<i>An Instructional Guide for Peer Reviewers of Biomedical Manuscripts</i>

<b>Recommended References</b>

<b>Reporting in clinical trials - descriptive and inferential statistics (including problems with p-values)</b>

1. International Committee of Medical Journal Editors. Uniform requirements for manuscripts submitted to biomedical journals. <I>JAMA</I> 1997;277:927-934. Available at <a href=http://jama.ama-assn.org/info/auinst_req.html target=_blank>http://jama.ama-assn.org/info/auinst_req.html</a>.

2. Bailar JC, Mosteller F. Guidelines for statistical reporting in articles for medical journals. Amplifications and explanations. <i>Ann Intern Med</i> 1988;108:266-73.

3. Altman, D. Statistics in medical journals: some recent trends. <i>Statist Med</i> 2000;19:3275-3289.

4. Greenland S. Randomization, statistics, and causal inference. <i>Epidemiology</i> 1990;1:421-429.

5. Maclure M, Schneeweis S. Causation of bias: the episcope. <i>Epidemiology</i> 2001;12:114-122.

6. Goodman SN, Berlin JA. The use of predicted confidence intervals when planning experiments and the misuse of power when interpreting results. <i>Ann Intern Med </i>1994;121:200-206.

7. Braitman LE. Confidence intervals assess both clinical significance and statistical significance. <i>Ann Intern Med </i>1991;114:515-517.

8. Gallagher, EJ. Threshold for decerebrate genuflection. <i>Acad Emerg Med</i>1999;6:1084-1087.

9. Goodman SN. Toward evidence-based medical statistics. 1: the p-value fallacy. <i>Ann Intern Med </i>1999;130:995-1004.

10. Sterne JAC, Smith GD. Sifting trough the evidence – what’s wrong with significance tests? <I>BMJ</I> 2001;322:226-231.

11. Pocock SJ, Hughes MD, Lee RJ. Statistical problems in the reporting of clinical trials. A survey of three medical journals. <I>NEJM</I> 1987;317:426-432.

12. Hart A. Mann-Whitney test is not just a test of medians: differences in spread can be important. <I>BMJ</I> 2001;323 391-393.

13. Browner WS, Newman TB. Are all significant p values created equal? The analogy between diagnostic tests and clinical research. <I>JAMA</I> 1987;257:24592463.

14. Leamer, EE Specification searches: ad hoc inference with non-experimental data New York: Wiley, 1978.

15. Modern <i>Epidemiology</i> 2nd ed. Kenneth J. Rothman, Sander Greenland. Philadelphia : Lippincott-Raven, 1998. Bayesian Analysis

16. Goodman SN. Toward evidence-based medical statistics. 2: The Bayes factor. <i>Ann Intern Med </i>1999;130:1005-1013.

17. Spiegelhalter DJ, Myles JP, Jones DR, Abrams KR. An introduction to bayesian methods in health technology assessment. <I>BMJ</I> 1999;319:508-512.

18. Brophy JM, Joseph L. Placing trials in context using Bayesian analysis. GUSTO revisited by Reverend Bayes. <I>JAMA</I> 1995;273:871-875.

19. Ashby D, Smith AFM. Evidence-based medicine as Bayesian decision-making. <i>Statist Med</i> 2000;19:3291-3305.

20. Lehmann HP, Goodman SN. Bayesian communication: a clinically significant paradigm for electronic publication. <i>J Am Med Inform Assoc </i>2000;7:254-266. Number Needed to Treat (NNT)

21. Cordell WH. Number needed to treat (NNT). Ann Emerg Med 1999;33:433-436.

22. Chatellier G, Zapletal E, Lemaitre D, Menard J, Degoulet P. The number needed to treat: a clinically useful nomogram in its proper context. <I>BMJ</I> 1996;312:426429.

23. Laupacis A, Sackett DL, Roberts RS. An assessment of clinically useful measures of the consequences of treatment. <I>NEJM</I> 1988;26:1728-1733.

24. Smeeth L, Haines A, Ebrahim S. Numbers needed to treat derived from metaanalyses – sometimes informative, usually misleading. <I>BMJ</I> 1999;318:15481551.

25. Altman DG, Andersen PK. Calculating the number needed to treat for trials where the outcome is time to an event. <I>BMJ</I> 1999;319:1492-1495.

<b>Baseline Comparisons, Multiple Comparisons and Subgroup Analysis</b>

26. Altman DG, Dore CJ. Randomisation and baseline comparisons in clinical trials. <i>Lancet</i> 1990;335:149-153.

27. Yusuf S, Wittes J, Probstfield J, Tyroler HA. Analysis and interpretation of treatment effects in subgroups of patients in randomized clinical trials. <I>JAMA</I> 1991;266:93-98.

