Factors associated with potentially avoidable hospitalisations (multivariate negative binomial models)
| Model 1 | Model 2 | Model 3 | Model 4 | |
|---|---|---|---|---|
| HCA level | IRR (95% CI) | IRR ( 95% CI) | IRR ( 95% CI) | IRR ( 95% CI) |
| Sex | 0.98 (0.90 to 1.06) | 0.98 (0.90 to 1.06) | 0.99 (0.95 to 1.04) | 1.00 (0.95 to 1.04) |
| Age group | 0.84 (0.75 to 0.95) | 0.84 (0.75 to 0.95) | 0.89 (0.83 to 0.96) | 0.93 (0.89 to 0.98) |
| Burden of disease | 1.12 (1.05 to 1.20) | 1.12 (1.05 to 1.18) | 1.07 (1.03 to1.13) | 1.06 (1.01 to 1.10) |
| Primary care supply | 0.96 (0.91 to 1.02) | – | – | |
| Intensity of hospitalisation | 1.15 (1.08 to 1.22) | 1.19 (1.13 to 1.26) | ||
| Distance to a hospital | 1.07 (1.04 to 1.10) | 1.03 (0.98 to 1.08) | ||
| AC level | σintercept | SE | ||
| 0.01 | 0.008 | |||
| LRT χ2 (p value) | 1.97 (p=0.16) | 37.99 (p<0.0001) | 15.50 (p<0.0001) |
Model 2, with primary care supply factor, included 191 HCAs given the lack of information in the Madrid AC.
AC, autonomous community; HCA, healthcare area; IRR, incidence rate ratio; LRT, likelihood ratio test.