Parents education | n | Crude HR (95% CI) | Model 1 HR adjusted (95% CI) | Model 2 HR adjusted (95% CI) | Event n (%) |
Primary | 318 130 | 1.12 (1.08 to 1.17) | 1.09 (1.04 to 1.14) | 1.00 (0.96 to 1.05) | 17 522 (5.5) |
Secondary | 133 287 | 1.08 (1.01 to 1.16) | 1.06 (0.99 to 1.14) | 1.01 (0.94 to 1.08) | 6516 (4.9) |
University | 41 188 | 0.81 (0.68 to 0.97) | 0.82 (0.69 to 0.98) | 0.79 (0.66 to 0.95) | 1278 (3.1) |
Crude analysis: unadjusted model.
Model 1: adjusted for sex, year of birth, country of birth (two groups), maternal age (six groups), highest level of parents SEI (seven groups) and any of the parent’s registered inpatient care and cause of death due to alcohol-related health problems.
Model 2: additionally stratified for population density of locality (10 groups).