouwe Y, Moons KG, de Monchy J, Grobbee D, Heederik D, et al. A diagnostic model for the detection of sensitization to wheat allergens was developed and validated in bakery workers. J Clin Epidemiol. 2010;63:1011-9.
  320. Uno H, Cai T, Pencina MJ, D’Agostino RB, Wei LJ. On the C-statistics for evaluating overall adequacy of risk prediction procedures with censored survival data. Stat Med. 2011;30:1105-17.
  321. Akazawa K. Measures of explained variation for a regression model used in survival analysis. J Med Syst. 1997;21:229-38.
  322. Choodari-Oskooei B, Royston P, Parmar MK. A simulation study of predictive ability measures in a survival model I: explained variation measures. Stat Med. 2012;31:2627-43.
  323. Heller G. A measure of explained risk in the proportional hazards model. Biostatistics. 2012;13:315-25.
  324. Korn EL, Simon R. Measures of explained variation for survival data. Stat Med. 1990;9:487-503.
  325. Mittlböck M, Schemper M. Explained variation for logistic regression. Stat Med. 1996;15:1987-97.
  326. Royston P. Explained variation for survival models. Stata Journal. 2006;6:83-96.
  327. Schemper M. Predictive accuracy and explained variation. Stat Med. 2003;22:2299-308.
  328. Schemper M, Henderson R. Predictive accuracy and explained variation in Cox regression. Biometrics. 2000;56:249-55.
  329. Schemper M, Stare J. Explained variation in survival analysis. Stat Med. 1996;15:1999-2012.
  330. Gerds T, Schumacher M. Consistent estimation of the expected Brier score in general survival models with right-censored event times. Biom J. 2006;6:1029-40.
  331. Rufibach K. Use of Brier score to assess binary predictions. J Clin Epidemiol. 2010;63:938-9.
  332. Gerds TA, Cai T, Schumacher M. The performance of risk prediction models. Biom J. 2008;50:457-79.
  333. Royston P, Sauerbrei W. A new measure of prognostic separation in survival data. Stat Med. 2004;23:723-48.
  334. DeLong ER, DeLong DM, Clarke-Pearson DL. Comparing the areas under two or more correlated receiver operating characteristic curves: a nonparametric approach. Biometrics. 1988;44:837-45.
  335. Demler OV, Pencina MJ, D’Agostino RB. Misuse of DeLong test to compare AUCs for nested models. Stat Med. 2012;31:2577-87.
  336. Moonesinghe SR, Mythen MG, Das P, Rowan KM, Grocott MP. Risk stratification tools for predicting morbidity and mortality in adult patients undergoing major surgery: qualitative systematic review. Anesthesiology. 2013;119:959-81.
  337. Wallace E, Stuart E, Vaughan N, Bennett K, Fahey T, Smith SM. Risk prediction models to predict emergency hospital admission in community-dwelling adults: a systematic review. Med Care. 2014;52:751-65.
  338. Widera C, Pencina MJ, Bobadilla M, Reimann I, Guba-Quint A, Marquardt I, et al. Incremental prognostic value of biomarkers beyond the GRACE (Global Registry of Acute Coronary Events) score and high-sensitivity cardiac troponin T in non-ST-elevation acute coronary syndrome. Clin Chem. 2013;59:1497-505.
  339. Pencina MJ, D’Agostino RB, D’Agostino RB, Vasan RS. Evaluating the added predictive ability of a new marker: from area under the ROC curve to reclassification and beyond. Stat Med. 2008;27:157-72.
  340. Cook NR. Use and misuse of the receiver operating characteristic curve in risk prediction. Circulation. 2007;115:928-35.
  341. Hlatky MA, Greenland P, Arnett DK, Ballantyne CM, Criqui MH, Elkind MS, et al; American Heart Association Expert Panel on Subclinical Atherosclerotic Diseases and Emerging Risk Factors and the Stroke Council. Criteria for evaluation of novel markers of cardiovascular risk: a scientific statement from the American Heart Association. Circulation. 2009;119:2408-16.
  342. Cook NR. Assessing the incremental role of novel and emerging risk factors. Curr Cardiovasc Risk Rep. 2010;4:112-9.
  343. Vickers AJ, Cronin AM, Begg CB. One statistical test is sufficient for assessing new predictive markers. BMC Med Res Methodol. 2011;11:13.
  344. Cook NR, Ridker PM. Advances in measuring the effect of individual predictors of cardiovascular risk: the role of reclassification measures. Ann Intern Med. 2009;150:795-802.
  345. Cook NR, Paynter NP. Performance of reclassification statistics in comparing risk prediction models. Biom J. 2011;53:237-58.
  346. Cook NR. Clinically relevant measures of fit? A note of caution. Am J Epidemiol. 2012;176:488-91.
  347. Pencina MJ, D’Agostino RB, Pencina KM, Janssens AC, Greenland P. Interpreting incremental value of markers added to risk prediction models. Am J Epidemiol. 2012;176:473-81.
  348. Pencina MJ, D’Agostino RB, Vasan RS. Statistical methods for assessment of added usefulness of new biomarkers. Clin Chem Lab Med. 2010;48:1703-11.
  349. Van Calster B, Vickers AJ, Pencina MJ, Baker SG, Timmerman D, Steyerberg EW. Evaluation of markers and risk prediction models: overview of relationships between NRI and decision-analytic measures. Med Decis Making. 2013;33:490-501.
  350. Hilden J, Gerds TA. A note on the evaluation of novel biomarkers: do not rely on integrated discrimination improvement and net reclassification index. Stat Med. 2014;33:3405-14.
  351. Pepe MS. Problems with risk reclassification methods for evaluating prediction models. Am J Epidemiol. 2011;173:1327-35.
  352. Mihaescu R, van Zitteren M, van Hoek M, Sijbrands EJ, Uitterlinden AG, Witteman JC, et al. Improvement of risk prediction by genomic profiling: reclassification measures versus the area under the receiver operating characteristic curve. Am J Epidemiol. 2010;172:353-61.
