Table 1.
Baseline information
| Variable | Control group (n=28) | Intervention group (n=23) | |
|---|---|---|---|
| Type of manufacturing | |||
| Assembly section | 9 | 5 | |
| Welding section | 11 | 9 | |
| Component section | 8 | 9 | |
| Characteristics of workers | |||
| Workers, no. | 315 | 301 | |
| Occupational title, % | |||
| Group manager | 9.2 | 9.3 | |
| On-site manager (Team leader) | 16.4 | 16.6 | |
| Worker | 74.4 | 74.1 | |
| Employment, % | |||
| Permanent | 98.4 | 99 | |
| Temporary | 1.6 | 1 | |
| Men, % | 98.4 | 99 | |
| Age, range (mean), year | 20-64 (36.5) | 19-65 (35.4) | |
| Employed work, range (mean), year | 1-48 (13.7) | 1-50 (12.9) | |
| Work shift, % | |||
| Only daytime | 41.3 | 35.8 | |
| Day and night time | 58.7 | 64.2 | |
| Educational level, % | |||
| Undergraduate from a technical college | 86.9 | 90 | |
| Graduate of a technical college or higher | 13.1 | 10 | |