Incidence and Prevalence of 73 Different Genodermatoses: A Nationwide Study in Sweden.

Publisher: Society for the Publication of Acta Dermato-Venereologica Country of Publication: Sweden NLM ID: 0370310 Publication Model: Electronic Cited Medium: Internet ISSN: 1651-2057 (Electronic) Linking ISSN: 00015555 NLM ISO Abbreviation: Acta Derm Venereol Subsets: MEDLINE

Publication: 2006- : Uppsala: Society for the Publication of Acta Dermato-Venereologica
Original Publication: Stockholm : Acta dermato-venereologica

Incidence*; Humans ; Prevalence ; Sweden/epidemiology ; Cohort Studies ; Retrospective Studies

This retrospective registry-based cohort study aimed to estimate the incidence and prevalence of genodermatoses in the Swedish population and to analyse associated healthcare usage. Patients diagnosed with genodermatoses were identified from the patient registry of Sahlgrenska University Hospital (Gothenburg, Sweden) between 2016 and 2020. Clinical data from medical records were used to verify diagnoses recorded in the National Patient Registry (NPR). The NPR was then searched for International Classification of Diseases, Tenth Revision (ICD-10) codes Q80-82 and Q84 from 2001 to 2020. The local cohort included 298 patients with 36 unique genodermatosis diagnoses. Verification of these diagnoses in the NPR showed positive predictive values of over 90%. The NPR search yielded 13,318 patients with 73 unique diagnoses, including ichthyoses (n = 3,341; 25%), porokeratosis (n = 2,277; 17%), palmoplantar keratodermas (n = 1,754; 13%), the epidermolysis bullosa group (n = 1011; 7%); Darier disease (n = 770; 6%), Hailey-Hailey disease (n = 477; 4%) and Gorlin syndrome (n = 402; 3%). The incidence and prevalence of each diagnosis were calculated based on the nationwide cohort and are reported. A total of 149,538 outpatient visits were registered, a mean of 4.6 visits per patient. This study provides a valuable resource for the epidemiology of genodermatoses by reporting on the incidence and prevalence of 73 different genodermatoses.

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Date Created: 20230824 Date Completed: 20230825 Latest Revision: 20230831

20231215

PMC10464823

10.2340/actadv.v103.12404

37615526