Figure 1

Kaplan-Meier estimates of cumulative probabilities of 6-month survival for patients in PRESERVE groups 1 (0-2 points, n = 17), 2 (3-4 points, n = 13), 3 (5-6 points, n = 16) and 4 (≥7 points, n = 5). ECMO, extracorporeal membrane oxygenation; PRESERVE, Predicting Death for Severe ARDS on VV-ECMO.