28. Oxman AD, Guyatt GH. A consumer's guide to subgroup analyses. <i>Ann Intern Med </i>1992;116:78-84.

29. Smith DG, Clemens J, Crede W, Harvey M, Gracely EJ. Impact of multiple comparisons in randomized clinical trials. <i>Am J Med</i> 1987;83:545-550.

30. Greenland S, Rothman K. Multiple Comparisons in, Fundamentals of Epidemiologic Data Analysis, in: Modern <i>Epidemiology</i>. 2 nd ed. Philadelphia, PA: Lippincott, Williams & Wilkins, 1998; 225-229.

31. Mills JL. Data torturing. <I>NEJM</I> 1993;329;1196-1199.

<b>Multivariate models</b>

32. Braitman LE, Davidoff F. Predicting clinical states in individual patients. <i>Ann Intern Med </i>1996;125:406-412.

33. Concato J, Feinstein AR, Holford TR. The risk of determining risk with multivariate models. <i>Ann Intern Med </i>1993;118:201-210.

<b>Chart Review Methods</b>

34. Gilbert EH, Lowenstein SR, Koziol-McLain J, Barta DC, Steiner J. Chart reviews in emergency medicine research: where are the methods. <I>Ann Emerg Med</I> 1996;27:305-308.

<b>Reporting Agreement and Inter-rater Reliability</b>

35. Bland JM, and Altman DG. Statistical methods for assessing agreement between two methods of clinical measurement. The <i>Lancet</i> 1986;8476:307-310.

36. Guggenmoos-Holzmann I. The meaning of kappa: probabilistic concepts of reliability and validity revisited. <I>J Clin Epid</I> 1996;49:775-782.

37. Bloch DA, Kraemer HC. 2 x 2 kappa coefficients: measures of agreement or association. <i>Biometrics</i> 1989;45:269-287.

<b>Unit of Analysis</b>

38. Whiting-O’Keefe QE, Henke C, Simborg DW. Choosing the correct unit of analysis in <i>Medical Care</i>experiments. <i>Medical Care</i>1984;22:1101-1114.

<b>Graphing</b>

39. Briscoe MH. Preparing Scientific Illustrations: A Guide to Better Posters, Presentations, and Publications. 2 nd edition. New York, NY: Springer-Verlag; 1996.

40. Iverson C, Flanagin, A, Fontanarosa PB, Glass RM, Glitman P, Lantz JC, Meyer HS, et al. eds. Manuscript Preparation, in: American Medical Association manual of style: a guide for authors and editors. 9 th ed. Maryland: Williams & Wilkins, 1998; 7-85.

41. Tufte ER: <I>Visual Display of Quantitative Information</I>. Cheshire, CT: Graphic Press, 1983.

42. Cleveland WS: <I>Visualizing Data</I>. Summit, NJ: Hobart press, 1993.

43. McNeil D. On graphing paired data. <I>The American Statistician</I> 1992;46:307-311.

44. Schriger DL, Cooper RJ. Achieving graphical excellence: suggestions and methods for creating high-quality visual displays of experimental data. <I>Ann EM</I> 2001; 37:75-87.

<b>Randomized Controlled Trials</b>

45. Begg C, Cho M, Eastwood S, Horton R, Moher D, Olkin I, Pitkin, et al. Improving the quality of reporting of randomized controlled trials. The CONSORT statement. <I>JAMA</I> 1996;276:637-639.

46. Moher D, Schulz KF, Altman DG, for the CONSORT Group. The CONSORT statement: revised recommendations for improving the quality of reports of parallel-group randomised trials. <i>Lancet</i> 2001;357:1191-1194.

<b>Randomized Controlled Trials vs Observational Studies</b>

47. McKee M, Britton A, Black N, McPherson K, Sanderson C, Bain C. Interpreting the evidence: choosing between randomized and non-randomized studies. <I>BMJ</I> 1999;319:312-315.

48. Benson K, Hartz AJ. A comparison of observational studies and randomized, controlled trials. <I>NEJM</I> 2000;342:1878-1886.

49. Concato J, Shah N, Horwitz RI. Randomized, controlled trials, observational studies, and the hierarchy of research designs. <I>NEJM</I> 2000;342:1887-1892.

<b>Meta-analysis and Systematic Reviews – (reporting, how to use, and issues of quality scoring) </b>

50. Moher D, Cook DJ, Eastwood S, Olkin I, Rennie D, Stroup DF, for the QUOROM group. Improving the quality of reports of meta-analyses of randomized controlled trials: the QUOROM statement. <i>Lancet</i> 1999;354:18961900.

