Fig. 3From: Association of elastic power in mechanical ventilation with the severity of acute respiratory distress syndrome: a retrospective studyModerate-severe ARDS incidence as expressed in elastic power (EP) quartile. Corresponding quartile cut-of values are shown in Table 1. Moderate-severe ARDS incidence is higher in Q4 compared to Q1. Different letters represent significant differences between different groups (P < 0.05). Q1, Q2, Q3, and Q4 are quartiles of the EPBack to article page