Tobacco Documents Online

A.N1 J EPIDEMIOL 134(7), 1991 SER Abstracts Cancer of the Lung and Larynx Chair: Jonathan Samet EnNironmental Tobacco Smoke and Lung Cancer in Never Smoking Women. H. O. Stockwell.' E. C. Can- delora, A. V.': Armstrong, an& P. A. Pinkham (College of Public H'ealth, U'niversity of South Florida. Tampa. FL 33612): Risk factors for lung cancer among women who had never smoked cigarettes were examined in an ongoing, population-based, case-control study conducted in Flor- ida. A total~ of 124 women with primary carcinoma of the lung and 241 control women who had never smoked ~ were included. Results suggest that childhood and adult ! exposures to environmental tobacco smoke may in- crease crease the risk of lung cancer among women who never I smoked cigarettes. Having a husband who smoked cig- arettes arettes resulted in a statistically significant increase ill risk of lung cancer among women who had' never smoked (odds ratios (OR) = 1.8, 95% confidence inter- val (CI) 1.1-2:9)i A 40% increase in risk was observed among women with less than 25 years of exposure to a _ spouse who smoked, compared with women who re- d ported that their spouse had never smoked, with the F risk increasing to 60% among women exposed 25 years `~ or longer. When exposure to tobacco smoke in child- hood hood was considered, the data were less consistent. y Having a parent who had smoked during the respon- dent's childhood did not increase the risk of lung cancer. : However, among those respondents with high levels of exposure to parental smoking, an excess risk, although • not statistically significant, was observed. Never smok- ing women with exposures of 25 years or more experi- enced a 70% increase in risk (OR = 1.7, 95% CI 0.8- 3.6) of lung cancer compared with women who reported that neither parent had smoked cigarettes.