  353. Mühlenbruch K, Heraclides A, Steyerberg EW, Joost HG, Boeing H, Schulze MB. Assessing improvement in disease prediction using net reclassification improvement: impact of risk cut-offs and number of risk categories. Eur J Epidemiol. 2013;28:25-33.
  354. Pepe M, Fang J, Feng Z, Gerds T, Hilden J. The Net Reclassification Index (NRI): a Misleading Measure of Prediction Improvement with Miscalibrated or Overfit Models. UW Biostatistics Working Paper Series. Working Paper 392. Madison, WI: University of Wisconsin; 2013.
  355. Vickers AJ, Pepe M. Does the net reclassification improvement help us evaluate models and markers? Ann Intern Med. 2014;160:136-7.
  356. Hilden J. Commentary: On NRI, IDI, and “good-looking” statistics with nothing underneath. Epidemiology. 2014;25:265-7.
  357. Leening MJ, Vedder MM, Witteman JCM, Pencina MJ, Steyerberg EW. Net reclassification improvement: computation, interpretation, and controversies: a literature review and clinician’s guide. Ann Intern Med. 2014;160:122-31.
  358. Al-Radi OO, Harrell FE, Caldarone CA, McCrindle BW, Jacobs JP, Williams MG, et al. Case complexity scores in congenital heart surgery: a comparative study of the Aristotle Basic Complexity score and the Risk Adjustment in Congenital Heart Surgery (RACHS-1) system. J Thorac Cardiovasc Surg. 2007;133:865-75.
  359. Localio AR, Goodman S. Beyond the usual prediction accuracy metrics: reporting results for clinical decision making. Ann Intern Med. 2012;157:294-5.
  360. Van Calster B, Vickers AJ. Calibration of risk prediction models: impact on decision-analytic performance. Med Decis Making. 2014 Aug 25 [Epub ahead of print].
  361. Vickers AJ. Decision analysis for the evaluation of diagnostic tests, prediction models and molecular markers. Am Stat. 2008;62:314-20.
  362. Vickers AJ, Cronin AM, Kattan MW, Gonen M, Scardino PT, Milowsky MI, et al; International Bladder Cancer Nomogram Consortium. Clinical benefits of a multivariate prediction model for bladder cancer: a decision analytic approach. Cancer. 2009;115:5460-9.
  363. Vickers AJ, Elkin EB. Decision curve analysis: a novel method for evaluating prediction models. Med Decis Making. 2006;26:565-74.
  364. Baker SG. Putting risk prediction in perspective: relative utility curves. J Natl Cancer Inst. 2009;101:1538-42.
  365. Baker SG, Cook NR, Vickers A, Kramer BS. Using relative utility curves to evaluate risk prediction. J R Stat Soc Ser A Stat Soc. 2009;172:729-48.
  366. Baker SG, Kramer BS. Evaluating a new marker for risk prediction: decision analysis to the rescue. Discov Med. 2012;14:181-8.
  367. Moons KG, de Groot JA, Linnet K, Reitsma JB, Bossuyt PM. Quantifying the added value of a diagnostic test or marker. Clin Chem. 2012;58:1408-17.
  368. Held U, Bové DS, Steurer J, Held L. Validating and updating a risk model for pneumonia—a case study. BMC Med Res Methodol. 2012;12:99.
  369. Cindolo L, Chiodini P, Gallo C, Ficarra V, Schips L, Tostain J, et al. Validation by calibration of the UCLA integrated staging system prognostic model for nonmetastatic renal cell carcinoma after nephrectomy. Cancer. 2008;113:65-71.
  370. Baart AM, Atsma F, McSweeney EN, Moons KG, Vergouwe Y, de Kort WL. External validation and updating of a Dutch prediction model for low hemoglobin deferral in Irish whole blood donors. Transfusion. 2014;54 3 Pt 2 762-9.
  371. Chalmers I, Glasziou P. Avoidable waste in the production and reporting of research evidence. Lancet. 2009;374:86-9.
  372. Janssen KJ, Vergouwe Y, Kalkman CJ, Grobbee DE, Moons KG. A simple method to adjust clinical prediction models to local circumstances. Can J Anaesth. 2009;56:194-201.
  373. van Houwelingen HC. Validation. calibration, revision and combination of prognostic survival models. Stat Med. 2000;19:3401-15.
  374. Manola J, Royston P, Elson P, McCormack JB, Mazumdar M, Négrier S, et al; International Kidney Cancer Working Group. Prognostic model for survival in patients with metastatic renal cell carcinoma: results from the International Kidney Cancer Working Group. Clin Cancer Res. 2011;17:5443-50.
  375. Krupp NL, Weinstein G, Chalian A, Berlin JA, Wolf P, Weber RS. Validation of a transfusion prediction model in head and neck cancer surgery. Arch Otolaryngol Head Neck Surg. 2003;129:1297-302.
  376. Morra E, Cesana C, Klersy C, Barbarano L, Varettoni M, Cavanna L, et al. Clinical characteristics and factors predicting evolution of asymptomatic IgM monoclonal gammopathies and IgM-related disorders. Leukemia. 2004;18:1512-7.
  377. Kelder JC, Cramer MJ, van Wijngaarden J, van Tooren R, Mosterd A, Moons KG, et al. The diagnostic value of physical examination and additional testing in primary care patients with suspected heart failure. Circulation. 2011;124:2865-73.
  378. Haybittle JL, Blamey RW, Elston CW, Johnson J, Doyle PJ, Campbell FC, et al. A prognostic index in primary breast cancer. Br J Cancer. 1982;45:361-6.
  379. Tang EW, Wong CK, Herbison P. Global Registry of Acute Coronary Events (GRACE) hospital discharge risk score accurately predicts long-term mortality post acute coronary syndrome. Am Heart J. 2007;153:29-35.
  380. Bang H, Edwards AM, Bomback AS, Ballantyne CM, Brillon D, Callahan MA, et al. Development and validation of a patient self-assessment score for diabetes risk. Ann Intern Med. 2009;151:775-83.
  381. Chen L, Magliano DJ, Balkau B, Colagiuri S, Zimmet PZ, Tonkin AM, et al. AUSDRISK: an Australian Type 2 Diabetes Risk Assessment Tool based on demographic, lifestyle and simple anthropometric measures. Med J Aust. 2010;192:197-202.
