Table 1.
Study population characteristics according to occupational organic dust exposure status, in numbers (percentages between brackets) (unless stated otherwise)
| Characteristics | No exposure | Exposure |
|---|---|---|
| Number of employers |
31 |
31 |
| Male |
31 (100) |
31 (100) |
| Mean age, years (s.e.)a |
43.8 (1.7) |
37.1 (1.4) |
| Seniority, years (s.e.)a |
10.9 (1.5) |
7.0 (0.8) |
| Never |
17 (54.8) |
13 (41.9) |
| Ex |
10 (32.3) |
7 (22.6) |
| Current |
4 (12.9) |
11 (35.5) |
| Asthma (dd)b |
2 (6.5) |
2 (6.5) |
| Allergy (dd)b |
4 (12.9) |
1 (3.2) |
| P3 class mask |
- |
12 (38.7) |
| Gloves | - | 31 (100) |
as.e.: standard error.
bdd: doctor-diagnosed