Table 2.
Occupations with number of subjects (and their average age), work shifts, and task modules in the study
| Occupation | N | Age (years) | Work shifts (n) | Task modules (n) |
|---|---|---|---|---|
| Floor layers | 15 | 43.9 (10.8) | 16 | 4 |
| Installers/plumbers | 34 | 36.6 (13.7) | 40 | 12 |
| Mould makers | 4 | 29.5 (10.3) | 4 | 1 |
| Painters and decorators | 18 | 32.7 (13.2) | 19 | 7 |
| Parquet layers | 14 | 32.1 (9.5) | 28 | 7 |
| Pavers | 7 | 35.6 (4.8) | 7 | 3 |
| Pipe layers | 9 | 37.3 (12.8) | 9 | 4 |
| Ramp agents | 8 | 28.5 (6.6) | 8 | 2 |
| Reinforcing ironworkers | 6 | 33.2 (5.8) | 6 | 2 |
| Roofers | 34 | 34.8 (10.9) | 36 | 14 |
| Screed layers | 17 | 35.7 (10.2) | 20 | 7 |
| Shipyard workers | 6 | 32.5 (7.7) | 6 | 3 |
| Stone layers | 15 | 39.0 (8.7) | 15 | 5 |
| Tilers | 19 | 35.2 (12.2) | 20 | 8 |
| Truck tarp makers | 4 | 37.5 (11.3) | 5 | 1 |
| Welders | 3 | 32.0 (19.1) | 3 | 1 |
| Total | 213 | 35.5 (11.3) | 242 | 81 |
Values for age are mean values (SD)