Relation between symptoms and RUA intensity of exposure categories for rat urine sensitised and non-sensitised laboratory animal workers
| SPT +ve | SPT –ve | |||||||
|---|---|---|---|---|---|---|---|---|
| Symptoms by RUA categories | Cases (n/N) | Cumulative incidence (%) | RR | 95% CI | Cases (n/N) | Cumulative incidence (%) | RR | 95% CI |
| The estimates are adjusted for smoking and atopic status (see text for rate ratios). | ||||||||
| Any symptoms | ||||||||
| 1 – Low | 16/75 | 21.3 | 1 | 14/75 | 18.7 | 1 | ||
| 2 | 3/13 | 23.1 | 1.7 | 0.5 to 6.2 | 18/68 | 26.5 | 1.8 | 0.9 to 3.7 |
| 3 | 6/15 | 40.0 | 9.1 | 2.6 to 31.9 | 21/88 | 23.9 | 1.8 | 0.9 to 3.7 |
| 4 – High | 2/7 | 28.6 | 3.0 | 0.6 to 14.4 | 30/71 | 42.3 | 2.1 | 1.1 to 3.9 |
| Chest symptoms | ||||||||
| 1 – Low | 2/71 | 2.8 | 1 | 2/71 | 2.8 | 1 | ||
| 2 | 2/13 | 15.4 | 2.9 | 0.5 to 17.8 | 5/70 | 7.1 | 2.8 | 0.5 to 14.4 |
| 3 | 8/16 | 50.0 | 11.1 | 2.7 to 45.9 | 5/87 | 5.7 | 2.5 | 0.5 to 12.9 |
| 4 – High | 5/10 | 50.0 | 9.9 | 2.2 to 44.9 | 5/74 | 6.8 | 2.3 | 0.5 to 12.1 |
| Eyes/nose symptoms | ||||||||
| 1 – Low | 7/67 | 9.0 | 1 | 13/74 | 17.6 | 1 | ||
| 2 | 4/15 | 26.7 | 4.6 | 1.3 to 16.2 | 13/69 | 18.8 | 1.3 | 0.6 to 2.8 |
| 3 | 10/17 | 58.8 | 12.9 | 4.4 to 37.7 | 11/82 | 13.4 | 1.1 | 0.5 to 2.5 |
| 4 – High | 3/9 | 33.3 | 8.8 | 3.1 to 24.9 | 12/76 | 15.8 | 0.8 | 0.3 to 1.8 |
| Skin symptoms | ||||||||
| 1 – Low | 1/69 | 1.4 | 1 | 4/73 | 5.5 | 1 | ||
| 2 | 2/12 | 16.7 | 9.2 | 1.3 to 67.1 | 8/69 | 11.6 | 2.2 | 0.5 to 9.4 |
| 3 | 7/16 | 43.8 | 19.9 | 3.8 to 105.0 | 7/84 | 8.3 | 2.3 | 0.6 to 9.4 |
| 4 – High | 7/11 | 63.6 | 43.6 | 7.5 to 254.4 | 12/76 | 15.8 | 3.8 | 1.0 to 13.5 |