{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,7]],"date-time":"2026-07-07T18:22:56Z","timestamp":1783448576384,"version":"3.55.0"},"reference-count":70,"publisher":"Wiley","issue":"7","license":[{"start":{"date-parts":[[2026,3,19]],"date-time":"2026-03-19T00:00:00Z","timestamp":1773878400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,3,19]],"date-time":"2026-03-19T00:00:00Z","timestamp":1773878400000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J Deutsche Derma Gesell"],"published-print":{"date-parts":[[2026,7]]},"abstract":"<jats:title>Summary<\/jats:title>\n                  <jats:p>In the project funded by the Innovation Committee at the G\u2010BA, the S3 guideline for the diagnosis and treatment of AA was developed between 2023 and 2025. The interdisciplinary expert panel consisted of representatives from the German Dermatological Society, in particular from the Pediatric Dermatology Working Group, the Professional Association of German Dermatologists, the German Society for Psychosomatic Medicine and Psychotherapy, the German Society for Pediatrics and Adolescent Medicine, the Austrian Society for Dermatology and Venereology, a hairdresser as an external consultant and two patient representatives.<\/jats:p>\n                  <jats:p>In the first of two parts, we present the key statements on epidemiology and the recommendations for diagnosis. Data from Germany show a population\u2010based prevalence of AA of 0.22% (95%\u00a0CI 0.21\u20130.22) for 2016 and 0.21% (95%\u00a0CI 0.20\u20130.22) for 2020. This means that 170,000 people in Germany were diagnosed with alopecia areata (AA) in 2020. International data show a pooled prevalence of 2.1%, but with large regional differences. Data on the incidence of AA from Germany show that 72 patients per 100,000 were newly diagnosed with AA in 2020 (RR 0.072%; 95%\u00a0CI 0.07\u20130.08). Extrapolated to the German population, this means that around 70,000 people were newly diagnosed with AA in 2020.<\/jats:p>","DOI":"10.1111\/ddg.70065x","type":"journal-article","created":{"date-parts":[[2026,3,19]],"date-time":"2026-03-19T17:00:27Z","timestamp":1773939627000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["S3 guideline diagnostics and therapy of alopecia areata \u2013 Part 1: Diagnostics and epidemiology"],"prefix":"10.1111","volume":"24","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3528-3752","authenticated-orcid":false,"given":"Ulrike","family":"Blume\u2010Peytavi","sequence":"first","affiliation":[{"name":"Department of Dermatology, Venereology and Allergology Charit\u00e9 \u2013 Universit\u00e4tsmedizin Berlin Corporate Member of Freie Universit\u00e4t Berlin and Humboldt\u2010Universit\u00e4t zu Berlin, Berlin Institute of Health  Berlin Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6569-8636","authenticated-orcid":false,"given":"Andria","family":"Constantinou","sequence":"additional","affiliation":[{"name":"Department of Dermatology, Venereology and Allergology Charit\u00e9 \u2013 Universit\u00e4tsmedizin Berlin Corporate Member of Freie Universit\u00e4t Berlin and Humboldt\u2010Universit\u00e4t zu Berlin, Berlin Institute of Health  Berlin Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5864-7857","authenticated-orcid":false,"given":"Tsenka","family":"Tomova\u2010Simitchieva","sequence":"additional","affiliation":[{"name":"Department of Dermatology, Venereology and Allergology Charit\u00e9 \u2013 Universit\u00e4tsmedizin Berlin Corporate Member of Freie Universit\u00e4t Berlin and Humboldt\u2010Universit\u00e4t zu Berlin, Berlin Institute of Health  Berlin Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4433-2790","authenticated-orcid":false,"given":"Adrian","family":"Tanew","sequence":"additional","affiliation":[{"name":"Private practice  Vienna Austria"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9396-3938","authenticated-orcid":false,"given":"Michael","family":"Sticherling","sequence":"additional","affiliation":[{"name":"Department of Dermatology University Hospital Erlangen  Erlangen Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2755-3129","authenticated-orcid":false,"given":"Hermann","family":"Girschick","sequence":"additional","affiliation":[{"name":"Department of Pediatrics and Adolescent Medicine Vivantes Netzwerk f\u00fcr Gesundheit GmbH, Klinikum im Friedrichshain  Berlin Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9134-8413","authenticated-orcid":false,"given":"Annika","family":"Vogt","sequence":"additional","affiliation":[{"name":"Department of Dermatology, Venereology and Allergology Charit\u00e9 \u2013 Universit\u00e4tsmedizin Berlin Corporate Member of Freie Universit\u00e4t Berlin and Humboldt\u2010Universit\u00e4t zu Berlin, Berlin Institute of Health  Berlin Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Uwe","family":"Schwichtenberg","sequence":"additional","affiliation":[{"name":"Derma Nord Dermatology Practice  Bremen Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0546-3269","authenticated-orcid":false,"given":"Uwe","family":"Gieler","sequence":"additional","affiliation":[{"name":"Psychodermatology Competence Center University Hospital Giessen, Vitos Giessen\u2010Marburg gemeinn\u00fctzige GmbH, Vitos Psychosomatik Giessen  Giessen Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andr\u00e9","family":"M\u00e4rtens","sequence":"additional","affiliation":[{"name":"Hairdresser  Berlin Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kerstin","family":"Zienert","sequence":"additional","affiliation":[{"name":"Alopecia Areata Deutschland e.V.  Krefeld Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Claudia","family":"Stenders","sequence":"additional","affiliation":[{"name":"Alopecia Areata Deutschland e.V.  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