Sources of information used for assessment of exposure of patients with irritant-induced occupational asthma
| Source of exposure information | Acute N=30 n (%) | Subacute N=39 n (%) | All N=69 n (%) |
| Safety data sheets* | 18 (60) | 24 (62) | 42 (61) |
| Workplace hygiene measurements | 2 (7) | 24 (62) | 26 (38) |
| Patient interview by exposure specialist† | 7 (23) | 14 (36) | 21 (30) |
| Employer interview by exposure specialist† | 5 (17) | 15 (39) | 20 (29) |
| Accident reports or reports of authorities | 9 (30) | 2 (5) | 11 (16) |
| Laboratory analyses of workplace materials‡ | 2 (7) | 4 (10) | 6 (9) |
| Personal or stationary online gas detectors at workplace | 3 (10) | 3 (8) | 6 (9) |
| Biomonitoring | 0 (0) | 4 (10) | 4 (6) |
*In cases with exposure to identified chemical products.
†Either specialised occupational hygienist or occupational toxicologist.
‡Including emission measurements or analyses of dust samples.