Secondary outcomes in ARDS by weight
| Outcome | Underweight (n = 22) | Normal (n = 178) | Overweight (n = 186) | Obese (n = 120) | Severely obese (n = 39) | p Value |
| ICU mortality | 9 (45%) | 54 (32%) | 56 (31%) | 30 (25%) | 13 (33%) | 0.3 |
| Ventilator-free days | 1.5 (0–14) | 4.0 (0–11) | 5.0 (0–10) | 5.0 (0–15) | 8.0 (0–13) | 0.6 |
| ICU length of stay in days | 13.5 (6–19) | 13 (7–23) | 10 (6–19) | 15.5 (7–26.5) | 13 (9–26) | 0.02 |
| Hospital length of stay in days | 18 (6–34) | 20 (10–55) | 16 (9–39) | 27 (12–27) | 28 (12–60) | 0.007 |
Values are given as the median (25–75%).
ARDS, acute respiratory distress syndrome; ICU, intensive care unit.