Power by inconsistency factor, frequency of events and loop sample size. Power is presented for different sample sizes (small, moderate and large) assuming equal number of trials per comparison (KAB = KAC = KBC = K = 1, …, 7). Results are aggregated over different assumptions for heterogeneity and methods to estimate the variance of the mean treatment effect. The first summary result in each power curve pertains to the case where there is a single trial per comparison and a fixed-effects model is employed. IF: inconsistency factor.