Early mortality in intermediate risk surgery (subgroup 2).

<p>Forrest plot showing risk ratio (95% CI) of studies comparing aprotinin vs. lysine analogues (tranexamic acid and/or aminocaproic acid, indicated by *) for in-hospital/30-day mortality in a subgroup of intermediate risk cardiac surgical patients sorted by randomised controlled trials (RCT), adjusted and unadjusted observational studies, respectively.