  382. Starmans R, Muris JW, Fijten GH, Schouten HJ, Pop P, Knottnerus JA. The diagnostic value of scoring models for organic and non-organic gastrointestinal disease, including the irritable-bowel syndrome. Med Decis Making. 1994;14:208-16.
  383. Tzoulaki I, Seretis A, Ntzani EE, Ioannidis JP. Mapping the expanded often inappropriate use of the Framingham Risk Score in the medical literature. J Clin Epidemiol. 2014;67:571-7.
  384. Harrison DA, Rowan KM. Outcome prediction in critical care: the ICNARC model. Curr Opin Crit Care. 2008;14:506-12.
  385. Kanaya AM, WasselFyr CL, de Rekeneire N, Schwartz AV, Goodpaster BH, Newman AB, et al. Predicting the development of diabetes in older adults: the derivation and validation of a prediction rule. Diabetes Care. 2005;28:404-8.
  386. Stephens JW, Ambler G, Vallance P, Betterridge DJ, Humphries SE, Hurel SJ. Cardiovascular risk and diabetes. Are the methods of risk prediction satisfactory? Eur J Cardiovasc Prev Rehabil. 2004;11:521-8.
  387. Cogswell R, Kobashigawa E, McGlothlin D, Shaw R, De Marco T. Validation of the Registry to Evaluate Early and Long-Term Pulmonary Arterial Hypertension Disease Management (REVEAL) pulmonary hypertension prediction model in a unique population and utility in the prediction of long-term survival. J Heart Lung Transplant. 2012;31:1165-70.
  388. Eagle KA, Lim MJ, Dabbous OH, Pieper KS, Goldberg RJ, Van de Werf F, et al; GRACE Investigators. A validated prediction model for all forms of acute coronary syndrome: estimating the risk of 6-month postdischarge death in an international registry. JAMA. 2004;291:2727-33.
  389. Geersing GJ, Erkens PM, Lucassen WA, Büller HR, Cate HT, Hoes AW, et al. Safe exclusion of pulmonary embolism using the Wells rule and qualitative d-dimer testing in primary care: prospective cohort study. BMJ. 2012;345:e6564.
  390. Collins GS, Altman DG. Identifying patients with undetected gastro-oesophageal cancer in primary care: external validation of QCancer® (Gastro-Oesophageal). Eur J Cancer. 2013;49:1040-8.
  391. de Vin T, Engels B, Gevaert T, Storme G, De Ridder M. Stereotactic radiotherapy for oligometastatic cancer: a prognostic model for survival. Ann Oncol. 2014;25:467-71.
  392. Bernasconi P, Klersy C, Boni M, Cavigliano PM, Calatroni S, Giardini I, et al. World Health Organization classification in combination with cytogenetic markers improves the prognostic stratification of patients with de novo primary myelodysplastic syndromes. Br J Haematol. 2007;137:193-205.
  393. Schemper M, Smith TL. A note on quantifying follow-up in studies of failure time. Control Clin Trials. 1996;17:343-6.
  394. Echouffo-Tcheugui JB, Woodward M, Kengne AP. Predicting a post-thrombolysis intracerebral hemorrhage: a systematic review. J Thromb Haemost. 2013;11:862-71.
  395. Le Gal G, Righini M, Roy PM, Sanchez O, Aujesky D, Bounameaux H, et al. Prediction of pulmonary embolism in the emergency department: the revised Geneva score. Ann Intern Med. 2006;144:165-71.
  396. Davis JL, Worodria W, Kisembo H, Metcalfe JZ, Cattamanchi A, Kawooya M, et al. Clinical and radiographic factors do not accurately diagnose smear-negative tuberculosis in HIV-infected inpatients in Uganda: a cross-sectional study. PLoS One. 2010;5:e9859.
  397. Ji R, Shen H, Pan Y, Wang P, Liu G, Wang Y, et al; China National Stroke Registry (CNSR) Investigators. Risk score to predict gastrointestinal bleeding after acute ischemic stroke. BMC Gastroenterol. 2014;14:130.
  398. Marrugat J, Subirana I, Ramos R, Vila J, Marin-Ibanez A, Guembe MJ, et al; FRESCO Investigators. Derivation and validation of a set of 10-year cardiovascular risk predictive functions in Spain: the FRESCO Study. Prev Med. 2014;61:66-74.
  399. Hensgens MP, Dekkers OM, Goorhuis A, LeCessie S, Kuijper EJ. Predicting a complicated course of Clostridium difficile infection at the bedside. Clin Microbiol Infect. 2014;20:O301-8.
  400. Hak E, Wei F, Nordin J, Mullooly J, Poblete S, Nichol KL. Development and validation of a clinical prediction rule for hospitalization due to pneumonia or influenza or death during influenza epidemics among community-dwelling elderly persons. J Infect Dis. 2004;189:450-8.
  401. Vandenbroucke JP, von Elm E, Altman DG, Gøtzsche PC, Mulrow CD, Pocock SJ, et al; STROBE Initiative. Strengthening the Reporting of Observational Studies in Epidemiology (STROBE): explanation and elaboration. Epidemiology. 2007;18:805-35.
  402. Schnabel RB, Sullivan LM, Levy D, Pencina MJ, Massaro JM, D’Agostino RB, et al. Development of a risk score for atrial fibrillation (Framingham Heart Study): a community-based cohort study. Lancet. 2009;373:739-45.
  403. Lang TA, Altman DG. Basic statistical reporting for articles published in clinical medical journals: the SAMPL guidelines.. In: Smart P, Maisonneuve H, Polderman A, eds. Science Editors’ Handbook. European Association of Science Editors; 2013.
  404. Binder H, Sauerbrei W, Royston P. Comparison between splines and fractional polynomials for multivariable model building with continuous covariates: a simulation study with continuous response. Stat Med. 2013;32:2262-77.
  405. Harrison DA, Parry GJ, Carpenter JR, Short A, Rowan K. A new risk prediction model for critical care: the Intensive Care National Audit & Research Centre (ICNARC) model. Crit Care Med. 2007;35:1091-8.
  406. Brady AR, Harrison D, Black S, Jones S, Rowan K, Pearson G, et al. Assessment and optimization of mortality prediction tools for admissions to pediatric intensive care in the United Kingdom. Pediatrics. 2006;117:e733-42.
  407. Kuijpers T, van der Windt DA, van der Heijden GJ, Twisk JW, Vergouwe Y, Bouter LM. A prediction rule for shoulder pain related sick leave: a prospective cohort study. BMC Musculoskelet Disord. 2006;7:97.
