1. Institute of Social Medicine and Prevention, University Medicine Greifswald, Greifswald, Germany
2. German Centre for Cardiovascular Research (partner site Greifswald), Greifswald, Germany
3. Department of Psychiatry and Psychotherapy, Medical University of Luebeck, Luebeck, Germany
4. Department of Epidemiology and Health Monitoring, Robert Koch Institute, Berlin, Germany
5. Institute for Medical Psychology, University Medicine Greifswald, Greifswald, Germany