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  1. Smoking and colorectal cancer : a 20-year follow-up study of Swedish construction workers.

    Article - En anglais

    Background 

    Although cigarette smoking has consistently been shown to be positively related to the risk of adenomatous polyp development (benign neoplastic growth of epithelial tissue in the colon), most studies of cigarette smoking and the risk of colorectal cancer have been negative.

    However, in two large prospective studies in women and men, a statistically significant association between cigarette smoking and an increased risk of colorectal cancer was found, but only after more than 35 years of smoking.

    Purpose 

    To shed further light on the alleged relationship between long-term smoking and colorectal cancer risk, we performed a retrospective cohort study among Swedish construction workers, with many long-term smokers, complete long-term follow-up, and a large number of observed cases.

    Methods 

    We analyzed the association of smoking with colon cancer and with rectal cancer, using data on a cohort of approximately 135 000 male construction workers.

    High-quality exposure information was collected with the use of a comprehensive questionnaire filled out at the time of enrollment in the cohort, from 1971 through 1975.

    Complete follow-up was achieved through 1991 and the subjects were observed for an average of 17.6 years, thereby contributing approximately 2 375 000 person-years of follow-up. (...)

    Mots-clés Pascal : Tumeur maligne, Côlon, Rectum, Facteur risque, Epidémiologie, Tabagisme, Etude cohorte, Etude longitudinale, Homme, Mâle, Suède, Europe, Catégorie socioprofessionnelle, Appareil digestif pathologie, Intestin pathologie, Côlon pathologie, Rectum pathologie

    Mots-clés Pascal anglais : Malignant tumor, Colon, Rectum, Risk factor, Epidemiology, Tobacco smoking, Cohort study, Follow up study, Human, Male, Sweden, Europe, Socioeconomic category, Digestive diseases, Intestinal disease, Colonic disease, Rectal disease

    Logo du centre Notice produite par :
    Inist-CNRS - Institut de l'Information Scientifique et Technique

    Cote : 97-0028676

    Code Inist : 002B13B01. Création : 21/05/1997.