  408. Pocock SJ, McCormack V, Gueyffier F, Boutitie F, Fagard RH, Boissel JP. A score for predicting risk of death from cardiovascular disease in adults with raised blood pressure, based on individual patient data from randomised controlled trials. BMJ. 2001;323:75-81.
  409. Casikar I, Lu C, Reid S, Condous G. Prediction of successful expectant management of first trimester miscarriage: development and validation of a new mathematical model. Aust N Z J Obstet Gynaecol. 2013;53:58-63.
  410. Godoy G, Chong KT, Cronin A, Vickers A, Laudone V, Touijer K, et al. Extent of pelvic lymph node dissection and the impact of standard template dissection on nomogram prediction of lymph node involvement. Eur Urol. 2011;60:195-201.
  411. Bradburn MJ, Clark TG, Love SB, Altman DG. Survival analysis part II: multivariate data analysis—an introduction to concepts and methods. Br J Cancer. 2003;89:431-6.
  412. Wells P, Anderson D, Rodger M, Ginsberg J, Kearon C, Gent M, et al. Derivation of a simple clinical model to categorize patients probability of pulmonary embolism: increasing the models utility with the SimpliRED d-dimer. Thromb Haemost. 2000;83:416-20.
  413. Cole TJ. Scaling and rounding regression-coefficients to integers. Appl Stat. 1993;42:261-8.
  414. Sullivan LM, Massaro JM, D’Agostino RB. Presentation of multivariate data for clinical use: the Framingham study risk score functions. Stat Med. 2004;23:1631-60.
  415. Moons KG, Harrell FE, Steyerberg EW. Should scoring rules be based on odds ratios or regression coefficients? J Clin Epidemiol. 2002;55:1054-5.
  416. Nijman RG, Vergouwe Y, Thompson M, van Veen M, van Meurs AH, van der Lei J, et al. Clinical prediction model to aid emergency doctors managing febrile children at risk of serious bacterial infections: diagnostic study. BMJ. 2013;346:f1706.
  417. Royston P, Altman DG. Visualizing and assessing discrimination in the logistic regression model. Stat Med. 2010;29:2508-20.
  418. Taş U, Steyerberg EW, Bierma-Zeinstra SM, Hofman A, Koes BW, Verhagen AP. Age, gender and disability predict future disability in older people: the Rotterdam Study. BMC Geriatrics. 2011;11:22.
  419. Hanley JA, McNeil BJ. A method of comparing the areas under receiver operating characteristic curves derived from the same cases. Radiology. 1983;148:839-43.
  420. Pencina MJ, D’Agostino RB, Steyerberg EW. Extensions of net reclassification improvement calculations to measure usefulness of new biomarkers. Stat Med. 2011;30:11-21.
  421. Pepe MS, Janes H. Reporting standards are needed for evaluations of risk reclassification. Int J Epidemiol. 2011;40:1106-8.
  422. Vickers AJ, Cronin AM. Traditional statistical methods for evaluating prediction models are uninformative as to clinical value: towards a decision analytic framework. Semin Oncol. 2010;37:31-8.
  423. Sanders MS, de Jonge RC, Terwee CB, Heymans MW, Koomen I, Ouburg S, et al. Addition of host genetic variants in a prediction rule for post meningitis hearing loss in childhood: a model updating study. BMC Infect Dis. 2013;13:340.
  424. Kramer AA, Zimmerman JE. A predictive model for the early identification of patients at risk for a prolonged intensive care unit length of stay. BMC Med Inform Decis Mak. 2010;10:27.
  425. Neely D, Feinglass J, Wallace WH. Developing a predictive model to assess applicants to an internal medicine residency. J Grad Med Educ. 2010;2:129-32.
  426. Ioannidis JP. Limitations are not properly acknowledged in the scientific literature. J Clin Epidemiol. 2007;60:324-9.
  427. Horton R. The hidden research paper. JAMA. 2002;287:2775-8.
  428. Docherty M, Smith R. The case for structuring the discussion of scientific papers. BMJ. 1999;318:1224-5.
  429. Ioannidis JP. Research needs grants, funding and money—missing something? Eur J Clin Invest. 2012;42:349-51.
  430. Janssens AC, Ioannidis JP, Bedrosian S, Boffetta P, Dolan SM, Dowling N, et al. Strengthening the reporting of genetic risk prediction studies (GRIPS): explanation and elaboration. Eur J Clin Invest. 2011;41:1010-35.
  431. Collins GS. Cardiovascular disease risk prediction in the UK. Primary Care Cardiovascular Journal. 2013;6:125-8.
  432. Collins GS, Altman DG. An independent external validation and evaluation of QRISK cardiovascular risk prediction: a prospective open cohort study. BMJ. 2009;339:b2584.
  433. Collins GS, Altman DG. An independent and external validation of QRISK2 cardiovascular disease risk score: a prospective open cohort study. BMJ. 2010;340:c2442.
  434. Perry JJ, Sharma M, Sivilotti ML, Sutherland J, Symington C, Worster A, et al. Prospective validation of the ABCD2 score for patients in the emergency department with transient ischemic attack. CMAJ. 2011;183:1137-45.
  435. Clarke M, Chalmers I. Discussion sections in reports of controlled trials published in general medical journals: islands in search of continents? JAMA. 1998;280:280-2.
  436. Ioannidis JP, Polyzos NP, Trikalinos TA. Selective discussion and transparency in microarray research findings for cancer outcomes. Eur J Cancer. 2007;43:1999-2010.
  437. Van den Bosch JE, Moons KG, Bonsel GJ, Kalkman CJ. Does measurement of preoperative anxiety have added value for predicting postoperative nausea and vomiting? Anesth Analg. 2005;100:1525-32.
  438. Kappen TH, Moons KG, van Wolfswinkel L, Kalkman CJ, Vergouwe Y, van Klei WA. Impact of risk assessments on prophylactic antiemetic prescription and the incidence of postoperative nausea and vomiting: a cluster-randomized trial. Anesthesiology. 2014;120:343-54.
