Inclusion of nonrandomized studies in Cochrane systematic reviews was found to be in need of improvement

Journal of Clinical Epidemiology

Volumn 67, Issue 6, 2014, Pages 645-653

  Ijaz, Sharea ^a   Verbeek, Jos H ^a   Mischke, Christina ^a   Ruotsalainen, Jani ^a  

^a FINNISH INSTITUTE OF OCCUPATIONAL HEALTH   (Finland)

Author keywords

Comparative effectiveness research; Epidemiologic bias; Intervention studies; Meta analysis; Review; Systematic reviews

Indexed keywords

CLINICAL PRACTICE; COCHRANE LIBRARY; COMPARATIVE EFFECTIVENESS; HEALTH CARE; HUMAN; OBSERVATIONAL STUDY; PRIORITY JOURNAL; RANDOMIZED CONTROLLED TRIAL (TOPIC); REVIEW; STUDY DESIGN; SYSTEMATIC REVIEW;

COMPARATIVE EFFECTIVENESS RESEARCH; EPIDEMIOLOGIC BIAS; INTERVENTION STUDIES; META-ANALYSIS; REVIEW; SYSTEMATIC REVIEWS;

BIAS (EPIDEMIOLOGY); HUMANS; RANDOMIZED CONTROLLED TRIALS AS TOPIC; RESEARCH DESIGN; REVIEW LITERATURE AS TOPIC; RISK ASSESSMENT;

EID: 84899539827     PISSN: 08954356     EISSN: 18785921     Source Type: Journal    
DOI: 10.1016/j.jclinepi.2014.01.001     Document Type: Review

References (44)

