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  1. Crohn's disease : Influence of age at diagnosis on site and clinical type of disease.

    Article - En anglais

    Background & Aims 

    Crohn's disease has a bimodal age distribution of disease onset diagnosis.

    The peaks (20 and 50 years) may represent different phenotypes or different genetic and/or environmental influences between younger-and older-onset individuals.

    The aim of this study was to examine the influences of age at diagnosis of Crohn's disease on disease site, type, and course.

    Methods 

    Records of 552 consecutive patients with Crohn's disease were reviewed retrospectively.

    Results 

    Younger age at diagnosis (younger than 20 years), compared with an older age (40 years or older), was associated with a greater prevalence of a family history of Crohn's disease (29.9% vs. 13.6%), greater small bowel involvement (88.7% vs. 57.5%), more stricturing disease (45.8% vs. 28.8%), and a higher frequency of surgery (70.6% vs. 55.3%). Older age at diagnosis was associated with a greater prevalence of colonic disease (84.8% vs. 71.2%) and the inflammatory subtype (54.5% vs. 34.4%). A conditional logistic regression analysis confirmed an independent effect of age at diagnosis on ileal disease and surgery for intractable disease.

    Conclusions 

    In Crohn's disease, early age at diagnosis is associated with more complicated disease and a greater likelihood of having affected relatives.

    Stratification of Crohn's disease by age at diagnosis provides support for the concept of genetic heterogeneity.

    Mots-clés Pascal : Entérite Crohn, Relation incertitude, Age apparition, Forme clinique, Localisation, Etude statistique, Homme, Appareil digestif pathologie, Intestin pathologie, Maladie inflammatoire

    Mots-clés Pascal anglais : Crohn disease, Uncertainty relation, Age of onset, Clinical form, Localization, Statistical study, Human, Digestive diseases, Intestinal disease, Inflammatory disease

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

    Cote : 96-0422272

    Code Inist : 002B13B03. Création : 10/04/1997.