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Table 1 Population characteristics, N = 1,906

From: Interaction of atopy and smoking on respiratory effects of occupational dust exposure: a general population-based study

  N (%)
Age, mean (range) 45 (20–71)
Female 921 (48)
Current smoker Ex smoker 775 (41) 508 (27)
Ex smoker 508 (27)
Occupational exposure1:  
organic dust 401 (21)
mineral dust 525 (27)
gases/fumes 586 (31)
any exposure 840 (44)
Atopy 635 (33)
FEV1 %predicted, mean (range) 111 (71–166)
Current wheeze 393 (21)
Current asthma 130 (7)
Chronic bronchitis 72 (4)
  1. 1 according to ad hoc job-exposure-matrix (see methods)