Zachary L. Steinberg et al. JACC 2017;69:2681-2691 Forest Plot of the Composite Maternal Outcome The individual and composite maternal endpoints as reported by each publication included in the meta-analysis. The forest plot represents an averaged risk of the composite outcome, weighted by study sample size. *Values in brackets are number of deaths, number of prosthetic valve failures or thromboembolisms. CI = confidence interval; VKA = vitamin K antagonist; other abbreviations as in Figure 1. Zachary L. Steinberg et al. JACC 2017;69:2681-2691 2017 The Authors