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. Author manuscript; available in PMC: 2019 Jun 17.
Published in final edited form as: Lung. 2018 Jun 29;196(5):617–622. doi: 10.1007/s00408-018-0139-1

Table 2.

Comparison of bronchaolveolar lavage to bronchoalveolar lavage or transbronchial biopsy in the diagnosis of hypersensitivity pneumonitis (overall N = 77, inflammatory N = 17, fibrotic N = 60)

BAL alonea BAL or TBBxb p value
BAL 20% cutoff
 Overall 26 (34) 45 (58) 0.004
 Inflammatory 10 (59) 13 (76) 0.46
 Fibrotic 16 (27) 32 (53) 0.005
BAL 30% cutoff
 Overall 21 (27) 41 (53) 0.002
 Inflammatory 9 (53) 12 (71) 0.48
 Fibrotic 12 (20) 29 (48) 0.002
BAL 40% cutoff
 Overall 18 (23) 40 (52) 0.0005
 Inflammatory 8 (47) 11 (65) 0.49
 Fibrotic 10 (17) 29 (48) 0.0005

Bold values indicate statistical significance (p < 0.05)

a

Bronchoalveolar lavage suggestive of hypersensitivity if lymphocyte count above cutpoints (20, 30, or 40%, respectively)

b

Bronchoalveolar lavage lymphocyte count (> 20, 30, or 40%, respectively) or transbronchial biopsy feature suggestive of hypersensitivity pneumonitis (granulomas, giant cells, inflammatory bronchiolitis, cellular interstitial infiltrate)