Age-adjusted mean or prevalence of major CHD risk factors at baseline, by occupational class (N=2964 subjects CHD-free at baseline)
| EGP class | N | Age | Systolic BP (mm Hg) | Total chol (mg/dl) | HDL-chol (mg/dl) | Current cigarette smokers (%) | Diabetes mellitus (%) | Heavy drinkers* (%) | Sport PAI† | PJD/DL ratio† |
| Administrators and professionals | 517 | 46.5 | 132.9 | 221.8 | 49.2 | 30.2 | 6.0 | 18.8 | 2.59 | 0.43 |
| Non-manual workers | 783 | 43.7 | 134.5 | 219.5 | 50.3 | 31.9 | 3.9 | 16.9 | 2.51 | 0.44 |
| Manual workers | 1108 | 48.4 | 134.7 | 218.7 | 51.2 | 42.7 | 6.9 | 30.4 | 2.28 | 0.61 |
| Self-employed | 556 | 47.2 | 136.3 | 221.2 | 51.0 | 39.8 | 6.9 | 33.1 | 2.48 | 0.39 |
| p Value‡ | – | <0.0001 | 0.01 | 0.45 | 0.03 | <0.0001 | 0.08 | <0.0001 | <0.0001 | <0.0001 |
* Alcohol intake ≥50 g/day (four standard drinks).
† Subset of currently employed subjects, free from CHD at baseline, with data on sport physical activity (N=1441).
‡ Heterogeneity, Wald test p value.
BP, blood pressure; CHD, coronary heart disease; chol, cholesterol; DL, decision latitude; EGP, Erikson–Goldthorpe–Portocarero class scheme; HDL, high density lipoprotein; PAI, physical activity index; PJD, psychological job demand.