[1] | Canadian Institutes of Health Research (2006) Randomized controlled trials registration/application checklist (12/2006). Available: http://www.cihr-irsc.gc.ca/e/documents/r?ct_reg_e.pdf. Accessed 26 May 2009.
|
[2] | Young C, Horton R (2005) Putting clinical trials into context. Lancet 366: 107–108.
|
[3] | Moher D, Tetzlaff J, Tricco AC, Sampson M, Altman DG (2007) Epidemiology and reporting characteristics of systematic reviews. PLoS Med 4: e78. doi:10.1371/journal.pmed.0040078.
|
[4] | Dixon E, Hameed M, Sutherland F, Cook DJ, Doig C (2005) Evaluating meta-analyses in the general surgical literature: A critical appraisal. Ann Surg 241: 450–459.
|
[5] | Hemels ME, Vicente C, Sadri H, Masson MJ, Einarson TR (2004) Quality assessment of meta-analyses of RCTs of pharmacotherapy in major depressive disorder. Curr Med Res Opin 20: 477–484.
|
[6] | Jin W, Yu R, Li W, Youping L, Ya L, et al. (2008) The reporting quality of meta-analyses improves: A random sampling study. J Clin Epidemiol 61: 770–775.
|
[7] | Moher D, Simera I, Schulz KF, Hoey J, Altman DG (2008) Helping editors, peer reviewers and authors improve the clarity, completeness and transparency of reporting health research. BMC Med 6: 13.
|
[8] | Moher D, Cook DJ, Eastwood S, Olkin I, Rennie D, et al. (1999) Improving the quality of reports of meta-analyses of randomised controlled trials: The QUOROM statement. Quality of Reporting of Meta-analyses. Lancet 354: 1896–1900.
|
[9] | Green S, Higgins JPT, Alderson P, Clarke M, Mulrow CD, et al. (2008) Chapter 1: What is a systematic review? In: Higgins JPT, Green S, editors. Cochrane handbook for systematic reviews of interventions version 5.0.0 [updated February 2008]. The Cochrane Collaboration. Available: http://www.cochrane-handbook.org/. Accessed 26 May 2009.
|
[10] | Guyatt GH, Oxman AD, Vist GE, Kunz R, Falck-Ytter Y, et al. (2008) GRADE: An emerging consensus on rating quality of evidence and strength of recommendations. BMJ 336: 924–926.
|
[11] | Higgins JPT, Altman DG (2008) Chapter 8: Assessing risk of bias in included studies. In: Higgins JPT, Green S, editors. Cochrane handbook for systematic reviews of interventions version 5.0.0 [updated February 2008]. The Cochrane Collaboration. Available: http://www.cochrane-handbook.org/. Accessed 26 May 2009.
|
[12] | Moher D, Liberati A, Tetzlaff J, Altman DG, The PRISMA Group (2008) Preferred reporting items for systematic reviews and meta-analyses: The PRISMA Statement. PLoS Med 6: e1000097. 10.1371/journal.pmed.1000097.
|
[13] | Atkins D, Fink K, Slutsky J (2005) Better information for better health care: The Evidence-based Practice Center program and the Agency for Healthcare Research and Quality. Ann Intern Med 142: 1035–1041.
|
[14] | Helfand M, Balshem H (2009) Principles for developing guidance: AHRQ and the effective health-care program. J Clin Epidemiol. In press.
|
[15] | Higgins JPT, Green S (2008) Cochrane handbook for systematic reviews of interventions version 5.0.0 [updated February 2008]. The Cochrane Collaboration. Available: http://www.cochrane-handbook.org/. Accessed 26 May 2009.
|
[16] | Centre for Reviews and Dissemination (2009) Systematic reviews: CRD's guidance for undertaking reviews in health care. York: University of York. Available: http://www.york.ac.uk/inst/crd/systemati?c_reviews_book.htm. Accessed 26 May 2009.
|
[17] | Altman DG, Schulz KF, Moher D, Egger M, Davidoff F, et al. (2001) The revised CONSORT statement for reporting randomized trials: Explanation and elaboration. Ann Intern Med 134: 663–694.
|
[18] | Bossuyt PM, Reitsma JB, Bruns DE, Gatsonis CA, Glasziou PP, et al. (2003) The STARD statement for reporting studies of diagnostic accuracy: Explanation and elaboration. Clin Chem 49: 7–18.
|
[19] | Vandenbroucke JP, von Elm E, Altman DG, G?tzsche PC, Mulrow CD, et al. (2007) Strengthening the Reporting of Observational Studies in Epidemiology (STROBE): Explanation and elaboration. PLoS Med 4: e297. doi:10.1371/journal.pmed.0040297.
|
[20] | Barker A, Maratos EC, Edmonds L, Lim E (2007) Recurrence rates of video-assisted thoracoscopic versus open surgery in the prevention of recurrent pneumothoraces: A systematic review of randomised and non-randomised trials. Lancet 370: 329–335.
|
[21] | Bjelakovic G, Nikolova D, Gluud LL, Simonetti RG, Gluud C (2007) Mortality in randomized trials of antioxidant supplements for primary and secondary prevention: Systematic review and meta-analysis. JAMA 297: 842–857.
|
[22] | Montori VM, Wilczynski NL, Morgan D, Haynes RB (2005) Optimal search strategies for retrieving systematic reviews from Medline: Analytical survey. BMJ 330: 68.
|
[23] | Bischoff-Ferrari HA, Willett WC, Wong JB, Giovannucci E, Dietrich T, et al. (2005) Fracture prevention with vitamin D supplementation: A meta-analysis of randomized controlled trials. JAMA 293: 2257–2264.
|
[24] | Hopewell S, Clarke M, Moher D, Wager E, Middleton P, et al. (2008) CONSORT for reporting randomised trials in journal and conference abstracts. Lancet 371: 281–283.
|
[25] | Hopewell S, Clarke M, Moher D, Wager E, Middleton P, et al. (2008) CONSORT for reporting randomized controlled trials in journal and conference abstracts: Explanation and elaboration. PLoS Med 5: e20. doi:10.1371/journal.pmed.0050020.
|
[26] | Haynes RB, Mulrow CD, Huth EJ, Altman DG, Gardner MJ (1990) More informative abstracts revisited. Ann Intern Med 113: 69–76.
|
[27] | Mulrow CD, Thacker SB, Pugh JA (1988) A proposal for more informative abstracts of review articles. Ann Intern Med 108: 613–615.
|
[28] | Froom P, Froom J (1993) Deficiencies in structured medical abstracts. J Clin Epidemiol 46: 591–594.
|
[29] | Hartley J (2000) Clarifying the abstracts of systematic literature reviews. Bull Med Libr Assoc 88: 332–337.
|
[30] | Hartley J, Sydes M, Blurton A (1996) Obtaining information accurately and quickly: Are structured abstract more efficient? J Infor Sci 22: 349–356.
|
[31] | Pocock SJ, Hughes MD, Lee RJ (1987) Statistical problems in the reporting of clinical trials. A survey of three medical journals. N Engl J Med 317: 426–432.
|
[32] | Taddio A, Pain T, Fassos FF, Boon H, Ilersich AL, et al. (1994) Quality of nonstructured and structured abstracts of original research articles in the British Medical Journal, the Canadian Medical Association Journal and the Journal of the American Medical Association. CMAJ 150: 1611–1615.
|
[33] | Harris KC, Kuramoto LK, Schulzer M, Retallack JE (2009) Effect of school-based physical activity interventions on body mass index in children: A meta-analysis. CMAJ 180: 719–726.
|
[34] | James MT, Conley J, Tonelli M, Manns BJ, MacRae J, et al. (2008) Meta-analysis: Antibiotics for prophylaxis against hemodialysis catheter-related infections. Ann Intern Med 148: 596–605.
|
[35] | Counsell C (1997) Formulating questions and locating primary studies for inclusion in systematic reviews. Ann Intern Med 127: 380–387.
|
[36] | Gotzsche PC (2000) Why we need a broad perspective on meta-analysis. It may be crucially important for patients. BMJ 321: 585–586.
|
[37] | Grossman P, Niemann L, Schmidt S, Walach H (2004) Mindfulness-based stress reduction and health benefits. A meta-analysis. J Psychosom Res 57: 35–43.
|
[38] | Brunton G, Green S, Higgins JPT, Kjeldstr?m M, Jackson N, et al. (2008) Chapter 2: Preparing a Cochrane review. In: Higgins JPT, Green S, editors. Cochrane handbook for systematic reviews of interventions version 5.0.0 [updated February 2008]. The Cochrane Collaboration. Available: http://www.cochrane-handbook.org/. Accessed 26 May 2009.
|
[39] | Sutton AJ, Abrams KR, Jones DR, Sheldon TA, Song F (1998) Systematic reviews of trials and other studies. Health Technol Assess 2: 1–276.
|
[40] | Ioannidis JP, Rosenberg PS, Goedert JJ, O'Brien TR (2002) Commentary: Meta-analysis of individual participants' data in genetic epidemiology. Am J Epidemiol 156: 204–210.
|
[41] | Stewart LA, Clarke MJ (1995) Practical methodology of meta-analyses (overviews) using updated individual patient data. Cochrane Working Group. Stat Med 14: 2057–2079.
|
[42] | Chan AW, Hrobjartsson A, Haahr MT, G?tzsche PC, Altman DG (2004) Empirical evidence for selective reporting of outcomes in randomized trials: Comparison of protocols to published articles. JAMA 291: 2457–2465.
|
[43] | Dwan K, Altman DG, Arnaiz JA, Bloom J, Chan AW, et al. (2008) Systematic review of the empirical evidence of study publication bias and outcome reporting bias. PLoS ONE 3: e3081. doi:10.1371/journal.pone.0003081.
|
[44] | Silagy CA, Middleton P, Hopewell S (2002) Publishing protocols of systematic reviews: Comparing what was done to what was planned. JAMA 287: 2831–2834.
|
[45] | Centre for Reviews and Dissemination (2009) Research projects. York: University of York. Available: http://www.crd.york.ac.uk/crdweb. Accessed 26 May 2009.
|
[46] | The Joanna Briggs Institute (2009) Protocols & work in progress. Available: http://www.joannabriggs.edu.au/pubs/syst?ematic_reviews_prot.php. Accessed 26 May 2009.
|
[47] | Bagshaw SM, McAlister FA, Manns BJ, Ghali WA (2006) Acetylcysteine in the prevention of contrast-induced nephropathy: A case study of the pitfalls in the evolution of evidence. Arch Intern Med 166: 161–166.
|
[48] | Biondi-Zoccai GG, Lotrionte M, Abbate A, Testa L, Remigi E, et al. (2006) Compliance with QUOROM and quality of reporting of overlapping meta-analyses on the role of acetylcysteine in the prevention of contrast associated nephropathy: Case study. BMJ 332: 202–209.
|
[49] | Sacks HS, Berrier J, Reitman D, Ancona-Berk VA, Chalmers TC (1987) Meta-analyses of randomized controlled trials. N Engl J Med 316: 450–455.
|
[50] | Schroth RJ, Hitchon CA, Uhanova J, Noreddin A, Taback SP, et al. (2004) Hepatitis B vaccination for patients with chronic renal failure. Cochrane Database Syst Rev. Issue 3: CD003775. doi:10.1002/14651858.CD003775.pub2.
|
[51] | Egger M, Zellweger-Zahner T, Schneider M, Junker C, Lengeler C, et al. (1997) Language bias in randomised controlled trials published in English and German. Lancet 350: 326–329.
|
[52] | Gregoire G, Derderian F, Le Lorier J (1995) Selecting the language of the publications included in a meta-analysis: Is there a Tower of Babel bias? J Clin Epidemiol 48: 159–163.
|
[53] | Jüni P, Holenstein F, Sterne J, Bartlett C, Egger M (2002) Direction and impact of language bias in meta-analyses of controlled trials: Empirical study. Int J Epidemiol 31: 115–123.
|
[54] | Moher D, Pham B, Klassen TP, Schulz KF, Berlin JA, et al. (2000) What contributions do languages other than English make on the results of meta-analyses? J Clin Epidemiol 53: 964–972.
|
[55] | Pan Z, Trikalinos TA, Kavvoura FK, Lau J, Ioannidis JP (2005) Local literature bias in genetic epidemiology: An empirical evaluation of the Chinese literature. PLoS Med 2: e334. doi:10.1371/journal.pmed.0020334.
|
[56] | Hopewell S, McDonald S, Clarke M, Egger M (2007) Grey literature in meta-analyses of randomized trials of health care interventions. Cochrane Database Syst Rev. Issue 2: MR000010. doi:10.1002/14651858.MR000010.pub3.
|
[57] | Melander H, Ahlqvist-Rastad J, Meijer G, Beermann B (2003) Evidence b(i)ased medicine—Selective reporting from studies sponsored by pharmaceutical industry: Review of studies in new drug applications. BMJ 326: 1171–1173.
|
[58] | Sutton AJ, Duval SJ, Tweedie RL, Abrams KR, Jones DR (2000) Empirical assessment of effect of publication bias on meta-analyses. BMJ 320: 1574–1577.
|
[59] | Gotzsche PC (2006) Believability of relative risks and odds ratios in abstracts: Cross sectional study. BMJ 333: 231–234.
|
[60] | Bhandari M, Devereaux PJ, Guyatt GH, Cook DJ, Swiontkowski MF, et al. (2002) An observational study of orthopaedic abstracts and subsequent full-text publications. J Bone Joint Surg Am 84-A: 615–621.
|
[61] | Rosmarakis ES, Soteriades ES, Vergidis PI, Kasiakou SK, Falagas ME (2005) From conference abstract to full paper: Differences between data presented in conferences and journals. Faseb J 19: 673–680.
|
[62] | Toma M, McAlister FA, Bialy L, Adams D, Vandermeer B, et al. (2006) Transition from meeting abstract to full-length journal article for randomized controlled trials. JAMA 295: 1281–1287.
|
[63] | Saunders Y, Ross JR, Broadley KE, Edmonds PM, Patel S (2004) Systematic review of bisphosphonates for hypercalcaemia of malignancy. Palliat Med 18: 418–431.
|
[64] | Shojania KG, Sampson M, Ansari MT, Ji J, Doucette S, et al. (2007) How quickly do systematic reviews go out of date? A survival analysis. Ann Intern Med 147: 224–233.
|
[65] | Bergerhoff K, Ebrahim S, Paletta G (2004) Do we need to consider ‘in process citations’ for search strategies? 12th Cochrane Colloquium; 2–6 October 2004; Ottawa, Ontario, Canada. Available: http://www.cochrane.org/colloquia/abstra?cts/ottawa/P-039.htm. Accessed 26 May 2009.
|
[66] | Zhang L, Sampson M, McGowan J (2006) Reporting of the role of expert searcher in Cochrane reviews. Evid Based Libr Info Pract 1: 3–16.
|
[67] | Turner EH, Matthews AM, Linardatos E, Tell RA, Rosenthal R (2008) Selective publication of antidepressant trials and its influence on apparent efficacy. N Engl J Med 358: 252–260.
|
[68] | Alejandria MM, Lansang MA, Dans LF, Mantaring JB (2002) Intravenous immunoglobulin for treating sepsis and septic shock. Cochrane Database Syst Rev. Issue 1: CD001090. doi:10.1002/14651858.CD001090.
|
[69] | Golder S, McIntosh HM, Duffy S, Glanville J (2006) Developing efficient search strategies to identify reports of adverse effects in MEDLINE and EMBASE. Health Info Libr J 23: 3–12.
|
[70] | Sampson M, McGowan J, Cogo E, Grimshaw J, Moher D, et al. (2009) An evidence-based practice guideline for the peer review of electronic search strategies. J Clin Epidemiol. E-pub 2009 February 18.
|
[71] | Flores-Mir C, Major MP, Major PW (2006) Search and selection methodology of systematic reviews in orthodontics (2000–2004). Am J Orthod Dentofacial Orthop 130: 214–217.
|
[72] | Major MP, Major PW, Flores-Mir C (2006) An evaluation of search and selection methods used in dental systematic reviews published in English. J Am Dent Assoc 137: 1252–1257.
|
[73] | Major MP, Major PW, Flores-Mir C (2007) Benchmarking of reported search and selection methods of systematic reviews by dental speciality. Evid Based Dent 8: 66–70.
|
[74] | Shah MR, Hasselblad V, Stevenson LW, Binanay C, O'Connor CM, et al. (2005) Impact of the pulmonary artery catheter in critically ill patients: Meta-analysis of randomized clinical trials. JAMA 294: 1664–1670.
|
[75] | Edwards P, Clarke M, DiGuiseppi C, Pratap S, Roberts I, et al. (2002) Identification of randomized controlled trials in systematic reviews: Accuracy and reliability of screening records. Stat Med 21: 1635–1640.
|
[76] | Cooper HM, Ribble RG (1989) Influences on the outcome of literature searches for integrative research reviews. Knowledge 10: 179–201.
|
[77] | Mistiaen P, Poot E (2006) Telephone follow-up, initiated by a hospital-based health professional, for postdischarge problems in patients discharged from hospital to home. Cochrane Database Syst Rev. Issue 4: CD004510. doi:10.1002/14651858.CD004510.pub3.
|
[78] | Jones AP, Remmington T, Williamson PR, Ashby D, Smyth RL (2005) High prevalence but low impact of data extraction and reporting errors were found in Cochrane systematic reviews. J Clin Epidemiol 58: 741–742.
|
[79] | Clarke M, Hopewell S, Juszczak E, Eisinga A, Kjeldstrom M (2006) Compression stockings for preventing deep vein thrombosis in airline passengers. Cochrane Database Syst Rev. Issue 2: CD004002. doi:10.1002/14651858.CD004002.pub2.
|
[80] | Tramer MR, Reynolds DJ, Moore RA, McQuay HJ (1997) Impact of covert duplicate publication on meta-analysis: A case study. BMJ 315: 635–640.
|
[81] | von Elm E, Poglia G, Walder B, Tramer MR (2004) Different patterns of duplicate publication: An analysis of articles used in systematic reviews. JAMA 291: 974–980.
|
[82] | Gotzsche PC (1989) Multiple publication of reports of drug trials. Eur J Clin Pharmacol 36: 429–432.
|
[83] | Allen C, Hopewell S, Prentice A (2005) Non-steroidal anti-inflammatory drugs for pain in women with endometriosis. Cochrane Database Syst Rev. Issue 4: CD004753. doi:10.1002/14651858.CD004753.pub2.
|
[84] | Glasziou P, Meats E, Heneghan C, Shepperd S (2008) What is missing from descriptions of treatment in trials and reviews? BMJ 336: 1472–1474.
|
[85] | Tracz MJ, Sideras K, Bolona ER, Haddad RM, Kennedy CC, et al. (2006) Testosterone use in men and its effects on bone health. A systematic review and meta-analysis of randomized placebo-controlled trials. J Clin Endocrinol Metab 91: 2011–2016.
|
[86] | Bucher HC, Hengstler P, Schindler C, Guyatt GH (2000) Percutaneous transluminal coronary angioplasty versus medical treatment for non-acute coronary heart disease: Meta-analysis of randomised controlled trials. BMJ 321: 73–77.
|
[87] | Gluud LL (2006) Bias in clinical intervention research. Am J Epidemiol 163: 493–501.
|
[88] | Pildal J, Hróbjartsson A, Jorgensen KJ, Hilden J, Altman DG, et al. (2007) Impact of allocation concealment on conclusions drawn from meta-analyses of randomized trials. Int J Epidemiol 36: 847–857.
|
[89] | Moja LP, Telaro E, D'Amico R, Moschetti I, Coe L, et al. (2005) Assessment of methodological quality of primary studies by systematic reviews: Results of the metaquality cross sectional study. BMJ 330: 1053.
|
[90] | Moher D, Jadad AR, Tugwell P (1996) Assessing the quality of randomized controlled trials. Current issues and future directions. Int J Technol Assess Health Care 12: 195–208.
|
[91] | Sanderson S, Tatt ID, Higgins JP (2007) Tools for assessing quality and susceptibility to bias in observational studies in epidemiology: A systematic review and annotated bibliography. Int J Epidemiol 36: 666–676.
|
[92] | Greenland S (1994) Invited commentary: A critical look at some popular meta-analytic methods. Am J Epidemiol 140: 290–296.
|
[93] | Jüni P, Altman DG, Egger M (2001) Systematic reviews in health care: Assessing the quality of controlled clinical trials. BMJ 323: 42–46.
|
[94] | Kunz R, Oxman AD (1998) The unpredictability paradox: Review of empirical comparisons of randomised and non-randomised clinical trials. BMJ 317: 1185–1190.
|
[95] | Balk EM, Bonis PA, Moskowitz H, Schmid CH, Ioannidis JP, et al. (2002) Correlation of quality measures with estimates of treatment effect in meta-analyses of randomized controlled trials. JAMA 287: 2973–2982.
|
[96] | Devereaux PJ, Beattie WS, Choi PT, Badner NH, Guyatt GH, et al. (2005) How strong is the evidence for the use of perioperative beta blockers in non-cardiac surgery? Systematic review and meta-analysis of randomised controlled trials. BMJ 331: 313–321.
|
[97] | Devereaux PJ, Bhandari M, Montori VM, Manns BJ, Ghali WA, et al. (2002) Double blind, you are the weakest link—Good-bye! ACP J Club 136: A11.
|
[98] | van Nieuwenhoven CA, Buskens E, van Tiel FH, Bonten MJ (2001) Relationship between methodological trial quality and the effects of selective digestive decontamination on pneumonia and mortality in critically ill patients. JAMA 286: 335–340.
|
[99] | Guyatt GH, Cook D, Devereaux PJ, Meade M, Straus S (2002) Therapy. Users' guides to the medical literature. AMA Press. pp. 55–79.
|
[100] | Sackett DL, Gent M (1979) Controversy in counting and attributing events in clinical trials. N Engl J Med 301: 1410–1412.
|
[101] | Montori VM, Devereaux PJ, Adhikari NK, Burns KE, Eggert CH, et al. (2005) Randomized trials stopped early for benefit: A systematic review. JAMA 294: 2203–2209.
|
[102] | Guyatt GH, Devereaux PJ (2002) Therapy and validity: The principle of intention-to-treat. In: Guyatt GH, Rennie DR, editors. Users' guides to the medical literature. AMA Press. pp. 267–273.
|
[103] | Berlin JA (1997) Does blinding of readers affect the results of meta-analyses? University of Pennsylvania Meta-analysis Blinding Study Group. Lancet 350: 185–186.
|
[104] | Jadad AR, Moore RA, Carroll D, Jenkinson C, Reynolds DJ, et al. (1996) Assessing the quality of reports of randomized clinical trials: Is blinding necessary? Control Clin Trials 17: 1–12.
|
[105] | Pittas AG, Siegel RD, Lau J (2004) Insulin therapy for critically ill hospitalized patients: A meta-analysis of randomized controlled trials. Arch Intern Med 164: 2005–2011.
|
[106] | Lakhdar R, Al-Mallah MH, Lanfear DE (2008) Safety and tolerability of angiotensin-converting enzyme inhibitor versus the combination of angiotensin-converting enzyme inhibitor and angiotensin receptor blocker in patients with left ventricular dysfunction: A systematic review and meta-analysis of randomized controlled trials. J Card Fail 14: 181–188.
|
[107] | Bobat R, Coovadia H, Stephen C, Naidoo KL, McKerrow N, et al. (2005) Safety and efficacy of zinc supplementation for children with HIV-1 infection in South Africa: A randomised double-blind placebo-controlled trial. Lancet 366: 1862–1867.
|
[108] | Deeks JJ, Altman DG (2001) Effect measures for meta-analysis of trials with binary outcomes. In: Egger M, Smith GD, Altman DG, editors. Systematic reviews in healthcare: Meta-analysis in context. 2nd edition. London: BMJ Publishing Group.
|
[109] | Deeks JJ (2002) Issues in the selection of a summary statistic for meta-analysis of clinical trials with binary outcomes. Stat Med 21: 1575–1600.
|
[110] | Engels EA, Schmid CH, Terrin N, Olkin I, Lau J (2000) Heterogeneity and statistical significance in meta-analysis: An empirical study of 125 meta-analyses. Stat Med 19: 1707–1728.
|
[111] | Tierney JF, Stewart LA, Ghersi D, Burdett S, Sydes MR (2007) Practical methods for incorporating summary time-to-event data into meta-analysis. Trials 8: 16.
|
[112] | Michiels S, Piedbois P, Burdett S, Syz N, Stewart L, et al. (2005) Meta-analysis when only the median survival times are known: A comparison with individual patient data results. Int J Technol Assess Health Care 21: 119–125.
|
[113] | Briel M, Studer M, Glass TR, Bucher HC (2004) Effects of statins on stroke prevention in patients with and without coronary heart disease: A meta-analysis of randomized controlled trials. Am J Med 117: 596–606.
|
[114] | Jones M, Schenkel B, Just J, Fallowfield L (2004) Epoetin alfa improves quality of life in patients with cancer: Results of metaanalysis. Cancer 101: 1720–1732.
|
[115] | Elbourne DR, Altman DG, Higgins JP, Curtin F, Worthington HV, et al. (2002) Meta-analyses involving cross-over trials: Methodological issues. Int J Epidemiol 31: 140–149.
|
[116] | Follmann D, Elliott P, Suh I, Cutler J (1992) Variance imputation for overviews of clinical trials with continuous response. J Clin Epidemiol 45: 769–773.
|
[117] | Wiebe N, Vandermeer B, Platt RW, Klassen TP, Moher D, et al. (2006) A systematic review identifies a lack of standardization in methods for handling missing variance data. J Clin Epidemiol 59: 342–353.
|
[118] | Hrobjartsson A, Gotzsche PC (2004) Placebo interventions for all clinical conditions. Cochrane Database Syst Rev. Issue 2: CD003974. doi:10.1002/14651858.CD003974.pub2.
|
[119] | Shekelle PG, Morton SC, Maglione M, Suttorp M, Tu W, et al. (2004) Pharmacological and surgical treatment of obesity. Evid Rep Technol Assess (Summ) 1–6.
|
[120] | Chan AW, Altman DG (2005) Identifying outcome reporting bias in randomised trials on PubMed: Review of publications and survey of authors. BMJ 330: 753.
|
[121] | Williamson PR, Gamble C (2005) Identification and impact of outcome selection bias in meta-analysis. Stat Med 24: 1547–1561.
|
[122] | Williamson PR, Gamble C, Altman DG, Hutton JL (2005) Outcome selection bias in meta-analysis. Stat Methods Med Res 14: 515–524.
|
[123] | Ioannidis JP, Trikalinos TA (2007) The appropriateness of asymmetry tests for publication bias in meta-analyses: A large survey. CMAJ 176: 1091–1096.
|
[124] | Briel M, Schwartz GG, Thompson PL, de Lemos JA, Blazing MA, et al. (2006) Effects of early treatment with statins on short-term clinical outcomes in acute coronary syndromes: A meta-analysis of randomized controlled trials. JAMA 295: 2046–2056.
|
[125] | Song F, Eastwood AJ, Gilbody S, Duley L, Sutton AJ (2000) Publication and related biases. Health Technol Assess 4: 1–115.
|
[126] | Schmid CH, Stark PC, Berlin JA, Landais P, Lau J (2004) Meta-regression detected associations between heterogeneous treatment effects and study-level, but not patient-level, factors. J Clin Epidemiol 57: 683–697.
|
[127] | Higgins JP, Thompson SG (2004) Controlling the risk of spurious findings from meta-regression. Stat Med 23: 1663–1682.
|
[128] | Thompson SG, Higgins JP (2005) Treating individuals 4: Can meta-analysis help target interventions at individuals most likely to benefit? Lancet 365: 341–346.
|
[129] | Uitterhoeve RJ, Vernooy M, Litjens M, Potting K, Bensing J, et al. (2004) Psychosocial interventions for patients with advanced cancer—A systematic review of the literature. Br J Cancer 91: 1050–1062.
|
[130] | Fuccio L, Minardi ME, Zagari RM, Grilli D, Magrini N, et al. (2007) Meta-analysis: Duration of first-line proton-pump inhibitor based triple therapy for Helicobacter pylori eradication. Ann Intern Med 147: 553–562.
|
[131] | Egger M, Smith GD (1998) Bias in location and selection of studies. BMJ 316: 61–66.
|
[132] | Ravnskov U (1992) Cholesterol lowering trials in coronary heart disease: Frequency of citation and outcome. BMJ 305: 15–19.
|
[133] | Hind D, Booth A (2007) Do health technology assessments comply with QUOROM diagram guidance? An empirical study. BMC Med Res Methodol 7: 49.
|
[134] | Curioni C, Andre C (2006) Rimonabant for overweight or obesity. Cochrane Database Syst Rev. Issue 4: CD006162. doi:10.1002/14651858.CD006162.pub2.
|
[135] | DeCamp LR, Byerley JS, Doshi N, Steiner MJ (2008) Use of antiemetic agents in acute gastroenteritis: A systematic review and meta-analysis. Arch Pediatr Adolesc Med 162: 858–865.