  439. Poldervaart JM, Reitsma JB, Koffijberg H, Backus BE, Six AJ, Doevendands PA, et al. The impact of the HEART risk score in the early assessment of patients with acute chest pain: design of a stepped wedge, cluster randomised trial. BMC Cardiovasc Disord. 2013;13:77.
  440. Hutchings HA, Evans BA, Fitzsimmons D, Harrison J, Heaven M, Huxley P, et al. Predictive risk stratification model: a progressive cluster-randomised trial in chronic conditions management (PRISMATIC) research protocol. Trials. 2013;14:301.
  441. Ioannidis JP. More than a billion people taking statins? Potential implications of the new cardiovascular guidelines. JAMA. 2014;311:463-4.
  442. Ioannidis JP, Tzoulaki I. What makes a good predictor? The evidence applied to coronary artery calcium score. JAMA. 2010;303:1646-7.
  443. Mrdovic I, Savic L, Krljanac G, Asanin M, Perunicic J, Lasica R, et al. Predicting 30-day major adverse cardiovascular events after primary percutaneous coronary intervention. The RISK-PCI score. Int J Cardiol. 2013;162:220-7.
  444. Ridker PM, Paynter NP, Rifai N, Gaziano JM, Cook NR. C- reactive protein and parental history improve global cardiovascular risk prediction: the Reynolds Risk Score for men. Circulation. 2008;118:2243-51.
  445. World Medical Association. Declaration of Geneva. Accessed at www.wma.net/en/30publications/10policies/g1/ on 24 June 2008.
  446. Council for International Organizations of Medical Sciences.. International ethical guidelines for biomedical research involving human subjects. Bull Med Ethics. 2002;182:17-23.
  447. Arnold DH, Gebretsadik T, Abramo TJ, Sheller JR, Resha DJ, Hartert TV. The Acute Asthma Severity Assessment Protocol (AASAP) study: objectives and methods of a study to develop an acute asthma clinical prediction rule. Emerg Med J. 2012;29:444-50.
  448. Azagra R, Roca G, Encabo G, Prieto D, Aguye A, Zwart M, et al. Prediction of absolute risk of fragility fracture at 10 years in a Spanish population: validation of the WHO FRAX tool in Spain. BMC Musculoskelet Disord. 2011;12:30.
  449. Collins SP, Lindsell CJ, Jenkins CA, Harrell FE, Fermann GJ, Miller KF, et al. Risk stratification in acute heart failure: rationale and design of the STRATIFY and DECIDE studies. Am Heart J. 2012;164:825-34.
  450. Hafkamp-de Groen E, Lingsma HF, Caudri D, Wijga A, Jaddoe VW, Steyerberg EW, et al. Predicting asthma in preschool children with asthma symptoms: study rationale and design. BMC Pulm Med. 2012;12:65.
  451. Hess EP, Wells GA, Jaffe A, Stiell IG. A study to derive a clinical decision rule for triage of emergency department patients with chest pain: design and methodology. BMC Emerg Med. 2008;8:3.
  452. Horisberger T, Harbarth S, Nadal D, Baenziger O, Fischer JE. G-CSF and IL-8 for early diagnosis of sepsis in neonates and critically ill children—safety and cost effectiveness of a new laboratory prediction model: study protocol of a randomized controlled trial [ISRCTN91123847]. Crit Care. 2004;8:R443-50.
  453. Liman TG, Zietemann V, Wiedmann S, Jungehuelsing GJ, Endres M, Wollenweber FA, et al. Prediction of vascular risk after stroke—protocol and pilot data of the Prospective Cohort with Incident Stroke (PROSCIS). Int J Stroke. 2013;8:484-90.
  454. Mann DM, Kannry JL, Edonyabo D, Li AC, Arciniega J, Stulman J, et al. Rationale, design, and implementation protocol of an electronic health record integrated clinical prediction rule (iCPR) randomized trial in primary care. Implement Sci. 2011;6:109.
  455. Meijs MF, Bots ML, Vonken EJ, Cramer MJ, Melman PG, Velthuis BK, et al. Rationale and design of the SMART Heart study: a prediction model for left ventricular hypertrophy in hypertension. Neth Heart J. 2007;15:295-8.
  456. Mrdovic I, Savic L, Perunicic J, Asanin M, Lasica R, Marinkovic J, et al. Development and validation of a risk scoring model to predict net adverse cardiovascular outcomes after primary percutaneous coronary intervention in patients pretreated with 600 mg clopidogrel: rationale and design of the RISK-PCI study. J Interv Cardiol. 2009;22:320-8.
  457. Nee RJ, Vicenzino B, Jull GA, Cleland JA, Coppieters MW. A novel protocol to develop a prediction model that identifies patients with nerve-related neck and arm pain who benefit from the early introduction of neural tissue management. Contemp Clin Trials. 2011;32:760-70.
  458. Pita-Fernández S, Pértega-Diaz S, Valdés-Cañedo F, Seijo-Bestilleiro R, Seoane-Pillado T, Fernández-Rivera C, et al. Incidence of cardiovascular events after kidney transplantation and cardiovascular risk scores: study protocol. BMC Cardiovasc Disord. 2011;11:2.
  459. Sanfelix-Genoves J, Peiro S, Sanfelix-Gimeno G, Giner V, Gil V, Pascual M, et al. Development and validation of a population-based prediction scale for osteoporotic fracture in the region of Valencia, Spain: the ESOSVAL-R study. BMC Public Health. 2010;10:153.
  460. Siebeling L, terRiet G, van der Wal WM, Geskus RB, Zoller M, Muggensturm P, et al. ICE COLD ERIC—International collaborative effort on chronic obstructive lung disease: exacerbation risk index cohorts — study protocol for an international COPD cohort study. BMC Pulm Med. 2009;9:15.
  461. Canadian CT Head and C-Spine (CCC) Study Group. Canadian C-Spine Rule study for alert and stable trauma patients: I. Background and rationale. CJEM. 2002;4:84-90.
  462. Canadian CT Head and C-Spine (CCC) Study Group. Canadian C-Spine Rule study for alert and stable trauma patients: II. Study objectives and methodology. CMAJ. 2002;4:185-93.
