Clinical presentation of Crohn's disease. Association between familial disease, smoking, disease phenotype, extraintestinal manifestations and need for surgery

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Background/Aims: Recent molecular data suggest that genetic factors may underlie the disease heterogeneity observed in Crohn's disease (CD). It was also suggested that familial inflammatory bowel disease (IBD) is a homogenous subgroup, phenotypically different from sporadic disease. Our aim was to determine the clinical presentation in a large CD population. Methodology: 564 CD patients (m/f: 278/286, age: 37.4 (SD 12.7) yrs, duration: 8.4 (7.1) yrs) were included. Disease phenotype was determined according to Vienna classification. Familial disease, extraintestinal manifestations (EIM), need for surgery and smoking habits were also analyzed. Results: Familial IBD was present in 73 (12.9%) patients. Age at onset and presence of EIMs was associated with familial disease. Penetrating (44.6% vs. <10yrs: 29.1%, P<0.0001) and ileocolonic disease (54.4% vs. 42.8%, P=0.03) were more common in patients with a disease duration of ≥10yrs. In a logistic regression model female gender, colonic/ileocolonic location, smoking and familial IBD were independent risk factors for EIMs, while ileal and non-inflammatory disease increased the risk for resections. Smoking was also associated with frequent relapses. Conclusions: Familial IBD was associated with the presence of EIMs, while ileal involvement and non-inflammatory behavior independently increased the risk for surgery. Since penetrating and extensive disease was more frequent in patients with longer disease duration our data support a possible change in location and behavior during the course of disease.

Original languageEnglish
Pages (from-to)817-822
Number of pages6
Issue number63
Publication statusPublished - máj. 1 2005


ASJC Scopus subject areas

  • Hepatology
  • Gastroenterology

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