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. Author manuscript; available in PMC: 2022 May 1.
Published in final edited form as: Thorax. 2022 Jan 7;77(5):508–510. doi: 10.1136/thoraxjnl-2021-217693

Table 1.

Clinical characteristics of HP subjects and controls

HP (%) Control (%) P value
Subjects 226 1355
Sex (male/female) 92 (41)/134 (59) 570 (42)/785 (58) 0.7
Age 61.2±10.4 59.2±10.0 0.0005
Smoking history (ever/never) 117 (54)/100 (46) 1170 (86)/175 (14) <0.0001
Pulmonary function
 %FVC (N=167) 65.5±21.5 NA
 %DLco (N=150) 52.2±20.5 NA
GAP index (N=148)
 Stage1 89 (60) NA
 Stage2 49 (33) NA
 Stage3 10 (7) NA
 Fibrosis (yes/no/unknown) 152 (67) /47 (21)/27 (12) NA
 CT-proven fibrosis (yes/no/unknown) 120 (53)/8 (4)/98 (43) NA
 Pathology proven fibrosis (yes/no/unknown) 77 (34)/47 (21)/102 (45) NA
 Antigen identification (yes/no/unknown) 124 (55)/51 (23)/51 (23) NA

%DLco, diffusing capacity of the lung for carbon monoxide, % of predicted value; %FVC, forced vital capacity, % of predicted value; HP, hypersensitivity pneumonitis; NA, not available.