Adjusted relative risk (RR) of death from respiratory disease by indices of education, housing, employment grade, income, and family type in 13992 females and 12400 males in the Copenhagen Centre for Prospective Population Studies
| Females | Males | |
| Education# | ||
| <8 yrs | Ref | Ref |
| ≥8 yrs | 0.63 (0.47–0.86) | 0.72 (0.55–0.95) |
| Housing | ||
| <1 Room per person | Ref | Ref |
| ≥1 Room per person | 0.99 (0.37–2.68) | 0.51 (0.31–0.84) |
| Employment grade¶ | ||
| Blue collar | Ref | Ref |
| White collar | 0.94 (0.57–1.57) | 0.68 (0.47–0.99) |
| Outside workforce | 1.53 (0.94–2.48) | 0.94 (0.63–1.39) |
| Gross income | ||
| Personal income | ||
| Per 50000 DKR+ | 1.04 (0.91–1.19) | 0.88 (0.79–0.97) |
| Family type | ||
| Living alone | Ref | Ref |
| Cohabitating | 1.07 (0.79–1.45) | 0.67 (0.52–0.87) |
| Smoking | ||
| Never-smoker | Ref | Ref |
| Exsmoker | 2.96 (1.80–4.87) | 1.39 (0.77–2.51) |
| Current smoker | ||
| Noninhaler | 2.01 (1.23–3.27) | 1.12 (0.61–2.07) |
| 1–14 g·day−1 | 5.21 (3.23–8.41) | 2.42 (1.34–4.37) |
| 15–24 g·day−1 | 10.67 (6.62–17.23) | 3.19 (1.81–5.64) |
| >24 g·day−1 | 23.71 (12.30–45.73) | 4.68 (2.52–8.69) |
Data are presented as RR (95% confidence interval)
Ref: reference value
#: education groups 8–11 yrs and >11 yrs pooled because of similar RRs
¶: blue collar comprised skilled and unskilled labour
white-collar comprised managers and salaried employees including self-employed and assistant wives
+: 8 DKR is ∼1
Results from Cox regression analyses adjusted for age, cohort of origin and covariates in the table