Table 1 Patient characteristics of the ICU sample (n = 1205)
|  | Tracheostomy (n = 659) | Non-tracheostomy (n = 546) | p value | Missing (n) |
|---|---|---|---|---|
Age (years), mean (± SD) | 56.41 (± 14.87) | 56.01 (± 16.89) | 0.663 | 0 |
Sex | ||||
 Men, n (%) | 454 (69%) | 368 (67%) | 0.580 | 0 |
 Women, n (%) | 205 (31%) | 178 (33%) | ||
BMI (kg/m2), mean (± SD) | 29.62 (± 9.34) | 28.29 (± 6.94) | 0.010* | 154 |
Severity of ARDSa | ||||
 Mild, n (%) | 46 (9%) | 44 (10%) | 0.711 | 273 |
 Moderate, n (%) | 224 (44%) | 182 (42%) | ||
 Severe, n (%) | 238 (47%) | 211 (48%) | ||
SAPSb, mean (± SD) | 65 (± 41.36) | 51 (± 41.02) | 0.655 | 124 |
SOFA scorea, mean (± SD) | 8.46 (± 3.58) | 8.10 (± 3.34) | 0.098 | 148 |
Duration of ICU stay, days, median (IQR) | 30 (20–44) | 15 (10–23) | < 0.001* | 44 |