The authors examined the relation between smoking and the risk of fatal prostate cancer in a large prospective mortality study of 450,279 men who were cancer free at enrollment in 1982.
During 9 years of follow-up, 1,748 deaths occurred from prostate cancer.
Cox proportional hazards modeling was used to adjust for other risk factors.
Current cigarette smoking was associated with fatal prostate cancer (rate ratio=1.34,95% confidence interval (Cl) 1.16-1.56).
The rate ratio was greater at younger ages, decreasing from 1.83 (95% Cl 1.04-3.24) among men below the age of 60 years to 1.11 (95% Cl 0.79-1.58) among men aged 80 years and above (p for trend=0.16).
No trend in risk was observed with the number of cigarettes per day or with the duration of smoking among current smokers at baseline, and no increased risk was found among former smokers.
Race did not significantly modify the association between cigarette smoking and fatal prostate cancer.
These data, together with those of three other large prospective studies that find higher death rates from prostate cancer in current cigarette smokers, and inconsistent findings in incidence studies suggest that smoking may adversely affect survival in prostate cancer patients.
Mots-clés Pascal : Tumeur maligne, Prostate, Indice gravité, Tabagisme, Mort, Etude comparative, Ethnie, Epidémiologie, Facteur risque, Homme, Mâle, Etats Unis, Amérique du Nord, Amérique, Etude cohorte, Prospective, Appareil génital mâle pathologie, Appareil urinaire pathologie, Prostate pathologie, Revue bibliographique
Mots-clés Pascal anglais : Malignant tumor, Prostate, Severity score, Tobacco smoking, Death, Comparative study, Ethnic group, Epidemiology, Risk factor, Human, Male, United States, North America, America, Cohort study, Prospective, Male genital diseases, Urinary system disease, Prostate disease, Bibliographic review
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 97-0204691
Code Inist : 002B20B02. Création : 21/05/1997.