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  1. A retrospective cohort study of cigarette smoking and risk of rheumatoid arthritis in female health professionals.

    Article - En anglais

    Objective

    To study the association of cigarette smoking with risk of rheumatoid arthritis (RA), among 377,481 female health professionals in the Women's Health Cohort Study.

    Methods

    Subjects completed mailed questionnaires regarding demographics, health habits, including cigarette smoking history, and medical history, including RA diagnosis made by a physician and date of diagnosis.

    Of 7,697 women who self-reported RA, 3,416 reported seropositive RA.

    Cox proportional hazards regression models were used to retrospectively assess the associations of smoking intensity and duration with the risk of developing RA or seropositive RA.

    Cigarette smoking status was treated as a time-varying exposure in these regression models.

    Results

    In multivariate analyses controlling for age, race, education, age at menarche, pregnancy history, menopausal status, and postmenopausal hormone use, duration of smoking was associated with a significantly increased risk of both RA and seropositive RA (both P<0.01 for trend), after adjusting for smoking intensity.

    Women who smoked >=25 cigarettes/day for more than 20 years experienced a 39% increased risk of RA and 49% increased risk of seropositive RA.

    However, smoking intensity (number of cigarettes/day) was unrelated to risk of RA or seropositive RA (both P=0.3 for trend), after adjusting for duration of smoking.

    Conclusion

    Duration, but not intensity, of cigarette smoking is associated with a modest increased risk of RA in women.

    Mots-clés Pascal : Polyarthrite rhumatoïde, Pathogénie, Facteur risque, Epidémiologie, Tabagisme, Effet biologique, Femelle, Adulte, Homme, Questionnaire, Chronique, Système ostéoarticulaire pathologie, Rhumatisme inflammatoire, Immunopathologie, Maladie autoimmune

    Mots-clés Pascal anglais : Rheumatoid arthritis, Pathogenesis, Risk factor, Epidemiology, Tobacco smoking, Biological effect, Female, Adult, Human, Questionnaire, Chronic, Diseases of the osteoarticular system, Inflammatory joint disease, Immunopathology, Autoimmune disease

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

    Cote : 99-0284893

    Code Inist : 002B15D. Création : 16/11/1999.