Fig. 4
From: Using median survival in meta-analysis of experimental time-to-event data
Grouped plots showing sensitivity of meta-regression to detect the influence of each variable at univariate (A; α = 0.005) and multivariate (B; α = 0.05) stages. Each plot shows the proportion of significant associations (α as specified above) versus the meta-analysis size. Blue plots denote HR-based meta-regression, red denotes MSR-based meta-regression; Var1-5 represent the categorical variables, Bin1-2 represent the binary variables and Cont1-2 represent the continuous variables