Table 1.
Demographic characteristics of patients with hypersensitivity pneumonitis
| Hypersensitivity pneumonitis (n = 155) | |
|---|---|
| Mean age (SD) | 61.9 (10.8) |
| Male, no. (%) | 78 (51) |
| Ethnicity, no. (%) | |
| Non-Hispanic White | 126 (80) |
| Black | 3 (2) |
| Hispanic or Latino | 10 (6) |
| Asian | 5 (3) |
| Other | 1 (1) |
| Unknown | 10 (6) |
| Ever smoker, N (%) | 75 (48) |
| Pack years, median (IQR) | 19 (7–37) |
| Antigen identified, no. (%) | 138 (89) |
| Bird | 55 (35) |
| Feather | 44 (28) |
| Any avian | 99 (64) |
| Mold | 62 (40) |
| Any avian and mold | 31 (20) |
| Other | 14 (9) |
| Unknown | 17 (11) |
| Baseline lung function, mean (SD), N | |
| FVC % predicted | 69 (19), 104 |
| FEV1% predicted | 71 (19), 104 |
| FEV1/FVC ratio | 80 (9), 104 |
| DLCO % predicted | 54 (19), 97 |
| HRCT available for scoring | 154 (99) |
| Lung biopsy performeda | 133 (86) |
| Surgical biopsy | 92 (59) |
| Transbronchial biopsy | 72 (47) |
a
Some patients had both transbronchial and surgical lung biopsy