[1] NTNU Norwegian Univ Sci & Technol, Fac Med & Hlth Sci, Dept Publ Hlth & Nursing, Postboks 8905, N-7491 Trondheim, Norway
[2] Trondheim Municipal, Chief Execut Off, Trondheim, Norway
[3] Univ Bergen, Dept Global Publ Hlth & Primary Care, Ctr Elderly & Nursing Home Med, Bergen, Norway
[4] Western Norway Univ Appl Sci, Fac Hlth & Social Sci, Dept Nursing, Bergen, Norway