Design and Analysis of Cluster Randomization Trials in Health Research, 2000. ,
Evidence for risk of bias in cluster randomized trials: review of recent trials published in three general medical journals, BMJ, vol.327, pp.785-89, 2003. ,
Bias in identifying and recruiting participants in cluster randomized trials: what can be done?, BMJ, vol.339, p.4006, 2009. ,
Internal and external validity of cluster randomized trials: systematic review of recent trials, BMJ, vol.336, pp.876-80, 2008. ,
Preventing bias in cluster randomized trials, PLoS Med, vol.6, p.1000065, 2009. ,
Timeline cluster: a graphical tool to identify risk of bias in cluster randomized trials, BMJ, vol.354, p.4291, 2016. ,
Influence of reported study design characteristics on intervention effect estimates from randomized, controlled trials, Ann Intern Med, vol.157, pp.429-467, 2012. ,
Hip protectors for preventing hip fractures in older people, Cochrane Database of Systematic Reviews, 2014. ,
Methodological bias in cluster randomized trials, BMC Med Res Methodol, vol.5, p.10, 2005. ,
Cluster randomized trials produced similar results to individually randomized trials in a meta-analysis of enhanced care for depression, J Clin Epidemiol, vol.61, pp.160-68, 2008. ,
Characteristics of cluster randomized trials: are they living up to the randomized trial?, JAMA Intern Med, vol.173, pp.313-328, 2013. ,
, Cochrane Handbook for Systematic Reviews of Interventions Version 5.1.0. London: Cochrane Collaboration, 2011.
Guidelines for reporting meta-epidemiological methodology research, Evid Based Med, vol.22, pp.139-181, 2017. ,
Determinants of the intracluster correlation coefficient in cluster randomized trials: the case of implementation research, Clinical Trials, vol.2, pp.99-107, 2005. ,
Approximate confidence intervals for standardized effect sizes in the two-independent and two-dependent samples design, J Educ Behav Stat, vol.32, pp.39-60, 2007. ,
Statistical methods for assessing the influence of study characteristics on treatment effects in "meta-epidemiological" research, Stat Med, vol.21, pp.1513-1537, 2002. ,
Measuring inconsistency in meta-analyses, BMJ, vol.327, pp.557-60, 2003. ,
Methods to estimate the between-study variance and its uncertainty in metaanalysis, Res Synth Methods, vol.7, pp.55-79, 2016. ,
The Cochrane Collaboration's tool for assessing risk of bias in randomized trials, BMJ, vol.343, p.5928, 2011. ,
Sample size calculation for meta-epidemiological studies, Stat Med, vol.35, pp.239-50, 2016. ,
Epidemiology and reporting characteristics of systematic reviews, PLoS Med, vol.4, p.78, 2007. ,
Predicting the extent of heterogeneity in meta-analysis, using empirical data from the Cochrane Database of Systematic Reviews, Int J Epidemiol, vol.41, pp.818-845, 2012. ,
Statistical Power Analysis for the Behavioral Sciences, 2013. ,
Sensitivity subgroup analysis based on single-center vs. multi-center trial status when interpreting meta-analyses pooled estimates: the logical way forward, J Clin Epidemiol, vol.74, pp.80-92, 2016. ,
Comparison of intervention effects in split-mouth and parallelarm randomized controlled trials: a meta-epidemiological study, BMC Med Res Methodol, vol.14, p.64, 2014. ,
Empirical evaluation of which trial characteristics are associated with treatment effect estimates, J Clin Epidemiol, vol.77, pp.24-37, 2016. ,
Real-world effectiveness of new medicines should be evaluated by appropriately designed clinical trials, J Clin Epidemiol, vol.63, pp.1053-58, 2010. ,
Single-center trials show larger treatment effects than multicenter trials: evidence from a meta-epidemiologic study, Ann Intern Med, vol.155, pp.39-51, 2011. ,
Impact of single centre status on estimates of intervention effects in trials with continuous outcomes: metaepidemiological study, BMJ, vol.344, p.813, 2012. ,
Influence of trial sample size on treatment effect estimates: metaepidemiological study, BMJ, vol.346, p.2304, 2013. ,