title: Clinical features of Crohn's disease in Ireland.
abstract: Irish men and women are at equal risk of developing Crohn's disease. Age at diagnosis (12--mean 30.5-75 yr) and duration of symptoms before diagnosis (1--mean 35.7-444 months) are similar to those for Crohn's disease in other countries. The proportion of patients with macroscopic involvement of the large bowel at diagnosis (68%) is increasing and this is probably a true increase. At the same time the incidence of perianal disease is probably decreasing. Extraintestinal manifestations probably occur more frequently than previously recognized. Crohn's disease and psoriasis, which occurred in 7% of the patients, are probably associated disorders.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001004:Anus Diseases / Q000453:epidemiology; D002648:Child; D003424:Crohn Disease / Q000175:diagnosis / Q000453:epidemiology / Q000473:pathology; D005260:Female; D006801:Humans; D007494:Ireland; D008297:Male; D008875:Middle Aged; D010005:Osteoarthropathy, Secondary Hypertrophic / Q000453:epidemiology; D013997:Time Factors