Prevalence of alopecia areata in Japan: Estimates from a nationally representative sample.

ABSTRACT: Data on the prevalence of alopecia areata (AA) in Japan is limited and the epidemiology of the disease there is not well understood; therefore, it is critical to examine the prevalence and severity of AA in Japan to inform the need for future treatments and research. A cross-sectional, web-based survey was conducted in Japan from January through March 2021. A total of 45 006 participants were identified through general population survey panels and asked about their experience with AA and hair loss. The Alopecia Assessment Tool and the Scalp Hair Assessment PRO^TM were adopted to screen for history of AA and assess disease severity, respectively. Eligible participants submitted photos of their scalp, which were reviewed by three board-certified dermatologists to evaluate the prese

SUBMITTER: Aranishi T 

PROVIDER: S-EPMC10100223 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature