Table 2.
Demographic and disease-related factors related to outcomes of (1) 30-day readmission and (2) cost of hospitalization episode
| Logistic regression: 30-day readmission (n = 4620&) | Negative binomial regression: cost of hospitalization episode (n = 4673) | ||||
|---|---|---|---|---|---|
| Crude odds ratio | Adjusted odds ratio | Crude incidence ratio | Adjusted incidence ratio | ||
| HCV | No | REF | REF | REF | REF |
| Yes | 1.84 (1.42, 2.40) | 1.73 (1.31, 2.29) | 1.18 (1.14, 1.23) | 1.06 (1.02, 1.10) | |
| Sex | Female | REF | REF | REF | -- |
| Male | 0.95 (0.61, 1.47) | -- | 0.98 (0.93, 1.04) | -- | |
| LOS | ≤ 4 | REF | REF | REF | REF |
| > 4 | 1.45 (1.14, 1.84) | 1.36 (1.07, 1.73) | 1.25 (1.21, 1.29) | 1.19 (1.16, 1.22) | |
| Age | < 30 years | REF | REF | REF | REF |
| 30–39 | 0.69 (0.45, 1.06) | 0.66 (0.43, 1.02) | 0.96 (0.91, 1.00) | 0.97 (0.93, 1.01) | |
| 40–49 | 0.95 (0.65, 1.39) | 0.82 (0.56, 1.21) | 1.03 (0.98, 1.08) | 1.01 (0.97, 1.05) | |
| 50–59 | 1.48 (1.01, 2.17) | 1.19 (0.81, 1.77) | 1.07 (1.02, 1.13) | 1.02 (0.98, 1.07) | |
| 60–69 | 1.29 (0.79, 2.10) | 1.07 (0.65, 1.77) | 1.15 (1.08, 1.23) | 1.14 (1.08, 1.21) | |
| 70 + | 2.91 (1.64, 5.18) | 2.66 (1.48, 4.78) | 1.09 (0.99, 1.20) | 0.99 (0.91, 1.08) | |
| Race | White | REF | REF | REF | REF |
| Non-White** | 0.68 (0.53, 0.86) | 0.77 (0.60, 0.99) | 1.03 (1.00, 1.07) | 0.99 (0.97, 1.02) | |
| Liver diseaseѰ | No | REF | REF | REF | REF |
| Yes | 2.53 (1.53, 4.17) | 2.05 (1.21, 3.48) | 1.25 (1.15, 1.37) | 1.06 (0.98, 1.15) | |
| HIV/AIDSѰ | No | REF | -- | REF | REF |
| Yes | 1.12 (0.64, 1.96) | -- | 1.30 (1.21, 1.40) | 1.20 (1.12, 1.28) | |
| Modified ECM∞ | None | REF | REF | REF | REF |
| 1 or 2 | 1.24 (0.98, 1.57) | 1.33 (1.04, 1.71) | 0.89 (0.86, 0.92) | 0.88 (0.86, 0.91) | |
| 3 or 4 | 2.06 (0.26, 16.54) | 1.76 (0.21, 14.50) | 0.78 (0.55, 1.09) | 0.77 (0.58, 1.04) | |
| 30-day readmission | No | Not applicable | REF | REF | |
| Yes | 2.40 (2.28, 2.54) | 2.35 (2.22, 2.48) | |||
&53 people died during first admission, removed from analysis
**Non-white ethnicity includes African American, Hispanic, Asian, Pacific Islanders, Native American, and other races not defined as White
∞Modified Elixhauser Comorbidities exclude advanced liver disease and HIV/AIDS from the sum variable; both are included individually in the model
“--” indicates that a predictor was excluded from the adjusted model due to p value of 0.25 in the crude model