J Allergy Clin Immunol 2004;113:1199-1203.
The researchers found that one celiac in 173 (16.6%) had at least one additional allergy, compared with 523 of their relatives (19%), and 43 of their spouses (13.5%). Patients with celiac disease were also more likely (3.8%) to have atopic dermatitis than their relatives (2.3%) or their spouses (1.3%). The amount of time that the celiac patients went undiagnosed and therefore untreated did not seem to influence the presence of allergy or atopic dermatitis. It is possible that a longer period of time on a gluten-free diet could influence the prevalence of allergy in those with celiac disease, and more research needs to be done to determine if being gluten-free longer can decrease allergies in those with celiac disease.