Figure 1. Survival curves of the effects of thrombocytopenia and acute respiratory distress syndrome (ARDS) on 60-day mortality.

Univariate survival analyses show Kaplan-Meier curves of thrombocytopenia (platelet count <80×10³/µL) and ARDS development on 60-day mortality among critically ill patients at-risk for ARDS in the Beijing cohort (upper panel, p = 0.05) and the Boston cohort (lower panel, p<0.0001). Blue: non-thrombocytopenia & non-ARDS; red: thrombocytopenia & non-ARDS; green: non-thrombocytopenia & ARDS; orange: thrombocytopenia & ARDS.