Table 3.
Coefficients, odds ratios and incidence rate ratios for regression models of the outcomes length of stay and emergency readmission within 30 days
| Characteristic | Length of stay (incidence rate ratio) (95% confidence interval) | Emergency readmission within 30 days (Odds ratio) (95% confidence interval) |
|---|---|---|
| Age band | ||
| 16–44 years | 1 (reference) | 1 (reference) |
| 45–54 years | 1.15 (1.14–1.15) | 1 (0.98–1.03) |
| 55–64 years | 1.19 (1.19–1.2) | 1.07 (1.04–1.09) |
| 65–74 years | 1.2 (1.2–1.21) | 1.16 (1.13–1.18) |
| 75–84 years | 1.18 (1.18–1.19) | 1.19 (1.16–1.21) |
| 85 years and over | 1.19 (1.18–1.2) | 1.21 (1.18–1.23) |
| Sex (missing 171) | ||
| Female | 1 (reference) | 1 (reference) |
| Male | 1.05 (1.05–1.05) | 1.07 (1.06–1.09) |
| Deprivation quintile | ||
| 5 (least deprived) | 1 (reference) | 1 (reference) |
| 4 | 1.00 (1.00–1.01) | 1.02 (1.00–1.03) |
| 3 | 1.01 (1.00–1.01) | 1.04 (1.02–1.06) |
| 2 | 1.00 (0.99–1.00) | 1.07 (1.05–1.09) |
| 1 (most deprived) | 0.99 (0.99–1.00) | 1.10 (1.08–1.12) |
| Ethnicity (missing 49,533) | ||
| White | 1 (reference) | 1 (reference) |
| Asian or Asian British | 1.01 (1–1.01) | 0.85 (0.83–0.88) |
| Black or Black British | 1.12 (1.11–1.13) | 0.87 (0.84–0.9) |
| Mixed | 1.09 (1.07–1.11) | 0.92 (0.85–0.98) |
| Other/not stated | 1.09 (1.08–1.09) | 0.87 (0.86–0.89) |
| Charlson Comorbidity Index | ||
| 0 | 1 (reference) | 1 (reference) |
| 1 | 1.14 (1.13–1.14) | 1.16 (1.14–1.18) |
| 2 | 1.23 (1.22–1.23) | 1.3 (1.28–1.32) |
| 3 | 1.3 (1.3–1.31) | 1.39 (1.36–1.42) |
| 4 and over | 1.39 (1.38–1.4) | 1.68 (1.65–1.71) |
| Hospital Frailty Risk Score | ||
| None | 1 (reference) | 1 (reference) |
| Mild | 1.45 (1.44–1.46) | 1.4 (1.37–1.42) |
| Moderate | 2.65 (2.63–2.66) | 2 (1.96–2.04) |
| Severe | 3.74 (3.72–3.77) | 2.61 (2.55–2.66) |