  463. van Wonderen KE, van der Mark LB, Mohrs J, Geskus RB, van der Wal WM, van Aalderen WM, et al. Prediction and treatment of asthma in preschool children at risk: study design and baseline data of a prospective cohort study in general practice (ARCADE). BMC Pulm Med. 2009;9:13.
  464. Waldron CA, Gallacher J, van der Weijden T, Newcombe R, Elwyn G. The effect of different cardiovascular risk presentation formats on intentions, understanding and emotional affect: a randomised controlled trial using a web-based risk formatter (protocol). BMC Med Inform Decis Mak. 2010;10:41.
  465. Laine C, Guallar E, Mulrow C, Taichman DB, Cornell JE, Cotton D, et al. Closing in on the truth about recombinant human bone morphogenetic protein-2: evidence synthesis, data sharing, peer review, and reproducible research. Ann Intern Med. 2013;158:916-8.
  466. Peng RD. Reproducible research and Biostatistics. Biostatistics. 2009;10:405-8.
  467. Keiding N. Reproducible research and the substantive context. Biostatistics. 2010;11:376-8.
  468. Vickers AJ. Whose data set is it anyway? Sharing raw data from randomized trials. Trials. 2006;7:15.
  469. Riley RD, Abrams KR, Sutton AJ, Lambert PC, Jones DR, Heney D, et al. Reporting of prognostic markers: current problems and development of guidelines for evidence-based practice in the future. Br J Cancer. 2003;88:1191-8.
  470. Riley RD, Sauerbrei W, Altman DG. Prognostic markers in cancer: the evolution of evidence from single studies to meta-analysis, and beyond. Br J Cancer. 2009;100:1219-29.
  471. Riley RD, Simmonds MC, Look MP. Evidence synthesis combining individual patient data and aggregate data: a systematic review identified current practice and possible methods. J Clin Epidemiol. 2007;60:431-9.
  472. Hemingway H, Riley RD, Altman DG. Ten steps towards improving prognosis research. BMJ. 2009;339:b4184.
  473. Groves T. BMJ policy on data sharing. BMJ. 2010;340:c564.
  474. Marchionni L, Afsari B, Geman D, Leek JT. A simple and reproducible breast cancer prognostic test. BMC Genomics. 2013;14:336.
  475. Loder E, Groves T, Macauley D. Registration of observational studies. BMJ. 2010;340:c950.
  476. Chavers S, Fife D, Wacholtz M, Stang P, Berlin J. Registration of Observational Studies: perspectives from an industry-based epidemiology group. Pharmacoepidemiol Drug Saf. 2011;20:1009-13.
  477. Should protocols for observational studies be registered? Lancet. 2010;375:348.
  478. Altman DG. The time has come to register diagnostic and prognostic research. Clin Chem. 2014;60:580-2.
  479. The registration of observational studies—when metaphors go bad. Epidemiology. 2010;21:607-9.
  480. Sørensen HT, Rothman KJ. The prognosis of research. BMJ. 2010;340:c703.
  481. Vandenbroucke JP. Registering observational research: second thoughts. Lancet. 2010;375:982-3.
  482. Williams RJ, Tse T, Harlan WR, Zarin DA. Registration of observational studies: Is it time? CMAJ. 2010;182:1638-42.
  483. Lenzer J. Majority of panelists on controversial new cholesterol guideline have current or recent ties to drug manufacturers. BMJ. 2013;347:f6989.
  484. Lenzer J, Hoffman JR, Furberg CD, Ioannidis JP; Guideline Panel Review Working Group. Ensuring the integrity of clinical practice guidelines: a tool for protecting patients. BMJ. 2013;347:f5535.
  485. Simera I. Get the content right: following reporting guidelines will make your research paper more complete, transparent and usable. J Pak Med Assoc. 2013;63:283-5.
  486. Simera I, Kirtley S, Altman DG. Reporting clinical research: guidance to encourage accurate and transparent research reporting. Maturitas. 2012;72:84-7.
  487. Simera I, Moher D, Hirst A, Hoey J, Schulz KF, Altman DG. Transparent and accurate reporting increases reliability, utility, and impact of your research: reporting guidelines and the EQUATOR Network. BMC Med. 2010;8:24.
  488. Moher D, Liberati A, Tetzlaff J, Altman DG; PRISMA Group. Preferred reporting items for systematic reviews and meta-analyses: the PRISMA statement. Ann Intern Med. 2009;151:264-9.
  489. Little J, Higgins JP, Ioannidis JP, Moher D, Gagnon F, von Elm E, et al; STrengthening the REporting of Genetic Association Studies. STrengthening the REporting of Genetic Association Studies (STREGA): an extension of the STROBE statement. PLoS Med. 2009;6:e22.
  490. Kilkenny C, Browne W, Cuthill IC, Emerson M, Altman DG; NC3Rs Reporting Guidelines Working Group. Animal research: reporting in vivo experiments: the ARRIVE guidelines. J Gene Med. 2010;12:561-3.
  491. Gagnier JJ, Kienle G, Altman DG, Moher D, Sox H, Riley D; CARE Group. The CARE guidelines: consensus-based clinical case reporting guideline development. J Med Case Rep. 2013;7:223.
  492. Marshall A, Altman DG, Royston P, Holder RL. Comparison of techniques for handling missing covariate data within prognostic modelling studies: a simulation study. BMC Med Res Methodol. 2010;10:7.
  493. Little RJ, Rubin DB. Statistical Analysis With Missing Data. Hoboken, NJ: Wiley; 2002.
  494. Rubin DB. Multiple Imputation for Nonresponse in Surveys. New York: J. Wiley & Sons; 1987.
  495. White IR, Royston P, Wood AM. Multiple imputation using chained equations: issues and guidance for practice. Stat Med. 2011;30:377-99.
  496. Harel O, Pellowski J, Kalichman S. Are we missing the importance of missing values in HIV prevention randomized clinical trials? Review and recommendations. AIDS Behav. 2012;16:1382-93.
  497. Schafer JL. Multiple imputation: a primer. Stat Methods Med Res. 1999;8:3-15.
  498. Marshall A, Altman DG, Holder RL, Royston P. Combining estimates of interest in prognostic modelling studies after multiple imputation: current practice and guidelines. BMC Med Res Methodol. 2009;9:57.
