• J Augustin, A Kis, C Sorbe, I Schäfer, and M Augustin.
• Institute for Health Services Research in Dermatology and Nursing (IVDP), University Medical Center Hamburg-Eppendorf (UKE), Hamburg, Germany.
• J Eur Acad Dermatol Venereol. 2018 Nov 1; 32 (11): 1906-1913.

BackgroundSkin cancer being the most common cancer in Germany has shown increasing incidence in the past decade. Since mostly caused by excessive UV exposure, skin cancer is largely related to behaviour. So far, the impact of regional and sociodemographic factors on the development of skin cancer in Germany is unclear.ObjectivesThis study aimed to investigate the association of potential predictive factors with the prevalence of skin cancers in Germany.MethodsNationwide ambulatory care claims data from persons insured in statutory health insurances (SHI) with malignant melanoma (MM, ICD-10 C43) and non-melanocytic skin cancer (NMSC, ICD-10 C44) in the years 2009-2015 were analysed. In addition, sociodemographic population data and satellite-based UV and solar radiation data were associated. Descriptive and multivariate (spatial) statistical analyses (e.g. Bayes' smoothing) were conducted on county level.ResultsData from 70.1 million insured persons were analysed. Age-standardized prevalences per 100 000 SHI insured persons for MM and NMSC were 284.7 and 1126.9 in 2009 and 378.5 and 1708.2 in 2015. Marked regional variations were observed with prevalences between 32.9% and 51.6%. Multivariate analysis shows among others statistically significant positive correlations between higher income and education, and MM/NMSC prevalence.ConclusionPrevalence of MM and NMSC in Germany shows spatio-temporal dynamics. Our results demonstrate that regional UV radiation, sunshine hours and sociodemographic factors have significant impact on skin cancer prevalence in Germany. Individual behaviour obviously is a major determinant which should be subject to preventive interventions.© 2018 European Academy of Dermatology and Venereology.

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