Epidemiology of inflammatory bowel disease among an indigent multi-ethnic population in the United States.

The fistulizing phenotype was seen twice as often in Hispanics than Caucasians or African-Americans, although this did not reach statistical significance, possibly due to the small sample size (32% versus 17%, OR 2.0, 95% CI: 0.7–5.5, P = 0.20, versus 16%, OR 2.2, 95% CI: 0.7–5.2, P = 0.18, respectively) ( Figure 2 ).

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