1. Department of Social Epidemiology, Institute of Public Health and Nursing Research, University of Bremen, Bremen, Germany
2. Health Sciences Bremen, University of Bremen, Bremen, Germany
3. Department of Prevention and Health Promotion, Institute of Public Health and Nursing Research, University of Bremen, Bremen, Germany
4. Department of Community Health, Hochschule für Gesundheit, Bochum, Germany
5. Institute of Epidemiology, Helmholtz Zentrum München - German Research Center for Environmental Health (GmbH), Neuherberg, Germany
6. Institute for Medical Information Processing, Biometry and Epidemiology, Medical Faculty, Ludwig-Maximilian-Universität München, Munich, Germany
7. Institute of Health Economics and Health Care Management, Helmholtz Zentrum München - German Research Center for Environmental Health (GmbH), Neuherberg, Germany
8. Department of Health Services Research, School of Medicine and Health Sciences, Carl von Ossietzky University Oldenburg, Oldenburg, Germany