Table 3 Crude and adjusted hazard ratios (HR) of death in all ventilated patients (derived using Cox proportional hazard regression models)
Cohort | Crude HR (95 % CI) | Adjusted HR (95 % CI) |
|---|---|---|
ESRD | ||
 Yes | 1.47 (1.36–1.57) | 1.43 (1.33–1.54) |
 No | 1.00 | 1.00 |
Age (years) | ||
 0–50 | 1.00 | 1.00 |
 50–64 | 1.51 (1.37–1.66) | 1.50 (1.36–1.65) |
 ≧65 | 2.18 (1.99–2.38) | 2.03 (1.85–2.23) |
Sex | ||
 Female | 1.00 (0.95–1.05) | 0.94 (0.89–0.99) |
 Male | 1.00 | 1.00 |
Comorbidity | ||
 Diabetes | 1.30 (1.24–1.36) | 1.18 (1.13–1.25) |
 Hypertension | 1.10 (1.05–1.16) | 0.99 (0.94–1.05) |
 Coronary artery disease | 1.00 (0.95–1.06) | 0.93 (0.88–1.01) |
 Liver cirrhosis | 1.90 (1.77–2.04) | 1.61 (1.50–1.74) |
 COPD | 1.20 (1.12–1.28) | 1.01 (0.95–1.08) |
 Cancer | 1.33 (1.24–1.41) | 1.49 (1.39–1.59) |
 Stroke | 1.28 (1.21–1.34) | 1.26 (1.19–1.33) |
 CHF | 1.24 (1.17–1.32) | 1.17 (1.10–1.25) |
Department to which admitted | ||
 Surgery | 0.50 (0.47–0.53) | 0.64 (0.60–0.68) |
 Medical | 1.00 | 1.00 |
Number of organ failures (other than lungs and kidneys) | ||
 0 | 1.00 | 1.00 |
 1 | 2.14 (2.03–2.26) | 1.85 (1.75–1.95) |
 ≥2 | 2.79 (2.41–3.23) | 2.46 (2.12–2.86) |
Ventilator duration (days) (continuous) | 1.00 (1.00–1.00) | 1.00 (1.00–1.00) |
ICU stay (days) (continuous) | 1.00 (1.00–1.00) | 1.00 (1.00–1.01) |
Hospital stay (days) (continuous) | 0.99 (0.99–1.00) | 1.00 (0.99–1.00) |