Table 1.
Weighteda characteristics of the study population
| Men (n = 2270) | Women (n = 2142) | |
|---|---|---|
| Age, n (%) | ||
| 15–24 | 259 (11.4) | 314 (14.7) |
| 25–44 | 1100 (48.5) | 965 (45.1) |
| 45–54 | 623 (27.5) | 633 (29.6) |
| ≥55 | 288 (12.7) | 230 (10.7) |
| Education, n (%) | ||
| Less than high school degree | 345 (15.3) | 205 (9.6) |
| High school degree | 765 (33.9) | 698 (32.8) |
| College degree | 562 (24.9) | 564 (26.5) |
| University degree | 583 (25.9) | 663 (31.1) |
| Occupation, n (%) | ||
| Unskilled workers and maneuvers | 715 (31.5) | 527 (24.6) |
| Qualified workers | 386 (17.0) | 162 (7.6) |
| Office workers | 145 (6.4) | 491 (23.0) |
| Overseers and first level managers | 320 (14.1) | 409 (19.1) |
| Semi-professionals and technicians | 171 (7.6) | 88 (4.1) |
| Professionals | 352 (15.5) | 356 (16.7) |
| Senior and middle managers | 179 (7.9) | 105 (4.9) |
| Household income (quartiles), n (%)b | ||
| 0–39 999$ | 457 (21.2) | 484 (25.0) |
| 40 000–59 999$ | 479 (22.3) | 422 (21.7) |
| 60 000–99 999$ | 746 (34.7) | 620 (31.9) |
| ≥100 000$ | 470 (21.9) | 414 (21.4) |
| Psychological distress, mean (SD) | 3.41 (3.18) | 4.39 (3.54) |
| Psychological demand (tertiles), n (%) | ||
| 0–7.2 | 761 (33.7) | 704 (33.1) |
| 7.3–10 | 938 (41.5) | 778 (36.5) |
| >10 | 562 (24.8) | 649 (30.4) |
| Job control (tertiles), n (%) | ||
| 0–20.9 | 619 (27.4) | 740 (34.7) |
| 21–24.9 | 753 (33.2) | 662 (31.1) |
| ≥25 | 892 (39.4) | 728 (34.2) |
| Reward at work (tertiles), n (%) | ||
| 0–13.9 | 582 (26.2) | 640 (30.6) |
| 14–15.9 | 619 (27.8) | 523 (25.0) |
| ≥16 | 1025 (46.0) | 932 (44.5) |
| Social support at work (tertiles), n (%) | ||
| 0–47 | 663 (29.5) | 543 (25.6) |
| 48–55 | 814 (36.2) | 710 (33.6) |
| ≥56 | 688 (30.6) | 787 (37.2) |
| Working alone | 85 (3.8) | 78 (3.7) |
aThe sum of the frequencies can be different from the expected number because weighted data were rounded
bMissing values were ≤ 2% for all variables except for household income (n = 321 (119 men and 202 women) where 7.3% were missing)