Employment history and occupational exposures among cases and controls
| Cases (n=110) | Controls (n=102) | p Value | |
| Currently employed (n (%)) | 13 (12) | 12 (12) | 0.97 |
| Currently unemployed (n (%)) | 95 (86) | 80 (78) | 0.98 |
| Currently unemployed due to ill-health (n (%)) | 59 (54) | 18 (17) | <0.001 |
| Self-reported exposure measures | |||
| Dust exposure (n (%)) | 79 (72) | 28 (28) | <0.001 |
| CGF exposure (n (%)) | 82 (74) | 26 (25) | <0.001 |
| Either dust or CGF exposure (n (%)) | 84 (77) | 24 (23) | <0.001 |
| Dust and CGF (n (%)) | 61 (55) | 18 (17) | <0.001 |
| Total dust years (mean (SD)) | 15.7 (14.7) | 4.7 (9.2) | <0.001 |
| Total CGF years (mean (SD)) | 14.0 (14.1) | 3.5 (8.9) | <0.001 |
| JEM cumulative exposure years | |||
| Biological dusts (mean (SD)) | 19.8 (29.2) | 11.5 (20.0) | 0.01 |
| Mineral dusts (mean (SD)) | 22.4 (36.1) | 16.1 (32.1) | 0.14 |
| CGF (mean (SD)) | 42.7 (44.9) | 35.4 (44.9) | 0.06 |
CGF, chemicals, gases or fumes; JEM, Job Exposure Matrix.