Table 1. Clinical and demographic characteristics of the study sample (N = 12).^a .

Variable	Result
Female gender	8 (66.7)
Age, years	41 ± 15
Dyspnea at diagnosis	12 (100)
Smokers (current or former)	2 (16.6)
Exposure
Birds	3 (25.0)
Mold	1 (8.3)
Diagnosis
BAL	9 (75.0)
Open lung biopsy	3 (25.0)

^aValues expressed as n (%) or mean ± SD.