  499. van Buuren S, Boshuizen HC, Knook DL. Multiple imputation of missing blood pressure covariates in survival analysis. Stat Med. 1999;18:681-94.
  500. Wood AM, White IR, Royston P. How should variable selection be performed with multiply imputed data? Stat Med. 2008;27:3227-46.
  501. Turner EL, Dobson JE, Pocock SJ. Categorisation of continuous risk factors in epidemiological publications: a survey of current practice. Epidemiol Perspect Innov. 2010;7:9.
  502. van Walraven C, Hart RG. Leave ‘em alone—why continuous variables should be analyzed as such. Neuroepidemiology. 2008;30:138-9.
  503. Vickers AJ, Lilja H. Cutpoints in clinical chemistry: time for fundamental reassessment. Clin Chem. 2009;55:15-7.
  504. Bennette C, Vickers A. Against quantiles: categorization of continuous variables in epidemiologic research, and its discontents. BMC Med Res Methodol. 2012;12:21.
  505. Dawson NV, Weiss R. Dichotomizing continuous variables in statistical analysis: a practice to avoid. Med Decis Making. 2012;32:225-6.
  506. Royston P, Altman DG. Regression using fractional polynomials of continuous covariates: parsimonious parametric modelling. Appl Stat. 1994;43:429-67.
  507. Harrell FE, Lee KL, Pollock BG. Regression models in clinical studies: determining relationships between predictors and response. J Natl Cancer Inst. 1988;80:1198-202.
  508. Schumacher M, Binder H, Gerds T. Assessment of survival prediction models based on microarray data. Bioinformatics. 2007;23:1768-74.
  509. Subramanian J, Simon R. Gene expression-based prognostic signatures in lung cancer: ready for clinical use? J Natl Cancer Inst. 2010;102:464-74.
  510. Dupuy A, Simon RM. Critical review of published microarray studies for cancer outcome and guidelines on statistical analysis and reporting. J Natl Cancer Inst. 2007;99:147-57.
  511. Boulesteix AL. Validation in bioinformatics and molecular medicine. Brief Bioinform. 2011;12:187-8.
  512. Jelizarow M, Guillemot V, Tenenhaus A, Strimmer K, Boulesteix AL. Over-optimism in bioinformatics: an illustration. Bioinformatics. 2010;26:1990-8.
  513. Vickers AJ, Cronin AM. Everything you always wanted to know about evaluating prediction models (but were too afraid to ask). Urology. 2010;76:1298-301.
  514. Austin PC, Steyerberg EW. Graphical assessment of internal and external calibration of logistic regression models by using loess smoothers. Stat Med. 2014;33:517-35.
  515. Crowson CS, Atkinson EJ, Therneau TM. Assessing calibration of prognostic risk scores. Stat Methods Med Res. 2014 Apr 7 [Epub ahead of print]..
  516. Vach W. Calibration of clinical prediction rules does not just assess bias. J Clin Epidemiol. 2013;66:1296-301.
  517. Miller ME, Hui SL, Tierney WM. Validation techniques for logistic-regression models. Stat Med. 1991;10:1213-26.
  518. Cox DR. Two further applications of a model for binary regression. Biometrika. 1958;45:562-5.
  519. D’Agostino RB, Nam BH. Evaluation of the performance of survival analysis models: discrimination and calibration measures.. In: Balakrishnan N, Rao CR, eds. Handbook of Statistics, Survival Methods. Amsterdam: Elsevier; 2004:1-25.
  520. Grønnesby JK, Borgan O. A method for checking regression models in survival analysis based on the risk score. Lifetime Data Anal. 1996;2:315-28.
  521. Bertolini G, D’Amico R, Nardi D, Tinazzi A, Apolone G. One model, several results: the paradox of the Hosmer-Lemeshow goodness-of-fit test for the logistic regression model. J Epidemiol Biostat. 2000;5:251-3.
  522. Kramer AA, Zimmerman JE. Assessing the calibration of mortality benchmarks in critical care: the Hosmer-Lemeshow test revisited. Crit Care Med. 2007;35:2052-6.
  523. Marcin JP, Romano PS. Size matters to a model’s fit. Crit Care Med. 2007;35:2212-3.
  524. Bannister CA, Poole CD, Jenkins-Jones S, Morgan CL, Elwyn G, Spasic I, et al. External validation of the UKPDS risk engine in incident type 2 diabetes: a need for new type 2 diabetes-specific risk equations. Diab Care. 2014;37:537-45.
  525. Van Hoorde K, Vergouwe Y, Timmerman D, Van Huffel S, Steyerberg EW, Van Calster B. Assessing calibration of multinomial risk prediction models. Stat Med. 2014;33:2585-96.
  526. Cook NR. Statistical evaluation of prognostic versus diagnostic models: beyond the ROC curve. Clin Chem. 2008;54:17-23.
  527. Pencina MJ, D’Agostino RB, Song L. Quantifying discrimination of Framingham risk functions with different survival C statistics. Stat Med. 2012;31:1543-53.
  528. Van Calster B, Van Belle V, Vergouwe Y, Timmerman D, Van Huffel S, Steyerberg EW. Extending the c-statistic to nominal polytomous outcomes: the polytomous discrimination index. Stat Med. 2012;31:2610-26.
  529. Wolbers M, Blanche P, Koller MT, Witteman JC, Gerds TA. Concordance for prognostic models with competing risks. Biostatistics. 2014;15:526-39.
  530. Pencina MJ, D’Agostino RB, Demler OV. Novel metrics for evaluating improvement in discrimination: net reclassification and integrated discrimination improvement for normal variables and nested models. Stat Med. 2012;31:101-13.
  531. Bradburn MJ, Clark TG, Love SB, Altman DG. Survival analysis part III: multivariate data analysis—choosing a model and assessing its adequacy and fit. Br J Cancer. 2003;89:605-11.
  532. Moons KG, de Groot JA, Bouwmeester W, Vergouwe Y, Mallett S, Altman DG, et al. Critical appraisal and data extraction for the systematic reviews of prediction modelling studies: the CHARMS checklist. PLoS Med. 2014;11:e1001744.

