Table 3.
Multivariate Logistic Regression Analysis of Variables Significantly Associated with Risk of In-Hospital Death and Postoperative Complications
| Variable | ORa | 95% CIb | P Value |
|---|---|---|---|
| In-hospital death | |||
| Age group ≥ 80 years | 2.97051 | [2.22332,3.9688] | < 0.0001 |
| Female | 0.58008 | [0.55220–0.6094] | < 0.0001 |
| Emergency/urgent admission | 0.11309 | [0.10627–0.1203] | < 0.0001 |
| Medium bed size | 1.13505 | [1.04606–1.2316] | 0.00236 |
| Large bed size | 1.20576 | [1.11979–1.2983] | < 0.0001 |
| Teaching hospital | 1.12946 | [1.07281–1.1891] | < 0.0001 |
| Urban hospital location | 0.91320 | [0.85014–0.9809] | 0.01288 |
| Frail | 5.09046 | [3.9917–6.44707] | < 0.0001 |
| Charlson comorbidity index = 1 | 1.16483 | [0.1909–7.10789] | 0.86867 |
| Charlson comorbidity index = 2 | 1.01096 | [0.1607–6.35993] | 0.99073 |
| Charlson comorbidity index ≥ 3 | 1.88958 | [0.3041–11.74262] | 0.49478 |
| Surgical complications | |||
| 40 to 64 years | 0.17026 | [0.13909–0.20842] | < 0.0001 |
| 65 to 80 years | 0.07460 | [0.05996–0.09281] | < 0.0001 |
| > 80 years | 0.05248 | [0.04036–0.06826] | < 0.0001 |
| Female | 0.57444 | [0.50722–0.65057] | < 0.0001 |
| Emergency/urgent admission | 0.19200 | [0.16757–0.21999] | < 0.0001 |
| Medium bed size | 1.13505 | [1.04606–1.2316] | 0.00236 |
| Large bed size | 1.20576 | [1.11979–1.2983] | < 0.0001 |
| Teaching hospital | 2.11839 | [1.85358–2.42104] | < 0.0001 |
| Urban hospital location | 1.63107 | [1.25291–2.12337] | 0.00028 |
| Frail | 4.43661 | [1.60858–12.23655] | 0.00400 |
| Charlson comorbidity index = 1 | 0.37590 | [0.03719–3.79894] | 0.40707 |
| Charlson comorbidity index = 2 | 0.34613 | [0.03080–3.88964] | 0.39004 |
| Charlson comorbidity index ≥ 3 | 0.76419 | [0.07303–7.99691] | 0.82237 |
| Medical complications | |||
| 40 to 64 years | 1.64373 | [1.53057–1.76525] | < 0.0001 |
| 65 to 80 years | 2.09409 | [1.95107–2.24759] | < 0.0001 |
| > 80 years | 4.15499 | [3.86966–4.46135] | < 0.0001 |
| Female | 0.79571 | [0.78688–0.80465] | < 0.0001 |
| Emergency/urgent admission | 0.33972 | [0.33555–0.34393] | < 0.0001 |
| Medium bed size | 1.18791 | [1.16748–1.20869] | < 0.0001 |
| Large bed size | 1.22394 | [1.20499–1.24318] | < 0.0001 |
| Teaching hospital | 1.14781 | [1.13486–1.16091] | < 0.0001 |
| Urban hospital location | 1.04192 | [1.02415–1.06001] | < 0.0001 |
| Frail | 2.00216 | [1.81372–1.90562] | < 0.0001 |
| Charlson comorbidity index = 1 | 3.09695 | [1.58599–2.21624] | < 0.0001 |
| Charlson comorbidity index = 2 | 4.79525 | [2.46746,3.43978] | < 0.0001 |
| Charlson comorbidity index ≥ 3 | 18.30816 | [9.44622, 13.15078] | < 0.0001 |
aOR Odds Ratio
bCI Confidence Interval