Table 2

Selected investigations of passive smoking and lung function level among adults

Reference no.Study populationStudy periodExposure assessmentOther exposuresOutcomeResults
41 117 never smokers, 15–40 years, Montreal1980–89Lifetime and past three daysHome and workRate of FEV1 and FEF25–75 change over 8 yearsNo relation between ETS exposure and change in lung function
42 1033, 40–69 years, Beijing1986CurrentHome and workOccupation, indoor coal stovesFEV1 and FVC level Exposure FEV 1 (ml) FVC (ml)
Work or home−1212-150 −1822-150
Work and home−1452-150 −1892-150
43 415 never smokers, 51–951988–91LifetimeHomeFEV1, FVC, FEF25–75 level Non-smokers exposed Non-smokers not exposed
years, Southern CaliforniaFEV1(l)
FVC (l)
  • 2-150 Estimated decrement in lung function among non-smokers exposed compared to non-smokers not exposed, p<0.05.