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. 2023 Nov;10(3):278–286. doi: 10.7861/fhj.2023-0014

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)