51. Stroup DF, Berlin JA, Morton SC, Olkin I, Williamson GD, Rennie D, Moher D, et al for the Meta-analysis Of Observational Studies in <i>Epidemiology</i> (MOOSE) Group. Meta-analysis of observational studies in <i>Epidemiology</i>. A proposal for reporting. <I>JAMA</I> 2000;283:2008-2012.

52. Cook DJ, Mulrow CD, Haynes RB. Systematic reviews: synthesis of best evidence for clinical decisions. <I>Ann Intern Med</I>. 1997;126:376-380.

53. Lau J, Ioannidis JPA, Schmid CH. Quantitative Synthesis in Systematic Reviews. <i>Ann Intern Med </i>1997;127:820-826.

54. Oxman AD, Cook DJ, Guyatt GH, for the Evidence-Based Medicine Working Group. Users’ guides to the medical literature VI. How to use an overview. <I>JAMA</I> 1994;272:1367-1371.

55. Juni P, Witschi A, Bloch R, Egger M. The hazards of scoring the quality of clinical trials for meta-analysis. <I>JAMA</I> 1999;282:1054-1060.

56. Greenland S. Quality scores are useless and potentially misleading. Am J <i>Epidemiology</i> 1994;140:300-301.

<b>Cost-effectiveness and Economic Analyses</b>

57. Drummond MF, Jefferson TO on behalf of the <I>BMJ</I> Economic Evaluation Working Party. Guidelines for authors and peer reviewers of economic submissions to the <I>BMJ</I>. <I>BMJ</I> 1996;313:275-283.

58. Detsky AS, Naglie IG. A clinician's guide to cost-effectiveness analysis. <i>Ann Intern Med </i>1990;113:147-154.

59. Russell LB, Gold MR, Siegel JE, Daniels N, Weinstein MC, for the Panel on Cost-Effectiveness in Health and Medicine. The role of cost-effectiveness analysis in health and medicine. <I>JAMA</I> 1996;276:1172-1177.

60. Weinstein MC, Siegel JE, Gold MR, Kamlet MS, Russell LB for the Panel on Cost-Effectiveness in Health and Medicine. Recommendations of the panel on cost-effectiveness in health and medicine. <I>JAMA</I> 1996;276:1253-1258.

61. Siegel JE, Weinstein MC, Russell LB, Gold MR for the Panel on CostEffectiveness in Health and Medicine. Recommendations for reporting costeffectiveness analyses. <I>JAMA</I> 1996;276:1339-1341.

62. Drummond MF, Richardson S, O’Brien BJ, Levine M, Heyland D, for the Evidence-Based Medicine Working Group. Users’ guides to the medical literature XIII. How to use an article on economic analysis of clinical practice. A. Are the results of the study valid? <I>JAMA</I> 1997;277:1552-1557.

63. O’Brien BJ, Heyland D, Richardson S, Levine M, Drummond MF, for the Evidence-Based Medicine Working Group. Users’ guides to the medical literature XIII. How to use an article on economic analysis of clinical practice. B. What are the results and will they help me in caring for my patients? <I>JAMA</I> 1997;277:1802-1806.

64. Nixon J, Khan KS, Kleijnen J. Summarising economic evaluations in systematic reviews: a new approach. <I>BMJ</I> 2001;322:1596-1598.

<b>Diagnostic Tests</b>

65. Jaeschke R, Guyatt G, Sackett DL for the Evidence-Based Medicine Working Group. Users’ guides to the medical literature III. How to use an article about a diagnostic test. A. Are the results of the study valid? <I>JAMA</I> 1994;271:389-391.

66. Jaeschke R, Guyatt GH, Sackett DL for the Evidence-Based Medicine Working Group. Users’ guides to the medical literature III. How to use an article about a diagnostic test. B. What are the results and will they help me in caring for my patients? <I>JAMA</I> 1994;271:703-707.

67. McMaster Clinical <i>Epidemiology</i> Rounds. How to read clinical journals: II. To learn about a diagnostic test. <I>CMAJ</I> 1981;124:703-720.

68. Arkin CF, Wachtel MS. How many patients are necessary to assess test performance? <I>JAMA</I> 1990;263:275-278.

69. Reid MC, Lachs MS, Feinstein AR. Use of methodological standards in diagnostic test research. Getting better but still not good. <I>JAMA</I> 1995;274:645651.

70. Mower WR. Evaluating bias and variability in diagnostic test results. <I>Ann EM</I> 1999;33:85-91.

71. Lijmer JG, Mol BW, Heisterkamp A, Bonsel GJ, Prins MH, van der Meulen JHP, Bossuyt PMM. Empirical evidence of design-related bias in studies of diagnostic tests. <I>JAMA</I> 1999;282:1061-1066.

