Figure 6.

Indirect comparisons of proportional effects of different antiplatelet regimens on vascular events in high risk patients (excluding those with acute stroke). Only meta-analyses involving 500 or more high risk patients are shown. *Some trials contributed to more than one comparison. †Includes indobufen, flurbiprofen, GR32191B, dazoxiben, and trapidil. Stratified ratio of odds of an event in treatment groups to that in control groups is plotted for each group of trials (black square) along with its 99% confidence interval (horizontal line). Meta-analysis of results for each main comparison and for all trials (and 95% confidence interval) is represented by an open diamond. Adjusted control totals have been calculated after converting any unevenly randomised trials to even ones by counting control groups more than once, but statistical calculations are based on actual numbers from individual trials