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  1. Incidence of ulcerative colitis and indeterminate colitis in four counties of southeastern Norway, 1990-93 : A prospective population-based study.

    Article - En anglais

    Background 

    The incidence of ulcerative colitis (UC) has been difficult to interpret because prospective studies have only been performed during the past 3 decades.

    Geographic variations may therefore be due to differences in study design.

    Method 

    From 1 January 1990 to 31 December 1993 all new cases of UC in four counties in southeastern Norway were prospectively registered.

    Cases diagnosed as indeterminate colitis (IND) when endoscopy and histopathology were inconclusive or diverged with regard to diagnosis of UC or Crohn's disease (CD) were also included in the study.

    Results 

    A total of 525 cases of UC and 93 cases of IND yielded an mean annual incidence of 13.6/105 and 2.4/105, respectively.

    There were differences in incidence between counties, and a peak of 21.5/105 in the annual incidence was found for the age group 25 to 34 years in UC.

    The distribution was about equal for each of the groups proctitis and left-sided and extensive colitis.

    The time interval from onset of symptoms to diagnosis was 4 months.

    Conclusion 

    In this study one of the highest incidences of UC in the world has been found.

    The classification'indeterminate colitis'seems reasonable to use in some of the cases to prevent misclassification at the initial stage of diagnosis.

    Mots-clés Pascal : Rectocolite ulcérohémorragique, Colite, Incidence, Symptomatologie, Diagnostic, Epidémiologie, Homme, Norvège, Europe, Appareil digestif pathologie, Intestin pathologie, Maladie inflammatoire

    Mots-clés Pascal anglais : Ulcerative colitis, Colitis, Incidence, Symptomatology, Diagnosis, Epidemiology, Human, Norway, Europe, Digestive diseases, Intestinal disease, Inflammatory disease

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

    Cote : 96-0289252

    Code Inist : 002B30A01A2. Création : 199608.