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The DOI matches its Crossref record; 7 of the 7 references it cites were found in a registry or an index.

Predictive distributions were developed for the extent of heterogeneity in meta-analyses of continuous outcome data

Open access
Rhodes, Kirsty M., Turner, Rebecca M., Higgins, Julian P.T.·2015·Journal of Clinical Epidemiology

Abstract

OBJECTIVES: Estimation of between-study heterogeneity is problematic in small meta-analyses. Bayesian meta-analysis is beneficial because it allows incorporation of external evidence on heterogeneity. To facilitate this, we provide empirical evidence on the likely heterogeneity between studies in meta-analyses relating to specific research settings. STUDY DESIGN AND SETTING: Our analyses included 6,492 continuous-outcome meta-analyses within the Cochrane Database of Systematic Reviews. We investigated the influence of meta-analysis settings on heterogeneity by modeling study data from all meta-analyses on the standardized mean difference scale. Meta-analysis setting was described according to outcome type, intervention comparison type, and medical area. Predictive distributions for between-study variance expected in future meta-analyses were obtained, which can be used directly as informative priors. RESULTS: Among outcome types, heterogeneity was found to be lowest in meta-analyses of obstetric outcomes. Among intervention comparison types, heterogeneity was lowest in meta-analyses comparing two pharmacologic interventions. Predictive distributions are reported for different settings. In two example meta-analyses, incorporating external evidence led to a more precise heterogeneity estimate. CONCLUSION: Heterogeneity was influenced by meta-analysis characteristics. Informative priors for between-study variance were derived for each specific setting. Our analyses thus assist the incorporation of realistic prior information into meta-analyses including few studies.

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Research works printed but not linked: 12

  1. Sutton, 2009, Evidence synthesis as the key to more coherent and efficient research, BMC Med Res Methodol, 9, 29, 10.1186/1471-2288-9-29 · DOI
  2. Higgins, 1996, Borrowing strength from external trials in a meta-analysis, Stat Med, 15, 2733, 10.1002/(SICI)1097-0258(19961230)15:24<2733::AID-SIM562>3.0.CO;2-0 · DOI
  3. Pullenayegum, 2011, An informed reference prior for between-study heterogeneity in meta-analyses of binary outcomes, Stat Med, 30, 3082, 10.1002/sim.4326 · DOI
  4. Spiegelhalter, 2002, Bayesian measures of model complexity and fit (with discussion), J R Stat Soc Ser B, 64, 583, 10.1111/1467-9868.00353 · DOI · Paper page
  5. Lunn, 2000, WinBUGS—a Bayesian modelling framework: concepts, structure, and extensibility, Stat Comput, 10, 325, 10.1023/A:1008929526011 · DOI
  6. Heiwe, 2011, Exercise training for adults with chronic kidney disease, Cochrane Database Syst Rev, CD003236
  7. Viechtbauer, 2007, Confidence intervals for the amount of heterogeneity in meta-analysis, Stat Med, 26, 37, 10.1002/sim.2514 · DOI
  8. Thompson, 1997, Investigating underlying risk as a source of heterogeneity in meta-analysis, Stat Med, 16, 2741, 10.1002/(SICI)1097-0258(19971215)16:23<2741::AID-SIM703>3.0.CO;2-0 · DOI
  9. Adams, 2000, Budesonide at different doses for chronic asthma, Cochrane Database Syst Rev, CD003271
  10. Anzures-Cabrera, 2011, Expressing findings from meta-analyses of continuous outcomes in terms of risks, Stat Med, 30, 2967, 10.1002/sim.4298 · DOI
  11. Wu, 2005, Chinese medical herbs for chemotherapy side effects in colorectal cancer patients, Cochrane Database Syst Rev, CD004540
  12. Friedrich, 2008, The ratio of means method as an alternative to mean differences for analyzing continuous outcome variables in meta-analysis: a simulation study, BMC Med Res Methodol, 8, 32, 10.1186/1471-2288-8-32 · DOI · Paper page

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Metadata

Authors
Rhodes, K. M., Turner, R. M., & Higgins, J. P. T.
Venue
Journal of Clinical Epidemiology
Publisher
Elsevier BV
Published
2015-01
Volume
68
Issue
1
Pages
52-60
ISSN
0895-4356 (ISSN-L)
OpenAlex
W2075046475
Cited by
395
References
7
FWCI
17.62
Type
journal article
Language
en
Open access
hybrid
Licence

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