Supplementary files

Supplementary Files
Action
1. JATS XML
2. Box A. Schematic representation of research on diagnostic and predictive predictive models

Download (297KB)
3. Fig. 1. Types of predictive model studies covered by the TRIPOD guidelines.

Download (838KB)
4. Fig. 2. The choice of predictors in a study on the development of a multivariate predictive model.

Download (490KB)
5. Fig. 3. An example of a drawing: a diagram of a change in the composition of participants.

Download (244KB)
6. Fig. 4. An example of a drawing: a scheme for changing the composition of participants.

Download (252KB)
7. Fig. 5. An example of a drawing. An illustrated scoring system for determining predictive probabilities in individuals.

Download (436KB)
8. Fig. 6. An example of a drawing. Graphical scoring scheme for determining predicted probabilities in individuals

Download (730KB)
9. Fig. 7. An example of a drawing. Nomogram and its use for individual probability prediction.

Download (105KB)
10. Fig. 8. An example of a drawing. Calibration curve with c-index and predicted probability distribution for individuals with and without outcome (coronary heart disease).

Download (132KB)
11. Fig. 9. An example of a drawing. Characteristic curve with marks of predicted risks.

Download (91KB)
12. Fig. 10. An example of a drawing. Decision curve analysis.

Download (156KB)

Copyright (c) 2022 Eco-vector

Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

This website uses cookies

You consent to our cookies if you continue to use our website.

About Cookies