TABLE 3.
Demographic and hospital-level predictors of in-hospital mortality in patients hospitalized for diverticulitis
| Characteristic | Mortality rate, % (95% CI) | Unadjusted OR (95% CI)* | Adjusted OR (95% CI)† |
|---|---|---|---|
| Age, years | |||
| <40 | 0.12 (0.09–0.15) | 1.00 | 1.00 |
| 40–59 | 0.49 (0.46–0.51) | 4.19 (3.25–5.40) | 3.48 (2.66–4.55) |
| ≥60 | 3.07 (3.02–3.13) | 26.99 (21.02–36.64) | 13.53 (10.28–17.82) |
| Sex | |||
| Male | 1.63 (1.59–1.68) | 1.00 | 1.00 |
| Female | 2.03 (1.99–2.07) | 1.25 (1.21–1.29) | 0.90 (0.87–0.94) |
| Race/ethnicity | |||
| Non-Hispanic white | 2.03 (1.99–2.07) | 1.00 | 1.00 |
| Black | 1.93 (1.80–2.06) | 0.95 (0.88–1.02) | 1.00 (0.91–1.09) |
| Hispanic | 1.28 (1.18–1.39) | 0.63 (0.58–0.68) | 0.85 (0.77–0.94) |
| Other/unavailable | 1.59 (1.53–1.64) | 0.78 (0.75–0.81) | 0.95 (0.91–1.01) |
| Comorbidity score‡ | 0.65 (0.62–0.68) | 1.45 (1.43–1.47) | 1.45 (1.43–1.47) |
| Health insurance | |||
| Private | 0.51 (0.49–0.54) | 1.00 | 1.00 |
| Medicare | 2.97 (2.92–3.02) | 5.94 (5.62–6.27) | 1.55 (1.42–1.69) |
| Medicaid | 1.11 (1.00–1.23) | 2.19 (1.95–2.45) | 1.90 (1.66–2.19) |
| Self-pay | 0.58 (0.49–0.67) | 1.14 (0.97–1.34) | 1.44 (1.19–1.74) |
| Other | 1.00 (0.85–1.14) | 1.95 (1.67–2.29) | 1.93 (1.62–2.29) |
| Admission type | |||
| Elective | 1.41 (1.37–1.46) | 1.00 | 1.00 |
| Urgent | 1.76 (1.69–1.82) | 1.25 (1.19–1.31) | 1.90 (1.76–2.06) |
| Emergent | 2.17 (2.13–2.22) | 1.55 (1.49–1.61) | 2.58 (2.40–2.78) |
| Surgery | |||
| No surgical treatment | 1.43 (1.40–1.46) | 1.00 | 1.00 |
| Partial or total colectomy | 3.54 (3.45–3.63) | 2.53 (2.45–2.61) | 3.60 (3.42–3.78) |
| Hinchey clasification | |||
| 0 | 1.70 (1.67–1.73) | 1.00 | 1.00 |
| I or II | 2.40 (2.28–2.52) | 1.42 (1.35–1.50) | 1.18 (1.11–1.26) |
| III or IV | 8.63 (8.15–9.11) | 5.46 (5.12–5.82) | 3.07 (2.82–3.34) |
| Region | |||
| Northeast | 2.12 (2.05–2.19) | 1.00 | 1.00 |
| Midwest | 1.74 (1.69–1.80) | 0.82 (0.78–0.86) | 0.82 (0.76–0.88) |
| South | 1.74 (1.69–1.78) | 0.82 (0.78–0.85) | 0.79 (0.74–0.84) |
| West | 2.05 (1.97–2.13) | 0.97 (0.92–1.02) | 0.83 (0.76–0.91) |
| Quarter of admission | |||
| January to March | 1.90 (1.85–1.95) | 1.00 | 1.00 |
| April to June | 1.81 (1.75–1.87) | 0.95 (0.91–1.00) | 0.96 (0.92–1.02) |
| July to September | 1.78 (1.72–1.84) | 0.94 (0.90–0.98) | 0.96 (0.91–1.01) |
| October to December | 1.99 (1.92–2.05) | 1.05 (1.01–1.10) | 1.07 (1.01–1.13) |
| Calendar year | N/A | 0.96 (0.96–0.97) | 0.96 (0.95–0.96) |
*
Unadjusted analysis does not account for effect of clustering;
†
Adjusted for age, sex, race, comorbidity index score, health insurance, admission type, Hinchey classification, calendar year of admission, colectomy and effect of clustering;
‡
Mortality rate, unadjusted OR and adjusted OR for each additional point on comorbidity score. N/A Not applicable