Table 3 Standardized mortality ratios for the four systems by reason of admission and source of admission
All patients | Patient s with LOS ≥ 24 h | Standardized mortality ratio (95% confidence interval) | ||||||
|---|---|---|---|---|---|---|---|---|
Subcategory | N | Died | N | Died | MPM II0 | MPM II24 | APACHE II | SAPS II |
Reason for admission | ||||||||
Respiratory | 156 | 46 | 132 | 39 | 1.21 (0.92–1.50) | 1.07 (0.79–1.35) | 0.93 (0.69–1.18) | 1.29 (0.95–1.63) |
Cardiovascular | 222 | 132 | 152 | 82 | 1.07 (0.96–1.19) | 0.98 (0.84–1.12) | 0.99 (0.84–1.13) | 1.05 (0.90–1.21) |
Neurological | 58 | 20 | 43 | 16 | 0.91 (0.59–1.23) | 0.96 (0.59–1.33) | 1.17 (0.72–1.62) | 1.39 (0.85–1.93) |
Other medical | 87 | 41 | 63 | 32 | 1.02 (0.79–1.25) | 1.05 (0.80–1.31) | 1.05 (0.79–1.31) | 1.32(1.00–1.63) |
Non-op. trauma | 146 | 24 | 126 | 18 | 0.73 (0.46–0.99) | 0.60 (0.34–0.85) | 1.09 (0.62–1.56) | 0.73 (0.42–1.04) |
Op. trauma | 52 | 11 | 37 | 6 | 0.83 (0.40–1.27) | 0.75 (0.20–1.30) | 1.21 (0.32–2.10) | 0.75 (0.20–1.31) |
Post-op. | 241 | 30 | 127 | 21 | 0.79 (0.53–1.05) | 0.79 (0.48–1.10) | 0.89 (0.54–1.24) | 1.04 (0.64–1.45) |
Source of admission | ||||||||
Emergency room | 312 | 87 | 224 | 53 | 0.89 (0.73–1.05) | 0.77 (0.59–0.95) | 0.94 (0.72–1.16) | 0.93 (0.71–1.14) |
Floor | 292 | 149 | 228 | 107 | 1.11 (0.99–1.24) | 1.02 (0.88–1.16) | 1.02 (0.88–1.16) | 1.18 (1.01–1.34) |
Operating room | 307 | 52 | 179 | 38 | 0.89 (0.67–1.11) | 0.85 (0.61–1.08) | 1.01 (0.72–1.29) | 1.06 (0.76–1.36) |
Other hospital | 58 | 22 | 50 | 17 | 1.21 (0.81–1.61) | 1.21 (0.75–1.68) | 1.09 (0.67–1.51) | 1.29 (0.79–1.79) |