| Overall, n = 1657 | ARDS at mechanical ventilation onset, n = 334 | ARDS after mechanical ventilation onset, n = 180 | No ARDS, n = 1143 | p value |
---|---|---|---|---|---|
Death 90 days, n (%) | 810 (48.9%) | 187 (56.0%) | 99 (55.3%) | 524 (46.0%) | < 0.01 |
Ventilator-free days, mean (SD) | 10.1 (10.7) | 7.7 (10.0) | 6.4 (8.6) | 11.3 (10.9) | < 0.001 |
ICU-free days, mean (SD) | 7.3 (8.9) | 5.5 (8.1) | 4.0 (6.6) | 8.4 (9.2) | < 0.001 |
Hospital-free days, mean (SD) | 11.1 (16.6) | 9.8 (16.1) | 7.3 (13.8) | 12.1 (17.1) | < 0.001 |