Suspected causal agents of occupational asthma
| Whole population | Men | Women | |
|---|---|---|---|
| Agent | n (%) | n (%) | n (%) |
| *The number of suspected causal agents is higher than the number of cases of occupational asthma as multiple aetiologies were suspected in some cases. | |||
| Flour | 478 (20.3) | 428 (28.3) | 50 (5.9) |
| Isocyanates | 333 (14.1) | 278 (18.4) | 55 (6.5) |
| Latex | 169 (7.2) | 18 (1.2) | 151 (17.8) |
| Aldehydes | 140 (5.9) | 44 (2.9) | 96 (11.3) |
| Persulphate salts | 137 (5.8) | 11 (0.7) | 126 (14.8) |
| Wood dusts | 87 (3.7) | 78 (5.0) | 9 (1.1) |
| Mites | 72 (3.1) | 41 (2.7) | 31 (3.7) |
| Alpha amylase | 67 (2.8) | 65 (4.3) | 2 (0.2) |
| Resins and glues (isocyanates excluded) | 55 (2.3) | 37 (2.5) | 18 (2.1) |
| Cereal dusts | 38 (1.6) | 28 (1.9) | 10 (1.2) |
| Aliphatic amines | 35 (1.5) | 19 (1.3) | 16 (1.9) |
| Chlorine and derived products | 35 (1.5) | 17 (1.1) | 18 (2.1) |
| Quaternary ammonium | 29 (1.2) | 3 (0.2) | 26 (3.1) |
| Laboratory animals | 27 (1.1) | 15 (1.0) | 12 (1.4) |
| Mould | 24 (1.0) | 14 (0.9) | 10 (1.2) |
| Farm animals | 20 (0.8) | 7 (0.5) | 13 (1.5) |
| Welding fumes | 19 (0.8) | 18 (1.2) | 1 (0.1) |
| Colophony | 18 (0.9) | 7 (0.5) | 11 (1.3) |
| Pollens | 18 (0.8) | 10 (0.7) | 8 (0.9) |
| Acid anhydrides | 17 (0.7) | 11 (0.7) | 6 (0.7) |
| Other | 343 (14.5) | 244 (16.1) | 99 (11.7) |
| Undetermined | 198 (8.4) | 119 (7.9) | 79 (9.3) |
| Total | 2359* (100.0) | 1512* (100.0) | 847* (100.0) |