Table 1 Baseline patient characteristics
Characteristic | All patients (N = 795) | 1-year survivors (N = 388) | 1-year non-survivors (N = 407) | P value |
|---|---|---|---|---|
Age—years [SD] | 55.4 [16.8] | 50.2 [15.6] | 60.4 [16.4] | <0.001 |
Female—no. (%) | 300 (37.7) | 148 (38.1) | 152 (37.4) | 0.8168 |
APACHE II score [SD]a | 21.8 [6.1] | 20.3 [5.7] | 23.2 [6.0] | <0.001 |
PaO2:FiO2 ratio—KPa [SD] | 15.1 [5.0] | 16.0 [5.2] | 14.2 [4.6] | <0.001 |
Prime condition: Pneumonia/pneumonitis—no. (%) | 466 (58.6) | 220 (56.7) | 246 (60.4) | 0.2849 |
Surgery admission—no. (%) | 108 (13.6) | 64 (16.5) | 44 (10.8) | 0.0194 |
ICU length of stay—days [SD] | 17.0 [16.5] | 19.7 [15.5] | 14.4 [16.9] | <0.001 |
Hospital length of stay—days [SD]b | 33.6 [43.1] | 47.2 [48.6] | 20.9 [32.3] | <0.001 |