1 Centre for Elderly and Nursing Home Medicine, Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway.
2 Bergen Municipality, Bergen, Norway.
3 Centre for Elderly and Nursing Home Medicine, Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway. Elisabeth.flo@uib.no.
4 Department of Clinical Psychology, University of Bergen, Bergen, Norway. Elisabeth.flo@uib.no.
5 Norwegian National Advisory Unit on Ageing and Health (Ageing and Health), Vestfold hospital and Oslo universitet hospital, Ullevaal, Oslo, Norway.