Distribution of age, sex and cohabiting status in patients with hypersensitivity pneumonitis (HP) and matched controls
| HP | Controls | |
| Male | 427 (56.7%) | 1708 (56.7%) |
| Female | 326 (43.3%) | 1304 (43.3%) |
| Age distribution years | ||
| <20 | 53 (7%) | 212 (7%) |
| 20–29 | 76 (10.1%) | 304 (10.1%) |
| 30–39 | 114 (15.1%) | 456 (15.1%) |
| 40–49 | 145 (19.3%) | 580 (19.3%) |
| 50–59 | 155 (20.6%) | 620 (20.6%) |
| 60–69 | 124 (16.5%) | 496 (16.5%) |
| 70–79 | 67 (8.9%) | 268 (8.9%) |
| ≥80 | 19 (2.5%) | 76 (2.5%) |
| All | 753 (100%) | 3012 (100%) |
| Married or cohabiting (spouses) | 65.9% | 66.1% |