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The Asian Society for Psoriasis (ASP) has been conducting an epidemiological study across various Asian countries and regions to elucidate the and compare the epidemiology of psoriasis. A total of 1948 cases were analyzed, with 938 cases from Japan, 530 cases from China, 325 cases from Korea, 141 cases from Chinese Taipei, and 14 cases from Thailand, all of which were enrolled between 2020 and 2022. In the Asian region total, the male\u2013female ratio was 1.87:1 and the peak age at disease onset was 20\u201329\u2009years. The proportion of psoriasis vulgaris (PsV), psoriatic arthritis (PsA), and pustular psoriasis (PP) was 80.1%, 17.7%, and 2.2%, respectively, and PsA was more commonly associated with nail symptoms than psoriasis vulgaris (PsV). Of the patients, 13% had a familial history of psoriasis and the most frequently affected family member was the father. Regarding treatment, 78.3% of the patients received topical medications, 9.0% underwent phototherapy, 34.0% received oral medications, and 36.1% were treated with biological agents. This study provided valuable information on the epidemiology and treatment of psoriasis using the registry data collected with the common reporting form in the same period in major Asian countries and regions. Male predominance is a distinctive feature of psoriasis in Asia. This epidemiological data registry in the ASP will continue afterwards.<\/jats:p>","DOI":"10.1111\/1346-8138.17132","type":"journal-article","created":{"date-parts":[[2024,2,12]],"date-time":"2024-02-12T13:14:25Z","timestamp":1707743665000},"page":"567-583","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":13,"title":["Epidemiological analysis of the patients with psoriasis in Asian countries and region using the same clinical case cards between 2020 and 2022"],"prefix":"10.1111","volume":"51","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0299-7943","authenticated-orcid":false,"given":"Michio","family":"Tokuyama","sequence":"first","affiliation":[{"name":"Department of Dermatology Tokai University School of Medicine  Kanagawa Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pingshen","family":"Fan","sequence":"additional","affiliation":[{"name":"Department of Dermatology, Xijing Hospital Fourth 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