|
[136] | Pakos EE, Ioannidis JP (2004) Radiotherapy vs. nonsteroidal anti-inflammatory drugs for the prevention of heterotopic ossification after major hip procedures: A meta-analysis of randomized trials. Int J Radiat Oncol Biol Phys 60: 888–895.
|
[137] | Skalsky K, Yahav D, Bishara J, Pitlik S, Leibovici L, et al. (2008) Treatment of human brucellosis: Systematic review and meta-analysis of randomised controlled trials. BMJ 336: 701–704.
|
[138] | Altman DG, Cates C (2001) The need for individual trial results in reports of systematic reviews. BMJ. Rapid response.
|
[139] | Gotzsche PC, Hrobjartsson A, Maric K, Tendal B (2007) Data extraction errors in meta-analyses that use standardized mean differences. JAMA 298: 430–437.
|
[140] | Lewis S, Clarke M (2001) Forest plots: Trying to see the wood and the trees. BMJ 322: 1479–1480.
|
[141] | Papanikolaou PN, Ioannidis JP (2004) Availability of large-scale evidence on specific harms from systematic reviews of randomized trials. Am J Med 117: 582–589.
|
[142] | Duffett M, Choong K, Ng V, Randolph A, Cook DJ (2007) Surfactant therapy for acute respiratory failure in children: A systematic review and meta-analysis. Crit Care 11: R66.
|
[143] | Balk E, Raman G, Chung M, Ip S, Tatsioni A, et al. (2006) Effectiveness of management strategies for renal artery stenosis: A systematic review. Ann Intern Med 145: 901–912.
|
[144] | Palfreyman S, Nelson EA, Michaels JA (2007) Dressings for venous leg ulcers: Systematic review and meta-analysis. BMJ 335: 244.
|
[145] | Ioannidis JP, Patsopoulos NA, Evangelou E (2007) Uncertainty in heterogeneity estimates in meta-analyses. BMJ 335: 914–916.
|
[146] | Appleton KM, Hayward RC, Gunnell D, Peters TJ, Rogers PJ, et al. (2006) Effects of n-3 long-chain polyunsaturated fatty acids on depressed mood: Systematic review of published trials. Am J Clin Nutr 84: 1308–1316.
|
[147] | Kirsch I, Deacon BJ, Huedo-Medina TB, Scoboria A, Moore TJ, et al. (2008) Initial severity and antidepressant benefits: A meta-analysis of data submitted to the Food and Drug Administration. PLoS Med 5: e45. doi:10.1371/journal.pmed.0050045.
|
[148] | Reichenbach S, Sterchi R, Scherer M, Trelle S, Burgi E, et al. (2007) Meta-analysis: Chondroitin for osteoarthritis of the knee or hip. Ann Intern Med 146: 580–590.
|
[149] | Hodson EM, Craig JC, Strippoli GF, Webster AC (2008) Antiviral medications for preventing cytomegalovirus disease in solid organ transplant recipients. Cochrane Database Syst Rev. Issue 2: CD003774. doi:10.1002/14651858.CD003774.pub3.
|
[150] | Thompson SG, Higgins JP (2002) How should meta-regression analyses be undertaken and interpreted? Stat Med 21: 1559–1573.
|
[151] | Chan AW, Krleza-Jeric K, Schmid I, Altman DG (2004) Outcome reporting bias in randomized trials funded by the Canadian Institutes of Health Research. CMAJ 171: 735–740.
|
[152] | Hahn S, Williamson PR, Hutton JL, Garner P, Flynn EV (2000) Assessing the potential for bias in meta-analysis due to selective reporting of subgroup analyses within studies. Stat Med 19: 3325–3336.
|
[153] | Green LW, Glasgow RE (2006) Evaluating the relevance, generalization, and applicability of research: Issues in external validation and translation methodology. Eval Health Prof 29: 126–153.
|
[154] | Liberati A, D'Amico R, Torri V, Brazzi L, Pifferi (2004) Antibiotic prophylaxis to reduce respiratory tract infections and mortality in adults receiving intensive care. Cochrane Database Syst Rev. Issue 1: CD000022. doi:10.1002/14651858.CD000022.pub2.
|
[155] | Gonzalez R, Zamora J, Gomez-Camarero J, Molinero LM, Banares R, et al. (2008) Meta-analysis: Combination endoscopic and drug therapy to prevent variceal rebleeding in cirrhosis. Ann Intern Med 149: 109–122.
|
[156] | D'Amico R, Pifferi S, Leonetti C, Torri V, Tinazzi A, et al. (1998) Effectiveness of antibiotic prophylaxis in critically ill adult patients: Systematic review of randomised controlled trials. BMJ 316: 1275–1285.
|
[157] | Olsen O, Middleton P, Ezzo J, Gotzsche PC, Hadhazy V, et al. (2001) Quality of Cochrane reviews: Assessment of sample from 1998. BMJ 323: 829–832.
|
[158] | Hopewell S, Wolfenden L, Clarke M (2008) Reporting of adverse events in systematic reviews can be improved: Survey results. J Clin Epidemiol 61: 597–602.
|
[159] | Cook DJ, Reeve BK, Guyatt GH, Heyland DK, Griffith LE, et al. (1996) Stress ulcer prophylaxis in critically ill patients. Resolving discordant meta-analyses. JAMA 275: 308–314.
|
[160] | Jadad AR, Cook DJ, Browman GP (1997) A guide to interpreting discordant systematic reviews. CMAJ 156: 1411–1416.
|
[161] | Clarke L, Clarke M, Clarke T (2007) How useful are Cochrane reviews in identifying research needs? J Health Serv Res Policy 12: 101–103.
|
[162] | [No authors listed] (2000) World Medical Association Declaration of Helsinki: Ethical principles for medical research involving human subjects. JAMA 284: 3043–3045.
|
[163] | Clarke M, Hopewell S, Chalmers I (2007) Reports of clinical trials should begin and end with up-to-date systematic reviews of other relevant evidence: A status report. J R Soc Med 100: 187–190.
