Table 3.
Risk factors for inhospital mortality (multivariate analysis)
| OR (95% CI) | p Value | |
| Gender | ||
| Females | Reference | |
| Males | 2.12 (1.94 to 2.31) | <0.001 |
| Age, years | ||
| 60–69 | Reference | |
| 70–79 | 1.57 (1.25 to 1.96) | <0.001 |
| 80–89 | 2.28 (1.84 to 2.82) | <0.001 |
| ≥90 | 3.51 (2.83 to 4.37) | <0.001 |
| Treatment | ||
| Surgical | Reference | |
| Conservative | 4.25 (3.92 to 4.61) | <0.001 |
| Hospital size (number of acute beds) | ||
| ≤199 | Reference | |
| 200–399 | 0.99 (0.88 to 1.11) | 0.814 |
| 400–599 | 0.88 (0.77 to 1.00) | 0.043 |
| ≥600 | 0.93 (0.81 to 1.07) | 0.304 |
| Number of comorbidities | ||
| 0 | Reference | |
| 1 | 2.50 (2.28 to 2.74) | <0.001 |
| ≥2 | 3.79 (3.38 to 4.24) | <0.001 |