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Table 1 Demographic and epidemiological data

From: Factors influencing the clinical presentation of hypersensitivity pneumonitis in pigeon breeders in Minia governorate: an Egyptian experience

Variables Number (%)
Age 15–65, 38.12 ± 13.07
Gender  
 Male 11 (16.4%)
 Female 56 (83.6%)
Smoking status  
 None smoker 58 (86.6%)
 Ex-smoker 9 (13.4%)
 Current smoker 0 (0%)
Biomass exposure  
 No 29 (43.3%)
 Previous exposure 30 (44.8%)
 Current exposure 8 (11.9%)
Passive smoking exposure  
 No 45 (67.2%)
 Yes 22 (32.8%)
Family history of HP  
 Yes 4 (6%)
 No 63 (94%)
Duration of exposure to birds (month) 3–240, 53.92 ± 66.1
Place of exposure  
 Closed place 28 (41.8%)
 Open place 39 (58.2%)
Sweeping for pigeons and birds  
 Yes 48 (71.6%)
 No 19 (28.4%)
Other species of birds in association  
 Yes 56 (83.6%)
 No 11 (19.4%)
Interval from initiation of exposure until symptoms (months) 1–60, 16.41 ± 10.8
  1. Data presented as no.%, range and mean ± SD
  2. HP hypersensitivity pneumonitis