1. Department of Social and Preventive Medicine, University of Potsdam, Potsdam, Germany
2. Social and Preventive Medicine, Department of Sports and Health Sciences, Intrafaculty Unit of Cognitive Sciences, Faculty of Human Science, and Faculty of Health Sciences Brandenburg, Research Area Services Research and e-Health, University of Potsdam, Potsdam, Germany
3. Agaplesion Bethesda Clinic Ulm, Institute for Geriatric Research, Ulm University, Geriatric Center Ulm, Ulm, Germany
4. Department of Cardiothoracic and Vascular Surgery, Ulm University Hospital, Ulm, Germany
5. Department of Geriatric Psychiatry and Psychotherapy, Klinikum Stuttgart, Stuttgart, Germany
6. Division of Geriatrics, University Medical Center Goettingen, Göttingen, Germany
7. Department of Neurology, University Hospital Ulm, Ulm, Germany
8. Helios Clinic for Cardiac Surgery Karlsruhe, Karlsruhe, Germany
9. Geriatric Center Karlsruhe, ViDia Christian Clinics Karlsruhe, Karlsruhe, Germany
10. Center for Geriatrics and Gerontology, Medical Center University of Freiburg, Freiburg, Germany
11. Department of Medicine, McGill University, Montreal, Quebec, Canada
12. Geriatric Center at the University Hospital Tübingen, Tübingen, Germany
13. Department of Psychiatry and Psychotherapy, University Hospital of Tübingen, Tübingen, Germany
14. for the PAWEL Study Group