Table 2 Ventilatory management on the first 24 h after ICU admission, according to outcome at 28 days

Tidal volume (mL/Kg ideal body weight), mean (SD)

6.5 ± 1.3

6.5 ± 1.3

6.5 ± 1.3

Minute volume (L/min), mean (SD)

12.0 ± 3.8

12.0 ± 4.1

12.0 ± 3.6

FIO₂ (%), median (IQR)

50 (40–60)

45 (35–60)

50 (40–65)

PEEP (cmH₂O), median (IQR)

10 (8–12)

10 (8–12)

10 (8–12)

Plateau pressure (cmH₂O), mean (SD)

22 ± 5

22 ± 5

23 ± 5

Driving pressure (cmH₂O), mean (SD)

13 ± 4

12 ± 4

13 ± 4

Compliance (mLcmH₂O⁻¹), median (IQR)

31.9 (24.4–40.9)

32.9 (25.0–42.0)

31.7 (23.4–40.0)

Compliance (mLcmH₂O⁻¹.Kg⁻¹ ibw), median (IQR)

0.51 (0.41–0.65)

0.54 (0.42–0.67)

0.50 (0.40–0.64)

PaO₂/FIO₂ (%), mean (SD)

171 ± 74

178 ± 73

165 ± 75

Arterial pH, mean (SD)

7.35 ± 0.09

7.37 ± 0.09

7.33 ± 0.10

Arterial PaCO₂ (mmHg), mean (SD)

44 ± 10

44 ± 9

45 ± 11

Arterial oxygen saturation (%), mean (SD)

93 ± 5

93 ± 4

92 ± 6

Rescue therapy for respiratory failure

 Prone position

154 (16)

82 (17)

72 (14)

 Recruitment maneuvers

15 (2)

8 (2)

7 (1)

 PEEP titration

111 (11)

61 (13)

50 (10)

 Inhaled nitric oxide

2 (0)

2 (0)

0 (0)

 Extracorporeal membrane oxygenation

4 (0)

1 (0)

3 (1)