Effect of variables reflecting acuity and comorbidity on outcome
| Odds of Death | Odds of Worse Outcome at Hospital Discharge (Four-Level Scale) | |
|---|---|---|
| Admission type | ||
| (Emergency versus urgent versus elective) | 1.38 (0.35–5.42) | 1.84 (1.10–3.08) |
| P = 0.6 | P = 0.02 | |
| Admission source | ||
| Emergency room versus routine | (No deaths)* | 4.90 (1.66–14.4) |
| P = 0.009 | ||
| Transfer from another hospital versus routine | (No deaths)* | 2.85 (0.89–9.1) |
| P = 0.08 | ||
| Surgery not done on day of admission to hospital | 2.11 (0.33–13.5) | 4.87 (2.08–11.4) |
| P = 0.4 | P < 0.001 | |
| Summed comorbidity score (per point) | 1.08 (0.58–2.02) | 1.26 (0.98–1.61) |
| P = 0.8 | P = 0.07 |
↵* Regression coefficients for these variables were undefined because all deaths occurred in one subgroup.