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. 2022 Jun 6;17(6):e0269358.
doi: 10.1371/journal.pone.0269358. eCollection 2022.

Epidemiology and clinical features of Birt-Hogg-Dubé syndrome: A nationwide population-based study in South Korea

Hyung Jun Park  1 , Ye-Jee Kim  2 , Min-Ju Kim  2 , Ho Cheol Kim  1
Affiliations

Epidemiology and clinical features of Birt-Hogg-Dubé syndrome: A nationwide population-based study in South Korea

Hyung Jun Park et al. PLoS One. .

Abstract

Background: Birt-Hogg-Dubé (BHD) syndrome is an ultrarare lung disease with unclear prevalence and incidence. Our study aimed to identify the epidemiological and clinical features of BHD syndrome by using nationwide claims data from the Korean Health Insurance Review and Assessment service.

Methods: Patients with BHD syndrome who had the following criteria were included: 1) tested for folliculin gene mutation, and 2) had at least one of the conditions: other specified malformation syndromes, fibrofolliculoma, acrochordon, lung cyst, cancer, and pneumothorax based on International Classification of Disease-10 code.

Results: We found 26 patients with BHD syndrome from 2017 to 2019. The prevalence of BHD syndrome was 5.67 per 107 population, with no peak age. Among incidence cases, the median age of diagnosis was 51 years, with slightly more females than males (n = 15, 57.7%). Over half of the patients (n = 14, 53.8%) experienced pneumothorax, and 10 (38.5%) developed malignant neoplasm within the clinical course.

Conclusions: The prevalence of BHD syndrome in Korea is extremely low. However, affected patients manifest several comorbidities, including malignant neoplasm and repetitive pneumothorax.

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Conflict of interest statement

The authors have declared that no competing interests exist.

Figures

Fig 1
Fig 1. Hospitalization for pneumothorax compared with date of BHD diagnosis.
The figure shows the onset and in-hospital period for pneumothorax per patient. The month zero is defined by the day of BHD diagnosis, and the shaded area is the previous 3 months of the diagnosis. The hospital admission period is depicted as the length of each bar.
See this image and copyright information in PMC

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