1. Public Health Promotion Unit; National Institute for Health and Welfare; Helsinki Finland
2. Division of Clinical Geriatrics, Center for Alzheimer Research, Care Sciences and Society (NVS); Karolinska Institutet; Stockholm Sweden
3. School of Health Care and Social Work; Seinäjoki University of Applied Sciences; Seinäjoki Finland
4. Ageing, Disability and Functioning Unit; National Institute for Health and Welfare; Helsinki Finland
5. Institute of Clinical Medicine/Neurology; University of Eastern Finland; Kuopio Finland
6. Center for Life Course Health Research; University of Oulu; Oulu Finland
7. Medical Research Center Oulu; Oulu University Hospital; Oulu Finland
8. Oulu City Hospital; Oulu Finland
9. Institute of Public Health and Clinical Nutrition; University of Eastern Finland; Kuopio Finland
10. Joint Municipal Authority for North Karelia Social and Health Services (Siun Sote); Joensuu Finland
11. Seinäjoki Health Centre; Seinäjoki Finland
12. Kuopio Research Institute of Exercise Medicine; Kuopio Finland
13. Neurocenter, Department of Neurology; Kuopio University Hospital; Kuopio Finland
14. University of Helsinki and Helsinki University Hospital; Helsinki Finland
15. Department of Public Health; University of Helsinki; Helsinki Finland
16. National School of Public Health; Madrid Spain
17. Neuroepidemiology and Ageing Research Unit; School of Public Health, Imperial College London; London United Kingdom