About the Authors

Kjerstin Tevik

Roles Formal analysis, Methodology, Writing – original draft, Writing – review & editing

kjtev@online.no

Affiliations Norwegian National Advisory Unit on Ageing and Health, Vestfold Hospital Trust, Tønsberg, Norway, Department of Public Health and General Practice, Faculty of Medicine, Norwegian University of Science and Technology (NTNU), Trondheim, Norway

Geir Selbæk

Roles Methodology, Writing – original draft, Writing – review & editing

Affiliations Norwegian National Advisory Unit on Ageing and Health, Vestfold Hospital Trust, Tønsberg, Norway, Research Centre for Old Age Psychiatric Research, Innlandet Hospital Trust, Ottestad, Norway, Faculty of Medicine, Institute of Health and Society, University of Oslo, Oslo, Norway

Knut Engedal

Roles Methodology, Writing – original draft, Writing – review & editing

Affiliations Norwegian National Advisory Unit on Ageing and Health, Vestfold Hospital Trust, Tønsberg, Norway, Department of Geriatric Medicine, Oslo University Hospital, Oslo, Norway

Arnfinn Seim

Roles Methodology, Writing – original draft, Writing – review & editing

Affiliation Department of Public Health and General Practice, Faculty of Medicine, Norwegian University of Science and Technology (NTNU), Trondheim, Norway

Steinar Krokstad

Roles Methodology, Writing – original draft, Writing – review & editing

Affiliations HUNT Research Centre, Department of Public Health and General Practice, Faculty of Medicine, Norwegian University of Science and Technology (NTNU), Levanger, Norway, Psychiatric Department, Levanger Hospital, Nord-Trøndelag Hospital Trust, Levanger, Norway

Anne-S. Helvik

Roles Formal analysis, Methodology, Writing – original draft, Writing – review & editing

Affiliations Norwegian National Advisory Unit on Ageing and Health, Vestfold Hospital Trust, Tønsberg, Norway, Department of Public Health and General Practice, Faculty of Medicine, Norwegian University of Science and Technology (NTNU), Trondheim, Norway, St. Olavs University Hospital, Trondheim, Norway

Competing Interests

The authors have declared that no competing interests exist.