Abstract
The random-effects model allows for the possibility that studies in a meta-analysis have heterogeneous effects. That is, observed study estimates vary not only due to random sampling error but also due to inherent differences in the way studies have been designed and conducted. In this chapter, we consider methods to estimate the heterogeneity variance parameter in a random-effects model, consider in more detail what this parameter represents and how the possible explanations for heterogeneity can be explored through statistical methods. Toward the end of this chapter, publication bias is discussed as an alternative explanation for why observed effect estimates might form some distribution other than what we might come to expect.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Borenstein M, Hedges LV, Higgins JPT (2009) Introduction to meta-analysis. Wiley, Hoboken, NJ
Higgins JPT, Thompson SG, Spiegelhalter DJ (2009) A re-evaluation of random-effects meta-analysis. J R Stat Soc Ser A Stat Soc 172(1):137–159
Deeks JJ, Higgins JPT, Altman DG (2011) Chapter 9: analysing data and undertaking meta-analyses. In: Higgins JPT, Green S (eds) Cochrane handbook for systematic reviews of interventions version 5.1.0 (updated March 2011). The Cochrane Collaboration, London. www.handbook.cochrane.org
Higgins JP, Thompson SG, Deeks JJ, Altman DG (2003) Measuring inconsistency in meta-analyses. BMJ 327(7414):557–560
Borenstein M, Hedges LV, Higgins JP, Rothstein HR (2010) A basic introduction to fixed-effect and random-effects models for meta-analysis. Res Synth Methods 1(2):97–111
Veroniki AA, Jackson D, Viechtbauer W et al (2016) Methods to estimate the between-study variance and its uncertainty in meta-analysis. Res Synth Methods 7(1):55–79
Langan D, Higgins JP, Simmonds M (2017) Comparative performance of heterogeneity variance estimators in meta-analysis: a review of simulation studies. Res Synth Methods 8(2):181–198. https://doi.org/10.1002/jrsm.1198
DerSimonian R, Laird N (1986) Meta-analysis in clinical trials. Control Clin Trials 7(3):177–188
Paule R, Mandel J (1982) Consensus values and weighting factors. J Res Natl Bur Stand 87(5):377–385
Harville DA (1977) Maximum likelihood approaches to variance component estimation and to related problems. J Am Stat Assoc 72(358):320–338
Langan D, Higgins JP, Jackson D et al (2019) A comparison of heterogeneity variance estimators in simulated random-effects meta-analyses. Res Synth Methods 10(1):83–98. https://doi.org/10.1002/jrsm.1316
DerSimonian R, Kacker R (2007) Random-effects model for meta-analysis of clinical trials: an update. Contemp Clin Trials 28(2):105–114
Bowden J, Tierney J, Copas A, Burdett S (2011) Quantifying, displaying and accounting for heterogeneity in the meta-analysis of RCTs using standard and generalised Q statistics. BMC Med Res Methodol 11(1):41
Rukhin AL, Biggerstaff BJ, Vangel MG (2000) Restricted maximum likelihood estimation of a common mean and the Mandel-Paule algorithm. J Stat Plan Infer 83(2):319–330
Hardy RJ, Thompson SG (1996) A likelihood approach to meta-analysis with random effects. Stat Med 15(6):619–629
Hartung J, Makambi KH (2003) Reducing the number of unjustified significant results in meta-analysis. Commun Stat Simul Comput 32(4):1179–1190
Viechtbauer W (2005) Bias and efficiency of meta-analytic variance estimators in the random-effects model. J Educ Behav Stat 30(3):261–293
Jennrich RI, Sampson P (1976) Newton-Raphson and related algorithms for maximum likelihood variance component estimation. Technometrics 18(1):11–17
Kontopantelis E, Springate DA, Reeves D (2013) A re-analysis of the Cochrane library data: the dangers of unobserved heterogeneity in meta-analyses. PLoS One 8:7
Higgins JPT, Thompson SG (2002) Quantifying heterogeneity in a meta-analysis. Stat Med 21(11):1539–1558
Turner RM, Davey J, Clarke MJ, Thompson SG, Higgins JP (2012) Predicting the extent of heterogeneity in meta-analysis, using empirical data from the Cochrane Database of Systematic Reviews. Int J Epidemiol 41(3):818–827
Davey J, Turner RM, Clarke MJ, Higgins JP (2011) Characteristics of meta-analyses and their component studies in the Cochrane Database of Systematic Reviews: a cross-sectional, descriptive analysis. BMC Med Res Methodol 11:160
Novianti PW, Roes KC, van der Tweel I (2014) Estimation of between-trial variance in sequential meta-analyses: a simulation study. Contemp Clin Trials 37(1):129–138
Bhaumik DK, Amatya A, Normand S-LT, Greenhouse J, Kaizar E, Neelon B, Gibbons RD (2012) Meta-analysis of rare binary adverse event data. J Am Stat Assoc 107(498):555–567
Panityakul T, Bumrungsup C, Knapp G (2013) On estimating residual heterogeneity in random-effects meta-regression: a comparative study. J Stat Theory Appl 12(3):253–265
Böhning D, Malzahn U, Dietz E, Schlattmann P, Viwat-wongkasem C, Biggeri A (2002) Some general points in estimating heterogeneity variance with the DerSimonian-Laird estimator. Biostatistics 3(4):445–457
Katalinic OM, Harvey LA, Herbert RD, Moseley AM, Lannin NA, Schurr K (2010) Stretch for the treatment and prevention of contractures. Cochrane Database Syst Rev (9)
Polanczyk GV, Willcutt EG, Salum GA, Kieling C, Rohde LA (2014) ADHD prevalence estimates across three decades: an updated systematic review and meta-regression analysis. Int J Epidemiol 43(2):434–442
Higgins JP, Spiegelhalter DJ (2002) Being sceptical about meta-analyses: a Bayesian perspective on magnesium trials in myocardial infarction. Int J Epidemiol 31(1):96–104
Doucouliagos H, Ulubaşoğlu MA (2008) Democracy and economic growth: a meta-analysis. Am J Polit Sci 52(1):61–83
Ladeiras-Lopes R, Pereira AK, Nogueira A, Pinheiro-Torres T, Pinto I, Santos-Pereira R, Lunet N (2008) Smoking and gastric cancer: systematic review and meta-analysis of cohort studies. Cancer Causes Control 19(7):689–701
Shi L, Lin L (2019) The trim-and-fill method for publication bias: practical guidelines and recommendations based on a large database of meta-analyses. Medicine 98(23):e15987
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2022 Springer Science+Business Media, LLC, part of Springer Nature
About this protocol
Cite this protocol
Langan, D. (2022). Assessing Heterogeneity in Random-Effects Meta-analysis. In: Evangelou, E., Veroniki, A.A. (eds) Meta-Research. Methods in Molecular Biology, vol 2345. Humana, New York, NY. https://doi.org/10.1007/978-1-0716-1566-9_4
Download citation
DOI: https://doi.org/10.1007/978-1-0716-1566-9_4
Published:
Publisher Name: Humana, New York, NY
Print ISBN: 978-1-0716-1565-2
Online ISBN: 978-1-0716-1566-9
eBook Packages: Springer Protocols