72. Buderer NFM. Statistical methodology: I. Incorporating the prevalence of disease into the sample size calculation for sensitivity and specificity. <i>Acad Emerg Med</i>1996;3:895-900.

73. Radack KL, Rouan G, Hedges J. The likelihood ratio. An improved measure for reporting and evaluating diagnostic test results. <I>Arch Pathol Lab Med</I> 1986;110:689-693.

74. Hayden SR, Brown MD. Likelihood ratio: a powerful tool for incorporating the results of a diagnostic test into clinical decisionmaking. <I>Ann Emerg Med</I> 1999;33:575-580.

<b>Qualitative Research</b>

75. Green J, Britten N. Qualitative research and evidence based medicine. <I>BMJ</I> 1998;316:1230-1232.

76. Mays N, Pope C. Qualitative research in health care. Assessing quality in qualitative research. <I>BMJ</I> 2000;320:50-52.

77. Pope C, Ziebland S, Mays N. Qualitative research in health care. Analysing qualitative data. <I>BMJ</I> 2000;320:114-116.

78. Giacomini MK, Cook DJ for the Evidence-Based Medicine Working Group. Users’ guides to the medical literature XXIII. Qualitative research in health care. A. Are the results of the study valid? <I>JAMA</I> 2000;284:357-362.

79. Giacomini MK, Cook DJ for the Evidence-Based Medicine Working Group. Users’ guides to the medical literature XXIII. Qualitative research in health care. B. What are the results and how do they help me care for my patients? <I>JAMA</I> 2000;284:478-482.

<b>Clinical Decision or Prediction Rules</b>

80. Stiell IG, Wells GA. Methodologic standards for the development of clinical decision rules in emergency medicine. <I>Annals EM</I> 1999;33:437-447.

<b>Clinical Guidelines</b>

81. Hayward RSA, Wilson MC, Tunis SR, Bass EB, Guyatt G, for the EvidenceBased Medicine Working Group. Users’ guides to the medical literature VIII. How to use clinical practice guidelines. A. Are the recommendations valid? <I>JAMA</I> 1995;274:570-574.

82. Wilson MC, Hayward RSA, Tunis SR, Bass EB, Guyatt G, for the EvidenceBased Medicine Working Group. Users’ guides to the medical literature VIII. How to use clinical practice guidelines. B. What are the recommendations and will they help you in caring for your patients? <I>JAMA</I> 1995;274:1630-1632.

83. Guyatt GH, Sackett DL, Sinclair JC, Hayward R, Cook DJ, Cook RJ, for the Evidence-Based Medicine Working Group. Users’ guides to the medical literature. IX. A method for grading health care recommendations. <I>JAMA</I> 1995;274:1800-1804.

84. Harbour R, Miller J for the Scottish Intercollegiate Guidelines Network Grading Review Group. A new system for grading recommendations in evidence based guidelines. <I>BMJ</I> 2001;323:334-336.

85. Shaneyfelt TM, Mayo-Smith MF, Rothwangl J. Are guidelines following guidelines? The methodological quality of clinical practice guidelines in the peerreviewed medical literature. <I>JAMA</I> 1999;281:1900-1905.

86. Woolf SH, Grol R, Hutchinson A, Eccles M, Grimshaw J. Clinical guidelines. Potential benefits, limitations, and harms of clinical guidelines. <I>BMJ</I> 1999;318:527-530.

87. Shekelle PG, Woolf SH, Eccles M, Grimshaw J. Clinical guidelines. Developing guidelines. <I>BMJ</I> 1999;318:593-596.

88. Feder G, Eccles M, Grol R, Griffiths C, Grimshaw J. Clinical guidelines. Using clinical guidelines. <I>BMJ</I> 1999;318:728-730.

<b>Quality of life research</b>

89. Muldoon MF, Barger SD, Flory JD, Manuck SB. What are quality of life measurements measuring? <I>BMJ</I> 1998;316:542-545.

90. Guyatt GH, Naylor D, Juniper E, Heyland DK, Jaeschke R, Cook DJ, for the Evidence-Based Medicine Working Group. Users’ guides to the medical literature XII. How to use an article about health-related quality of life. <I>JAMA</I> 1997;277:1232-1237.

91. Staquet MJ, Hays RD, Fayers PM. <I>Quality of Life Assessment in Clinical Trials. Methods and Practice</I>. New York: Oxford University Press;1998.

92. Fischer D, Stewart AL, Bloch DA, Lorig K, Laurent D, Holman H. Capturing the patient’s view of change as a clinical outcome measure. <I>JAMA</I> 1999;282:11571162.

93. Coons SJ, Rao S, Keininger DL, Hays RD. A comparative review of generic quality-of-life instruments. <I>Pharmacoeconomics</I> 2000;17:13-35.