Skip to main content

Table 2 Ventilatory parameters within 24 h of meeting ARDS criteria on mechanical ventilation in the two cohorts

From: Temporal changes in the epidemiology, management, and outcome from acute respiratory distress syndrome in European intensive care units: a comparison of two large cohorts

 

SOAP study

ICON audit

p value

n*

 

n*

 

Respiratory rate, mean ± SD

 

24 ± 21

 

23 ± 10

0.129

Tidal volume, ml/kg PBW, mean ± SD

322

10.3 ± 2.8

465

9.0 ± 2.1

< 0.001

 < 6 ml/kg PBW, n (%)

 

8 (2.5)

 

14 (3.0)

0.660

 6–8 ml/kg PBW, n (%)

 

50 (15.5)

 

151 (32.5)

< 0.001

 8.1–10 ml/kg PBW, n (%)

 

113 (35.1)

 

183 (39.4)

0.225

 > 8 ml/kg PBW, n (%)

 

264 (82.0)

 

300 (64.5)

< 0.001

 > 10 ml/kg PBW, n (%)

 

151 (46.9)

 

117 (25.2)

< 0.001

PEEP, cmH2O, mean ± SD

327

8.1 ± 3.4

494

7.6 ± 2.9

< 0.001

 5–9 cmH2O, n (%)

 

209 (63.9)

 

354 (71.7)

0.019

 10–14 cmH2O, n (%)

 

96 (29.4)

 

126 (25.5)

0.224

 ≥ 15 cmH2O, n (%)

 

22 (6.7)

 

14 (2.8)

0.008

Plateau pressure, cmH2O, mean ± SD

284

28.0 ± 7.5

396

23.5 ± 7.1

< 0.001

 > 29 cmH2O, n (%)

 

116 (40.8)

 

80 (20.2)

< 0.001

Driving pressure, cmH2O, mean ± SD

284

19.9 ± 7.1

396

16.1 ± 6.1

< 0.001

 > 14 cmH2O, n (%)

 

219 (77.1)

 

236 (59.6)

< 0.001

  1. PBW predicted body weight, PEEP positive end-expiratory pressure, SD standard deviation
  2. *Number of patients with recorded values, excluding missing values
  3. Valid percentage after excluding missing values