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TOPLINE:
A retrospective study linked alopecia areata (AA) with an increased risk for microscopic colitis (MC), celiac disease, Crohn’s disease, eosinophilic esophagitis, and ulcerative colitis.
METHODOLOGY:
- Researchers conducted a retrospective cohort study using the TriNetX global research database to examine associations between AA and immune-mediated gastrointestinal conditions.
- The analysis included 117,674 patients (mean age, 33.5 years; 60.9% women) with AA matched 1:1 by age, sex, and race (48.70% White, 14.50% Black, and 7.35% Asian) to control individuals.
- The outcome was the prevalence of immune-mediated gastrointestinal conditions, notably MC.
TAKEAWAY:
- Patients with AA had a significantly higher risk for MC (odds ratio [OR], 1.88; P < .001), including both lymphocytic colitis (OR, 1.83; P < .001) and collagenous colitis (OR, 1.80; P = .003).
- Patients with both AA and MC were younger (59.6 vs 62.8 years; P = .003) than those with MC without AA.
- AA was also tied to a higher risk for celiac disease (OR, 1.87), Crohn’s disease (OR, 1.75), eosinophilic esophagitis (OR, 1.59), and ulcerative colitis (OR, 1.38; P < .001 for all).
IN PRACTICE:
“This study reinforces the association between AA and gastrointestinal immune-mediated conditions, underscoring the importance of screening in the AA population and gastroenterology referral when patients present with chronic digestive symptoms,” the authors of the study wrote.
SOURCE:
The study was led by Milan Hirpara, Department of Dermatology, University of California, Irvine, and was published online on August 25 in JAAD International.
LIMITATIONS:
Study limitations included the retrospective design and potential misclassification bias.
DISCLOSURES:
The authors reported having no funding sources or conflicts of interest.
This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication.
