Text and Data Mining valid from 2019-01-06
Received: 28 September 2018
Accepted: 23 November 2018
First Online: 6 January 2019
Change Date: 14 March 2019
Change Type: Correction
Change Details: In the original publication of this article , some numbers in the below sentence errors in the Results section of the Abstract:
Ethics approval and consent to participate
: In accordance to the German guideline for conducting administrative data analyses “Good Practice in Secondary Data Analysis (GPS)” no ethical approval was required for this study.Swart E, Gothe H, Geyer S, Jaunzeme J, Maier B, Grobe TG, Ihle P; German Society for Social Medicine and Prevention; German Society for Epidemiology. [Good Practice of Secondary Data Analysis (GPS): guidelines and recommendations]. Gesundheitswesen 2015;77(2):120–6.
: Not applicable.
: The authors declare that they have no competing interests.
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