|
[164] | Dube C, Rostom A, Lewin G, Tsertsvadze A, Barrowman N, et al. (2007) The use of aspirin for primary prevention of colorectal cancer: A systematic review prepared for the U.S. Preventive Services Task Force. Ann Intern Med 146: 365–375.
|
[165] | Critchley J, Bates I (2005) Haemoglobin colour scale for anaemia diagnosis where there is no laboratory: A systematic review. Int J Epidemiol 34: 1425–1434.
|
[166] | Lexchin J, Bero LA, Djulbegovic B, Clark O (2003) Pharmaceutical industry sponsorship and research outcome and quality: Systematic review. BMJ 326: 1167–1170.
|
[167] | Als-Nielsen B, Chen W, Gluud C, Kjaergard LL (2003) Association of funding and conclusions in randomized drug trials: A reflection of treatment effect or adverse events? JAMA 290: 921–928.
|
[168] | Peppercorn J, Blood E, Winer E, Partridge A (2007) Association between pharmaceutical involvement and outcomes in breast cancer clinical trials. Cancer 109: 1239–1246.
|
[169] | Yank V, Rennie D, Bero LA (2007) Financial ties and concordance between results and conclusions in meta-analyses: Retrospective cohort study. BMJ 335: 1202–1205.
|
[170] | Jorgensen AW, Hilden J, G?tzsche PC (2006) Cochrane reviews compared with industry supported meta-analyses and other meta-analyses of the same drugs: Systematic review. BMJ 333: 782.
|
[171] | Gotzsche PC, Hrobjartsson A, Johansen HK, Haahr MT, Altman DG, et al. (2007) Ghost authorship in industry-initiated randomised trials. PLoS Med 4: e19. doi:10.1371/journal.pmed.0040019.
|
[172] | Akbari A, Mayhew A, Al-Alawi M, Grimshaw J, Winkens R, et al. (2008) Interventions to improve outpatient referrals from primary care to secondary care. Cochrane Database Syst Rev. Issue 2: CD005471. doi:10.1002/14651858.CD005471.pub2.
|
[173] | Davies P, Boruch R (2001) The Campbell Collaboration. BMJ 323: 294–295.
|
[174] | Pawson R, Greenhalgh T, Harvey G, Walshe K (2005) Realist review—A new method of systematic review designed for complex policy interventions. J Health Serv Res Policy 10: (Suppl 1)21–34.
|
[175] | Greenhalgh T, Robert G, Macfarlane F, Bate P, Kyriakidou O, et al. (2005) Storylines of research in diffusion of innovation: A meta-narrative approach to systematic review. Soc Sci Med 61: 417–430.
|
[176] | Lumley T (2002) Network meta-analysis for indirect treatment comparisons. Stat Med 21: 2313–2324.
|
[177] | Salanti G, Higgins JP, Ades AE, Ioannidis JP (2008) Evaluation of networks of randomized trials. Stat Methods Med Res 17: 279–301.
|
[178] | Altman DG, Moher D (2005) [Developing guidelines for reporting healthcare research: Scientific rationale and procedures.]. Med Clin (Barc) 125: (Suppl 1)8–13.
|
[179] | Delaney A, Bagshaw SM, Ferland A, Manns B, Laupland KB, et al. (2005) A systematic evaluation of the quality of meta-analyses in the critical care literature. Crit Care 9: R575–582.
|
[180] | Altman DG, Simera I, Hoey J, Moher D, Schulz K (2008) EQUATOR: Reporting guidelines for health research. Lancet 371: 1149–1150.
|
[181] | Plint AC, Moher D, Morrison A, Schulz K, Altman DG, et al. (2006) Does the CONSORT checklist improve the quality of reports of randomised controlled trials? A systematic review. Med J Aust 185: 263–267.
|
[182] | Simera I, Altman DG, Moher D, Schulz KF, Hoey J (2008) Guidelines for reporting health research: The EQUATOR network's survey of guideline authors. PLoS Med 5: e139. doi:10.1371/journal.pmed.0050139.
|
[183] | Last JM (2001) A dictionary of epidemiology. Oxford: Oxford University Press & International Epidemiological Association.
|
[184] | Antman EM, Lau J, Kupelnick B, Mosteller F, Chalmers TC (1992) A comparison of results of meta-analyses of randomized control trials and recommendations of clinical experts. Treatments for myocardial infarction. JAMA 268: 240–248.
|
[185] | Oxman AD, Guyatt GH (1993) The science of reviewing research. Ann N Y Acad Sci 703: 125–133. discussion 133–124.
|
[186] | O'Connor D, Green S, Higgins JPT (2008) Chapter 5: Defining the review question and developing criteria for including studies. In: Higgins JPT, Green S, editors. Cochrane handbook for systematic reviews of interventions version 5.0.0 [updated February 2008]. The Cochrane Collaboration. Available: http://www.cochrane-handbook.org/. Accessed 26 May 2009.
|
[187] | McDonagh M, Whiting P, Bradley M, Cooper J, Sutton A, et al. (2000) A systematic review of public water fluoridation. Protocol changes (Appendix M). NHS Centre for Reviews and Dissemination. York: University of York. Available: http://www.york.ac.uk/inst/crd/pdf/appm.?pdf. Accessed 26 May 2009.
|
[188] | Moher D, Cook DJ, Jadad AR, Tugwell P, Moher M, et al. (1999) Assessing the quality of reports of randomised trials: Implications for the conduct of meta-analyses. Health Technol Assess 3: i–iv, 1–98.
|
[189] | Devereaux PJ, Choi PT, El-Dika S, Bhandari M, Montori VM, et al. (2004) An observational study found that authors of randomized controlled trials frequently use concealment of randomization and blinding, despite the failure to report these methods. J Clin Epidemiol 57: 1232–1236.
|
[190] | Soares HP, Daniels S, Kumar A, Clarke M, Scott C, et al. (2004) Bad reporting does not mean bad methods for randomised trials: Observational study of randomised controlled trials performed by the Radiation Therapy Oncology Group. BMJ 328: 22–24.
