Baseline characteristics of social positions in the Copenhagen Centre for Prospective Population Studies
| Executive managers/academics n = 2153 | Leading managers n = 2884 | Salaried employees n = 5395 | Skilled workers n = 2114 | Unskilled workers n = 3670 | Test for trend p value* | ||
|---|---|---|---|---|---|---|---|
| Values are percentages or mean. | |||||||
| *p values are from a non-parametric test for trend across ordered groups (np-trend). | |||||||
| Females | % | 18.8 | 36.8 | 66.4 | 5.3 | 52.5 | |
| Mean age, y | 50.5 | 49.3 | 48.3 | 49.9 | 49.5 | ||
| Heavy smokers: >15 g/day | % | 31.4 | 31.7 | 33.7 | 42.4 | 41.8 | <0.001 |
| Alcohol: >5 drinks/day | % | 12.0 | 13.3 | 16.9 | 25.3 | 32.5 | <0.001 |
| Physical activity: none/little | % | 15.1 | 16.2 | 19.9 | 15.8 | 25.7 | <0.001 |
| BMI, kg/m2 ⩾32 | % | 2.5 | 3.8 | 3.8 | 4.9 | 7.6 | <0.001 |
| SBP, mm Hg | 128 | 126 | 125 | 128 | 129 | 0.06 | |
| Cholesterol, mmol/l | 5.96 | 5.96 | 5.96 | 6.13 | 6.05 | <0.001 | |
| Education (<8 y) | % | 7.3 | 23.5 | 31.8 | 49.8 | 65.8 | <0.001 |
| Living alone | % | 17.4 | 20.4 | 24.2 | 13.8 | 23.1 | 0.013 |
| Decision authority | (0–100) | 86.6 | 84.6 | 74.5 | 72.3 | 63.9 | <0.001 |
| Demands | (0–100) | 37.0 | 34.8 | 30.2 | 27.5 | 24.3 | <0.001 |
| Skill discretion | (0–100) | 34.4 | 30.8 | 27.3 | 26.0 | 16.9 | <0.001 |
| Social support at work | (0–100) | 75.8 | 75.1 | 77.7 | 77.3 | 71.8 | <0.001 |