Background Thirteen of 14 epidemiological studies have shown an increased risk of 20% for coronary heart disease (CHD) for never-smokers exposed to environmental tobacco smoke (ETS), but this association remains controversial.
If true, ETS might account for an estimated 35 000 to 40 000 heart disease deaths per year in the United States.
Methods and Results We have conducted the largest study to date, a prospective study of 353 180 female and 126 500 male never-smokers enrolled in 1982 in the American Cancer Society's Cancer Prevention Study II and followed through 1989.
Analyses focused on subcohorts of 309 599 married pairs and of 135 237 subjects concordant for self-reported exposure and exposure reported by each one's spouse.
More than 2800 CHD deaths (ICD 410-414) occurred among married pairs ; 10% of married men and 28% of married women were married to currently smoking spouses, while 10% and 32%, respectively, were married to former smokers.
After controlling for many cardiovascular risk factors, we found 22% higher CHD mortality (rate ratio, 1.22 ; 95% CI, 1.07 to 1.40) among never-smoking men married to currently smoking wives compared with those married to wives who had never smoked.
The corresponding rate ratio for women was 1.10 (0.96 to 1.27).
Never-smokers living with former smokers showed no increased risk. (...)
Mots-clés Pascal : Etude cohorte, Epidémiologie, Homme, Tabagisme passif, Tabagisme, Facteur milieu, Cardiopathie coronaire, Facteur risque, Mortalité, Appareil circulatoire pathologie
Mots-clés Pascal anglais : Cohort study, Epidemiology, Human, Passive smoking, Tobacco smoking, Environmental factor, Coronary heart disease, Risk factor, Mortality, Cardiovascular disease
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 96-0400258
Code Inist : 002B12A03. Création : 10/04/1997.