Poisson regression analyses for length of hospital stay
| Poisson analysis | Parameter | Male | SIMD 1 | SIMD 2 | SIMD 3 | SIMD 4 | SIMD 5 | SIMD 6 | SIMD 7 | SIMD 8 | SIMD 9 | Age | CCI 1 to 2 | CCI 3 to 4 | CCI >4 |
| All patients | OR | 0.87 | 1.11 | 1.10 | 1.10 | 1.10 | 1.08 | 1.08 | 1.07 | 1.06 | 1.03 | 1.02 | 1.35 | 1.51 | 1.69 |
| Lower 95% CI | 0.87 | 1.11 | 1.09 | 1.10 | 1.09 | 1.08 | 1.07 | 1.06 | 1.05 | 1.02 | 1.02 | 1.35 | 1.51 | 1.68 | |
| Upper 95% CI | 0.87 | 1.12 | 1.10 | 1.10 | 1.10 | 1.09 | 1.08 | 1.07 | 1.06 | 1.03 | 1.02 | 1.36 | 1.52 | 1.69 | |
| Operative patients | OR | 0.85 | 1.13 | 1.08 | 1.08 | 1.06 | 1.06 | 1.07 | 1.06 | 1.03 | 1.03 | 1.02 | 1.32 | 1.35 | 1.71 |
| Lower 95% CI | 0.85 | 1.12 | 1.08 | 1.07 | 1.05 | 1.05 | 1.06 | 1.06 | 1.02 | 1.02 | 1.02 | 1.31 | 1.34 | 1.70 | |
| Upper 95% CI | 0.86 | 1.14 | 1.09 | 1.09 | 1.07 | 1.06 | 1.07 | 1.07 | 1.03 | 1.04 | 1.02 | 1.32 | 1.36 | 1.73 |
Reference variables: Female; SIMD 10; CCI 0.
CCI, Charlson Comorbidity Index; SIMD, Scottish Index of Multiple Deprivation.