Table 1.
Characteristics of the study population (n=3343)
| Individual and work-related factors | Total study sample |
|---|---|
| Socio-demographic factors | |
| Gender: n (%) a | |
| Male | 1769 (52.9) |
| Female | 1574 (47.1) |
| Mean age/yr (SD) | 39.42 (10.91) |
| Self-rated health: n (%) a | |
| Bad | 606 (18.1) |
| Good | 2735 (81.9) |
| Education level: n (%) a | |
| Primary level | 80 (2.4) |
| Low secondary | 446 (13.4) |
| High secondary | 1361 (40.9) |
| Tertiary level | 1444 (43.3) |
| Work-related factors | |
| Work-related accident absence: n (%) a | |
| No | 1973 (88.3) |
| Yes | 262 (11.7) |
| Yes: Mean/day (Min/Max) | 24.69 (1/365) |
| Contract type: n (%) a | |
| Precarious contract | 428 (13.1) |
| Permanent contract | 2847 (86.9) |
| Long hours: n (%) a | |
| Long hours | 202 (6.1) |
| Normal hours | 3087 (93.9) |
| Multiple jobs: n (%) a | |
| No | 3026 (90.9) |
| Yes | 303 (9.1) |
| Shift work: n (%) a | |
| No | 2815 (84.4) |
| Yes | 520 (15.6) |
| Mean work experience/yr (SD) | 9.69 (9.85) |
| Company size: n (%) a | |
| Small | 813 (25.9) |
| Medium | 1397 (44.5) |
| Large | 556 (17.7) |
| Very large | 370 (11.8) |
| Economic activity: n (%) a | |
| Construction | 190 (5.9) |
| Mining, quarrying, manufacturing, electricity, gas and water | 432 (13.3) |
| Agriculture, hunting, forestry and fishing | 38 (1.2) |
| Services | 2587 (79.6) |
| Overall fatigue: n (%) a | |
| No | 2150 (64.6) |
| Yes | 1179 (35.4) |
| Sleep difficulties: n (%) a | |
| No | 2616 (78.6) |
| Yes | 713 (21.4) |
| Risk information: n (%) a | |
| Well informed | 2796 (85.3) |
| Not well informed | 482 (14.7) |
| Physical exposure (PH): n (%) a | |
| No | 1357 (40.7) |
| Yes | 1981 (59.3) |
| Chemical exposure (CH): n (%) a | |
| No | 1872 (56.1) |
| Yes | 1465 (43.9) |
| Biological exposure (BL): n (%) a | |
| No | 2587 (77.9) |
| Yes | 735 (22.1) |
| Biomechanical exposure (BM): n (%) a | |
| No | 1447 (43.3) |
| Yes | 1895 (56.7) |
| a Calculated according to the percentage of the valid count. | |