1. D.G. Altman, and J.M. Bland Statistics notes. Treatment allocation in controlled trials: why randomise? BMJ 318 1999 1209
2. J.P. Vandenbroucke When are observational studies as credible as randomised trials? Lancet 363 2004 1728 1731
3. P. Glasziou, I. Chalmers, M. Rawlins, and P. McCulloch When are randomised trials unnecessary? Picking signal from noise BMJ 334 2007 349 351
4. M. Potts, N. Prata, J. Walsh, and A. Grossman Parachute approach to evidence based medicine BMJ 333 2006 701 703
5. B.C. Reeves, J.J. Deeks, J.P.T. Higgins, and G.A. Wells Chapter 13: including non-randomized studies J.P.T. Higgins, S. Green, Cochrane handbook for systematic reviews of interventions version 5.1.0 (updated March 2011) 2011 The Cochrane Collaboration
6. W.R. Shadish, T.D. Cook, and D.T. Campbel Experimental and quasi-experimental designs for generalized causal inference 2002 Houghton Mifflin Boston, MA
7. J.J. Deeks, J. Dinnes, R. D'Amico, A.J. Sowden, C. Sakarovitch, and F. Song et al. Evaluating non-randomised intervention studies Health Technol Assess 7 2003 iii iix 1-173
8. L. Hartling, K. Bond, P.L. Santaguida, M. Viswanathan, and D.M. Dryden Testing a tool for the classification of study designs in systematic reviews of interventions and exposures showed moderate reliability and low accuracy J Clin Epidemiol 64 2011 861 871
9. A.D. Furlan, E. Irvin, and C. Bombardier Limited search strategies were effective in finding relevant nonrandomized studies J Clin Epidemiol 59 2006 1303 1311
10. S.L. Norris, and D. Atkins Challenges in using nonrandomized studies in systematic reviews of treatment interventions Ann Intern Med 142 2005 1112 1119
11. B.C. Reeves, J.J. Deeks, J.P.T. Higgins, and W. GA Chapter 13: including non-randomized studies J. Higgins, S. Green, Cochrane handbook for systematic reviews of interventions 2011 John Wiley & Sons Chichester, UK
12. B.C. Reeves, J.P.T. Higgins, C. Ramsay, B. Shea, P. Tugwell, and G.A. Wells An introduction to methodological issues when including non-randomised studies in systematic reviews on the effects of interventions Res Synth Methods 4 2013 1 11
13. S.L. Norris, D. Atkins, W. Bruening, S. Fox, E. Johnson, and R. Kane et al. Observational studies in systemic reviews of comparative effectiveness: AHRQ and the Effective Health Care Program J Clin Epidemiol 64 2011 1178 1186
14. J. Critchley, and S. Capewell Smoking cessation for the secondary prevention of coronary heart disease Cochrane Database Syst Rev 2003 CD003041
15. S. Weller, and K. Davis Condom effectiveness in reducing heterosexual HIV transmission Cochrane Database Syst Rev 2002 CD003255
16. S.H. Downs, and N. Black The feasibility of creating a checklist for the assessment of the methodological quality both of randomised and non-randomised studies of health care interventions J Epidemiol Community Health 52 1998 377 384
17. J. Deeks, J. Glanville, and T. Sheldon Undertaking systematic reviews of effectiveness: CRD guidelines for those carrying out or commissioning reviews 1996 NHS Centre for Reviews and Dissemination York, UK
18. K. Slim, E. Nini, D. Forestier, F. Kwiatkowski, Y. Panis, and J. Chipponi Methodological index for non-randomized studies (minors): development and validation of a new instrument ANZ J Surg 73 2003 712 716
19. J.P.T. Higgins, C. Ramsay, B.C. Reeves, J.J. Deeks, B. Shea, and J.C. Valentine et al. Issues relating to study design and risk of bias when including non-randomized studies in systematic reviews on the effects of interventions Res Synth Methods 4 2013 12 25
20. S. Edwards, R. Lilford, D. Braunholtz, J. Jackson, J. Hewison, and J. Thornton Ethical issues in the design and conduct of randomised controlled trials Health Technol Assess 2 1998 1 132
21. H.J. Schünemann, P. Tugwell, B.C. Reeves, E.A. Akl, N. Santesso, and F.A. Spencer et al. Non-randomized studies as a source of complementary, sequential or replacement evidence for randomized controlled trials in systematic reviews on the effects of interventions Res Synth Methods 4 2013 49 62
22. C. Glenton, S. Lewin, A. Mayhew, I. Scheel, and J. Odgaard-Jensen Nonrandomized studies are not always found even when selection criteria for health systems intervention reviews include them: a methodological study J Clin Epidemiol 66 2013 367 370
23. O. Ojo, J.H. Verbeek, K. Rasanen, J. Heikkinen, L.K. Isotalo, and N. Mngoma et al. Interventions to reduce risky sexual behaviour for preventing HIV infection in workers in occupational settings Cochrane Database Syst Rev 2011 CD005274
24. J.H. Verbeek, K.P. Martimo, J. Karppinen, P.P. Kuijer, E. Viikari-Juntura, and E.P. Takala Manual material handling advice and assistive devices for preventing and treating back pain in workers Cochrane Database Syst Rev 2011 CD005958
25. J. Yaffe, P. Montgomery, S. Hopewell, and L.D. Shepard Empty reviews: a description and consideration of Cochrane systematic reviews with no included studies PLoS One 7 2012 e36626
26. D.A. Lawlor, G. Davey Smith, D. Kundu, K.R. Bruckdorfer, and S. Ebrahim Those confounded vitamins: what can we learn from the differences between observational versus randomised trial evidence? Lancet 363 2004 1724 1727
27. S.P. Adams, M. Tsang, and J.M. Wright Lipid lowering efficacy of atorvastatin Cochrane Database Syst Rev 12 2012 CD008226
28. P.C. Austin An introduction to propensity score methods for reducing the effects of confounding in observational studies Multivariate Behav Res 46 2011 399 424
29. J.A. Rassen, M.A. Brookhart, R.J. Glynn, M.A. Mittleman, and S. Schneeweiss Instrumental variables I: instrumental variables exploit natural variation in nonexperimental data to estimate causal relationships J Clin Epidemiol 62 2009 1226 1232
30. J.C. Valentine, and S.G. Thompson Issues relating to confounding and meta-analysis when including non-randomized studies in systematic reviews on the effects of interventions Res Synth Methods 4 2013 26 35
31. T.A. Shamliyan, R.L. Kane, M.T. Ansari, G. Raman, N.D. Berkman, and M. Grant et al. Development quality criteria to evaluate nontherapeutic studies of incidence, prevalence, or risk factors of chronic diseases: pilot study of new checklists J Clin Epidemiol 64 2011 637 657
32. G.A. Wells, B. Shea, J.P.T. Higgins, J. Sterne, P. Tugwell, and B.C. Reeves Checklists of methodological issues for review authors to consider when including non-randomized studies in systematic reviews Res Synth Methods 4 2013 63 77
33. S.L. Norris, D. Moher, B.C. Reeves, B. Shea, Y. Loke, and S. Garner et al. Issues relating to selective reporting when including non-randomized studies in systematic reviews on the effects of healthcare interventions Res Synth Methods 4 2013 36 47
34. P.C. Rockers, A.B. Feigl, J.A. Rottingen, A. Fretheim, D. de Ferranti, and J.N. Lavis et al. Study-design selection criteria in systematic reviews of effectiveness of health systems interventions and reforms: a meta-review Health Policy 104 2012 206 214
35. K. Aung, and T. Htay Thiazide diuretics and the risk of hip fracture Cochrane Database Syst Rev 2011 CD005185
36. L. Robertson, N. Waugh, and A. Robertson Protein restriction for diabetic renal disease Cochrane Database Syst Rev 2007 CD002181
37. G.Y. Lip, B.J. Wrigley, and R. Pisters Anticoagulation versus placebo for heart failure in sinus rhythm Cochrane Database Syst Rev 6 2012 CD003336
38. P.R. Baker, D.P. Francis, J. Soares, A.L. Weightman, and C. Foster Community wide interventions for increasing physical activity Cochrane Database Syst Rev 2011 CD008366
39. J.H. Verbeek, E. Kateman, T.C. Morata, W.A. Dreschler, and C. Mischke Interventions to prevent occupational noise-induced hearing loss Cochrane Database Syst Rev 10 2012 CD006396
40. B. Lindsay, and P.M. Bradley Care delivery and self-management strategies for children with epilepsy Cochrane Database Syst Rev 2010 CD006245
41. H.F. van der Molen, M.M. Lehtola, J. Lappalainen, P.L. Hoonakker, H. Hsiao, and R. Haslam et al. Interventions to prevent injuries in construction workers Cochrane Database Syst Rev 12 2012 CD006251
42. D.C. Thompson, F.P. Rivara, and R. Thompson Helmets for preventing head and facial injuries in bicyclists Cochrane Database Syst Rev 2000 CD001855
43. L. Hooper, R.L. Thompson, R.A. Harrison, C.D. Summerbell, H. Moore, and H.V. Worthington et al. Omega 3 fatty acids for prevention and treatment of cardiovascular disease Cochrane Database Syst Rev 2004 CD003177
44. M. Alazzam, J. Tidy, B.W. Hancock, and R. Osborne First line chemotherapy in low risk gestational trophoblastic neoplasia Cochrane Database Syst Rev 2009 CD007102