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- Apr 15, 2012
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Results
Twenty-three of 37 or 62% of patients tested positive to at least one environmental allergen. Twenty-one or 57% of patients had rhinitis and 2 patients had asthma. Sensitivity to seasonal allergens was identified in 46% of patients (ragweed 27%, grass 24%, trees 35% and mold 19%). The majority of patients with sensitivity to seasonal allergens had small bowel involvement (82%). 100% of CD patients with seasonal allergy were diagnosed before age 40.
Conclusions
There is a high prevalence of environmental allergy in patients with CD. Small bowel involvement and diagnosis prior to age 40 were characteristic clinical features. The high rate of pollen and mold allergy may play a role in seasonal exacerbations of CD.
from:
http://www.jacionline.org/article/S0091-6749(04)00472-5/abstract
Increased prevalence of environmental allergy in patients with Crohn's disease