Occupational fitness at each assessment of the exposed group
| 3 months (n = 182) | 1 year (n = 175) | 2 years (n = 162) | 3 years (n = 151) | |
|---|---|---|---|---|
| Fit until annual visit | 95% | 95% | 97.5% | 95% |
| Fit but review before 1 year | 4.5% | 4% | 2.5% | 1% |
| Temporarily unfit | 0.5% | 0 | 0 | 1% |
| Permanently unfit and reclassified | 0 | 0 | 0 | 0.6% |
| No data | 0.5% | 0.6% | 0 | 0 |
| Retired | 0 | 0 | 0 | 1% |