1 Institute for Biometrics and Epidemiology, German Diabetes Center (DDZ), Leibniz Center for Diabetes Research at Heinrich Heine University, Düsseldorf, Germany thaddaeus.toennies@ddz.de.
2 Institute for Biometrics and Epidemiology, German Diabetes Center (DDZ), Leibniz Center for Diabetes Research at Heinrich Heine University, Düsseldorf, Germany.
3 German Center for Diabetes Research (DZD), Munich, Neuherberg, Germany.
4 Department of Statistics, Ludwig Maximilians University, Munich, Germany.
5 Chair for Medical Biometry and Epidemiology, Witten/Herdecke University, Faculty of Health/School of Medicine, Witten, Germany.
6 Centre for Health and Society, Medical Faculty, Heinrich Heine University, Düsseldorf, Germany.