Figure 3.

Contour-enhanced funnel plots for predictors of patient survival.

Results are shown for (A) recipient sex, (B) donor sex, (C) pretransplant DM, (D) recipient age, (E) recipient race. Each dot represents a result from an individual study. The y-axis portrays the standard error of the effect estimate. The x-axis shows the study's effect estimate, expressed as HR. The superimposed lines represent regions where a test of the effect estimate is statistically significant. Different colors represent varying levels of statistical significance (e.g., <0.01, 0.01–0.05, 0.05–0.1, >0.1).