FIGURE 2.

High platelet:RBC ratio improves 24‐h and 30‐day mortality in randomized controlled trials compared with low platelet:RBC ratio. Meta‐analyses of (A) 24‐h and (B) 30‐day mortality represented in a forest plot. Weighted mean platelet:red blood cell ratio in the high ratio group was 0.85 (SD 0.56) and in the low platelet dose group 0.40 (0.27). Events = number of deceased, total = total number of patients, high = group with highest platelet:RBC ratio, low = group with lowest platelet:RBC ratio, M‐H = Mantel–Haenszel. Risk of bias was assessed for (A) random sequence generation, (B) allocation concealment, (C) blinding of participants and personnel, (D) blinding of outcome assessment, (E) incomplete outcome data, (F) selective reporting. + = low risk, − = high risk, ? = unknown risk