Patient outcome* | ICU model | p value | |
---|---|---|---|
 | Open (n = 277) | Closed (n = 482) |  |
Day 3 tidal volume | Â | Â | Â |
   Mean (mL/Kg) | 10.8 (2.9) | 9.3 (2.3) | < 0.001 |
   ≤ 6.5 mL/kg (%) | 5 | 11 | 0.004 |
   < 8 mL/kg (%) | 16 | 28 | < 0.001 |
   ≥ 12 mL/kg (%) | 31 | 10 | < 0.001 |
Presence in charted differential diagnosis (%) | Â | Â | Â |
   Acute lung injury | 34 | 37 | 0.47 |
   Acute lung injury or oedema | 46 | 47 | 0.83 |
Height measured (%) | 81 | 80 | 0.90 |
Weight measured (%) | 99 | 99 | 1.00 |
Plateau pressure measured by day 3 (%) | 69 | 80 | < 0.001 |
Day 3 plateau pressure, mmHg‡ | 27 (8) | 25 (8) | < 0.001 |
Day 3 PEEP, median (IQR) †| 5 (5 to 8) | 5 (5 to 10) | 0.22 |