Table 2

Crude 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

FemalesMales
Education
 <8 yrs11
 8–11 yrs0.59 (0.44–0.79)0.53 (0.40–0.70)
 >11 yrs0.42 (0.20–0.89)0.52 (0.33–0.82)
Housing
 No central heating11
 Central heating0.75 (0.56–1.02)§0.73 (0.56–0.94)
 <1 Room per person11
 ≥1 Room per person1.16 (0.43–3.12)0.52 (0.32–0.86)
Employment grade
 Managers11
 Salaried employees1.13 (0.55–2.29)1.17 (0.66–2.08)
 Skilled labour1.82 (0.24–14.15)1.53 (0.91–2.59)
 Unskilled labour1.53 (0.76–3.07)2.33 (1.52–3.53)
 Outside work-force1.76 (0.95–3.29)2.37 (1.67–3.37)
 Blue collar#11
 White collar#0.71 (0.43–1.15)0.52 (0.37–0.74)
 Outside workforce1.15 (0.75–1.75)1.19 (0.86–1.64)
Gross income
 Personal income
  Per 50000 DKR0.94 (0.86–1.03)ƒ0.81 (0.76–0.87)
 Household income+
  Per 100000 DKR1.00 (0.85–1.17)0.96 (0.76–0.97)
Family type
 Living alone11
 Cohabitating0.97 (0.74–1.28)0.60 (0.47–0.77)
  • Data are presented as RR (95% confidence interval)

  • #: blue-collar comprised skilled and unskilled labour

  • white-collar comprised managers and salaried employees including self-employed and assistant wives

  • : 8 DKR is ∼1

  • +: subjects living alone excluded

  • §: after adjustment for education, p=0.15

  • ƒ: after adjustment for education, p=0.88

  • Results from Cox regression analyses adjusted for age and cohort of origin