Table 2

HRs for risk factors and effect of adjustment for single risk factors on the relative index of inequality for mortality by head of household social class at age 26 obtained using Cox's proportional hazards regression

All-cause mortality
Adjustment variablesHR for risk factor, sex adjusted (95% CI)Relative index of inequality (95% CI)% Change in relative index of inequality
Sex (base model)0.84 (0.64 to 1.12)1.97 (1.18 to 3.28)Baseline
Early life indicators (age 4)
 Father's social class1.09 (0.80 to 1.50)1.86 (1.08 to 3.21)−8.3
 Mother's education1.30 (0.87 to 1.94)1.77 (1.04 to 3.02)−15.8
Early adulthood indicators (age 26)
 Educational qualifications1.20 (0.88 to 1.64)1.71 (0.97 to 3.01)−21.2
 Home ownership1.44 (1.08 to 1.94)1.74 (1.04 to 2.93)−18
 Cigarette smoking (pack-years)1.02 (1.02 to 1.03)1.40 (0.82 to 2.37)−50.8
  • Based on 195 deaths, 2132 study members, and mortality between ages 26 and 66.