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Fig. 2 | Trials

Fig. 2

From: Estimating relative risks in multicenter studies with a small number of centers — which methods to use? A simulation study

Fig. 2

Root mean square error of β1 for scenarios under randomized controlled trial study designs (a–c) and observational study designs (d–f) based on 1000 simulations for each scenario. All scenarios used a β1 of log(1.5), a control outcome rate of 15%, and an intracluster correlation coefficient of 0.08. GEE Generalized estimating equation, GLM-Bin Log-binomial regression model, GLMM Generalized linear mixed model

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Trials

ISSN: 1745-6215