Table 2.

Characteristics of acute and chronic BRHP Patients

	Acute BRHP	Chronic BRHP
	(n = 17)	(n = 42)
Age, yr	57 (48–64)	64 (56–71)
Sex, male/female	6/11	26/16
Breed history of birds N/F/C, %	0/5.9/94.1	35.7/33.3/31.0†
Exposure periods, mo	90 (30–153)	120 (63–216)
Kind of birds C/G/Pa/Ps, %	44.4/0/5.6/50	42.9/10.7/10.7/35.7
BAL cell counts Lymphocytes, %	81.8 (63.8–90.0)	42.0 (6.9–61.8)*
Serum KL-6, U/ml	2606 (1000–5766)	1275 (724–2595)

Data are presented as median values and interquartile ranges unless otherwise indicated

BAL bronchoalveolar lavage, N/F/C non-breeders/former-breeders/current-breeders, C/G/Pa/Ps Columbiformes/Galliformes/Passeriformes/Psitacciformes

*p < 0.05 compared with Acute BRHP. †p < 0.01 compared with Acute BRHP