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Table 5 Relation between exposure to ETS and lung functions among men and women non-smokers (n = 623) in Aleppo-Syria

From: Extent of exposure to environmental tobacco smoke (ETS) and its dose-response relation to respiratory health among adults

  ETS score  
  middle high P Dose-response
Men    
FEV1 (ml) -46.8 (-215.4 to 121.7) 34.3 (-140.5 to 209.1) 0.3
FVC (ml) 63.9 (-167.5 to 295.3) 147.9 (-89.1 to 385.0) 0.5
FEV1/FVC (%) -1.2 (-3.7 to 1.6) -1.0 (-3.5 to 1.6) 0.5
Women    
FEV1 (ml) -87.8 (-164.8 to -10.7) -58.7 (-136.5 to 19.1) 0.3
FVC (ml) 3.1 (-103.8 to 110.1) -72.2 (-182.4 to 38.1) 0.2
FEV1/FVC (%) -2.0 (-3.8 to -0.3) -1.0 (-2.9 to 0.8) 0.1
  1. * Unstandardized linear regression coefficient and 95% confidence interval for the relation between ETS score tertiles (lower being referent) and lung function tests adjusted for age, BMI, SES score, hay fever, pack years (for ex-cigarette smokers), occupational exposure, parental allergy, and interaction terms of age with height and age with weight