No infection on admission, no ICU-acquired infection (N = 49) | No infection on admission, but ICU-acquired infection (N = 35) | Infection on admission, no ICU-acquired infection (N = 206) | Infection on admission, also ICU-acquired infection (N = 45) | P value | |
---|---|---|---|---|---|
Total TISS scorea | 170 (130–274) | 324 (255–510) | 197 (136–278) | 668 (397–1,013) | <0.001 |
LOS in ICU (days) | 3 (2.2–5.3) | 7.6 (5.5–11.2) | 4 (2.8–5.9) | 14 (7–21.6) | <0.001 |
LOS in hospital (days) | 17 (8–25.5) | 18 (12–33) | 16 (9–27) | 31 (24–43) | <0.001 |
ICU mortality | 1 (2.0) | 3 (8.6) | 12 (5.8) | 4 (8.9) | 0.43 |
Total hospital mortality | 3 (6.1) | 9 (25.7) | 35 (17) | 16 (35.6) | 0.002 |
Observed/predicted mortalityb | 0.15 (0.03–0.44) | 0.75 (0.34–1.42) | 0.35 (0.25–0.49) | 0.70 (0.40–1.13) |