|
[191] | Liberati A, Himel HN, Chalmers TC (1986) A quality assessment of randomized control trials of primary treatment of breast cancer. J Clin Oncol 4: 942–951.
|
[192] | Moher D, Jadad AR, Nichol G, Penman M, Tugwell P, et al. (1995) Assessing the quality of randomized controlled trials: An annotated bibliography of scales and checklists. Control Clin Trials 16: 62–73.
|
[193] | Greenland S, O'Rourke K (2001) On the bias produced by quality scores in meta-analysis, and a hierarchical view of proposed solutions. Biostatistics 2: 463–471.
|
[194] | Jüni P, Witschi A, Bloch R, Egger M (1999) The hazards of scoring the quality of clinical trials for meta-analysis. JAMA 282: 1054–1060.
|
[195] | Fleiss JL (1993) The statistical basis of meta-analysis. Stat Methods Med Res 2: 121–145.
|
[196] | Villar J, Mackey ME, Carroli G, Donner A (2001) Meta-analyses in systematic reviews of randomized controlled trials in perinatal medicine: Comparison of fixed and random effects models. Stat Med 20: 3635–3647.
|
[197] | Lau J, Ioannidis JP, Schmid CH (1998) Summing up evidence: One answer is not always enough. Lancet 351: 123–127.
|
[198] | DerSimonian R, Laird N (1986) Meta-analysis in clinical trials. Control Clin Trials 7: 177–188.
|
[199] | Hunter JE, Schmidt FL (2000) Fixed effects vs. random effects meta-analysis models: Implications for cumulative research knowledge. Int J Sel Assess 8: 275–292.
|
[200] | Deeks JJ, Altman DG, Bradburn MJ (2001) Statistical methods for examining heterogeneity and combining results from several studies in meta-analysis. In: Egger M, Davey Smith G, Altman DG, editors. Systematic reviews in healthcare: Meta-analysis in context. London: BMJ Publishing Group. pp. 285–312.
|
[201] | Warn DE, Thompson SG, Spiegelhalter DJ (2002) Bayesian random effects meta-analysis of trials with binary outcomes: Methods for the absolute risk difference and relative risk scales. Stat Med 21: 1601–1623.
|
[202] | Higgins JP, Thompson SG, Deeks JJ, Altman DG (2003) Measuring inconsistency in meta-analyses. BMJ 327: 557–560.
|
[203] | Higgins JP, Thompson SG (2002) Quantifying heterogeneity in a meta-analysis. Stat Med 21: 1539–1558.
|
[204] | Huedo-Medina TB, Sanchez-Meca J, Marin-Martinez F, Botella J (2006) Assessing heterogeneity in meta-analysis: Q statistic or I2 index? Psychol Methods 11: 193–206.
|
[205] | Thompson SG, Turner RM, Warn DE (2001) Multilevel models for meta-analysis, and their application to absolute risk differences. Stat Methods Med Res 10: 375–392.
|
[206] | Dickersin K (2005) Publication bias: Recognising the problem, understanding its origin and scope, and preventing harm. In: Rothstein HR, Sutton AJ, Borenstein M, editors. Publication bias in meta-analysis—Prevention, assessment and adjustments. West Sussex: John Wiley & Sons.
|
[207] | Scherer RW, Langenberg P, von Elm E (2007) Full publication of results initially presented in abstracts. Cochrane Database Syst Rev. Issue 2: MR000005. doi:10.1002/14651858.MR000005.pub3.
|
[208] | Krzyzanowska MK, Pintilie M, Tannock IF (2003) Factors associated with failure to publish large randomized trials presented at an oncology meeting. JAMA 290: 495–501.
|
[209] | Hopewell S, Clarke M (2001) Methodologists and their methods. Do methodologists write up their conference presentations or is it just 15 minutes of fame? Int J Technol Assess Health Care 17: 601–603.
|
[210] | Ghersi D (2006) Issues in the design, conduct and reporting of clinical trials that impact on the quality of decision making. PhD thesis. Sydney: School of Public Health, Faculty of Medicine, University of Sydney.
|
[211] | von Elm E, Rollin A, Blumle A, Huwiler K, Witschi M, et al. (2008) Publication and non-publication of clinical trials: Longitudinal study of applications submitted to a research ethics committee. Swiss Med Wkly 138: 197–203.
|
[212] | Sterne JA, Egger M (2001) Funnel plots for detecting bias in meta-analysis: Guidelines on choice of axis. J Clin Epidemiol 54: 1046–1055.
|
[213] | Harbord RM, Egger M, Sterne JA (2006) A modified test for small-study effects in meta-analyses of controlled trials with binary endpoints. Stat Med 25: 3443–3457.
|
[214] | Peters JL, Sutton AJ, Jones DR, Abrams KR, Rushton L (2006) Comparison of two methods to detect publication bias in meta-analysis. JAMA 295: 676–680.
|
[215] | Rothstein HR, Sutton AJ, Borenstein M (2005) Publication bias in meta-analysis: Prevention, assessment and adjustments. West Sussex: John Wiley & Sons.
|
[216] | Lau J, Ioannidis JP, Terrin N, Schmid CH, Olkin I (2006) The case of the misleading funnel plot. BMJ 333: 597–600.
|
[217] | Terrin N, Schmid CH, Lau J (2005) In an empirical evaluation of the funnel plot, researchers could not visually identify publication bias. J Clin Epidemiol 58: 894–901.
|
[218] | Egger M, Davey Smith G, Schneider M, Minder C (1997) Bias in meta-analysis detected by a simple, graphical test. BMJ 315: 629–634.
|
[219] | Ioannidis JP, Trikalinos TA (2007) An exploratory test for an excess of significant findings. Clin Trials 4: 245–253.
|
[220] | Sterne JAC, Egger M, Moher D (2008) Chapter 10: Addressing reporting biases. In: Higgins JPT, Green S, editors. Cochrane handbook for systematic reviews of interventions version 5.0.0 [updated February 2008]. The Cochrane Collaboration. Available: http://www.cochrane-handbook.org/. Accessed 26 May 2009.
|