FDL BFL
Number of patients 31 15
Age, mean (SD), years 55.2 (14.5) 64.6 (11.6)
Male sex, n(%) 15 (48.4) 5 (33)
Tobacco use, n(%)
Non-smoker 10 (32.3) 11 (73.3)
Past-smoker 19 (61.3) 4 (26.7)
Active smoker 2 (6.5) 0
Exposure to feather, n(%)
Duvet 18 (58.1) 0
Pillow 5 (16.1 ) 0
Both 8 (25.8) 0
Exposure to birds, n(%)
Pigeon 0 10 (66.6)
Parakeet 0 2 (13.3)
Poultry 0 1 (6.7)
Several birds 0 3 (20)
HP classification
Chronic HP, n(%) 20 (64.5) 6 (40)
Acute HP , n(%) 11 (35.5) 9 (60)
Symptoms
Cought, n(%) 31 (100) 12 (80)
Dyspnea, n(%) 31 (100) 14 (93.3)
Emphysema, n(%) 0 1 (6.7)
Crackles, n(%) 18 (45.5) 10 (66.7)
Analytical data
BAL-Lymphocytes % , median (P25-P75) 12.5 (7- 36.3) 64 (53.8-67.5)
Pulmonary function tests
FEV1/FVC (%pred), mean (SD) 83.1 (5.3) 89.2 (16.4)
DLCO (% pred), mean (SD) 50 (13.3) 49.3 (13.4)
HRCT
Ground glass, n(%) 15 (48.4) 14 (93.3)
Reticular, n(%) 4 (12.9) 1 (6.6)
Honeycombing, n(%) 12 (38.7) 4 (26.7)