1. Institute for Medical Information Processing, Biometry, and Epidemiology, Ludwig-Maximilians University Munich, Munich, Bavaria, Germany
2. Institute of Health Economics and Health Care Management, Helmholtz Zentrum München, Neuherberg, Germany
3. Institute of General Practice and Health Services Research, University Hospital rechts der Isar, Technical University of Munich, Munich, Germany
4. Munich Center of Health Sciences, Ludwig-Maximilians University Munich, Munich, Bavaria, Germany
5. Competence Center for Nutrition and the Institute of the Bavarian State Ministry of Food, Agriculture and Forestry, Freising, Bavaria, Germany