Linear IgA Bullous Dermatosis in Korea Using the Nationwide Health Insurance Database

Author:

Kim Yu Rim1,Kim Ji Hyeon1,Kim Sang Won2ORCID,Lee Jae Min3ORCID,Bae Jacob S.4ORCID

Affiliation:

1. Department of Medicine, College of Medicine, Yeungnam University, Daegu 42415, Republic of Korea

2. Medical Research Center, College of Medicine, Yeungnam University, Daegu 42415, Republic of Korea

3. Department of Pediatrics, College of Medicine, Yeungnam University, Daegu 42415, Republic of Korea

4. Department of Internal Medicine, College of Medicine, Yeungnam University, Daegu 42415, Republic of Korea

Abstract

(1) Background: Linear immunoglobulin A bullous dermatosis (LABD) is a rare autoimmune, subepidermal blistering disease, characterized by linear IgA deposits along the epidermal basement membrane. LABD is idiopathic and is associated with medication and systemic autoimmune diseases. (2) Methods: We investigated the demographic characteristics, disease course, causative agents, and associated diseases in Korean patients with LABD. The Korean Health Insurance Review and Assessment Service database was used to obtain data. We identified 670 LABD cases between 2010 and 2022. (3) Results: The annual incidence of LABD was 1.3 per 100,000 persons, with a higher prevalence in individuals ≥60 years old. The patients were treated with dapsone for 30.7 ± 56.7 days, had 1.3 ± 0.7 hospital visits, and were hospitalized for 19.8 ± 19.7 days. Risk factors, including malignancy, commonly preceded LABD. Antibiotic use, specifically vancomycin and third-generation cephalosporins, was a risk factor. The mean age of LABD diagnosis was 55.9 ± 21.7 years. (4) Conclusion: This is the first published study to assess a nationwide cohort for LABD. The incidence of LABD was higher than that in other studies. Most case reports have linked LABD with the administration of specific antibiotics; however, this study shows there were more associations with other conditions.

Funder

Yeungnam University

Publisher

MDPI AG

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