BACKGROUND: Our objectives were to assess the differences in perforating disease behavior, disease severity, and extraintestinal manifestations (EIM) in patients with Crohn's disease (CD) by race. MATERIALS AND METHODS: We identified outpatients with CD evaluated at the University of Maryland Gastroenterology Faculty Practice office or the Baltimore Veterans Affairs Maryland Health Care System, from 1997 to 2005. We assessed age at diagnosis, disease behavior, disease location, need for surgery and EIM. RESULTS: Race was not associated with perforating disease behavior (relative risk [RR] 0.79, 95% confidence interval [CI] 0.46-1.35), need for surgery (RR 0.89, 95% CI 0.56-1.12), and EIM of CD (RR 0.77, 95% CI 0.46-1.27). White patients were significantly more likely to have ileal disease, whereas African American patients were significantly more likely to have ileocolonic and colonic disease. Age at diagnosis younger than 40 years (odds ratio [OR] 4.41, 95% CI 1.84-10.56) and ileocolonic disease (OR 2.39, 95% CI 1.24-4.63) were independent risk factors for perforating disease behavior. Similarly, age at diagnosis younger than 40 (OR 2.79, 95% CI 1.45-5.33), ileal disease (OR 3.76, 95% CI 1.66-8.48), and ileocolonic disease (OR 2.57, 95% CI1.21-5.46) were associated with the need for surgery. Female gender (OR 4.23, 95% CI 1.87-9.58) and a positive family history of CD (OR 3.45, 95% CI 1.49-8.0) were associated with joint manifestations of CD. DISCUSSION: We did not detect differences in disease behavior, severity, or joint EIM by race. Although African American patients were more likely to have ileocolonic or colonic disease, these factors did not affect disease behavior or severity.
BACKGROUND: Our objectives were to assess the differences in perforating disease behavior, disease severity, and extraintestinal manifestations (EIM) in patients with Crohn's disease (CD) by race. MATERIALS AND METHODS: We identified outpatients with CD evaluated at the University of Maryland Gastroenterology Faculty Practice office or the Baltimore Veterans Affairs Maryland Health Care System, from 1997 to 2005. We assessed age at diagnosis, disease behavior, disease location, need for surgery and EIM. RESULTS: Race was not associated with perforating disease behavior (relative risk [RR] 0.79, 95% confidence interval [CI] 0.46-1.35), need for surgery (RR 0.89, 95% CI 0.56-1.12), and EIM of CD (RR 0.77, 95% CI 0.46-1.27). White patients were significantly more likely to have ileal disease, whereas African American patients were significantly more likely to have ileocolonic and colonic disease. Age at diagnosis younger than 40 years (odds ratio [OR] 4.41, 95% CI 1.84-10.56) and ileocolonic disease (OR 2.39, 95% CI 1.24-4.63) were independent risk factors for perforating disease behavior. Similarly, age at diagnosis younger than 40 (OR 2.79, 95% CI 1.45-5.33), ileal disease (OR 3.76, 95% CI 1.66-8.48), and ileocolonic disease (OR 2.57, 95% CI1.21-5.46) were associated with the need for surgery. Female gender (OR 4.23, 95% CI 1.87-9.58) and a positive family history of CD (OR 3.45, 95% CI 1.49-8.0) were associated with joint manifestations of CD. DISCUSSION: We did not detect differences in disease behavior, severity, or joint EIM by race. Although African American patients were more likely to have ileocolonic or colonic disease, these factors did not affect disease behavior or severity.
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