[1] Inland Norway Univ Appl Sci, Fac Social & Hlth Sci, Dept Publ Hlth & Sport Sci, Elverum, Norway
[2] Vestfold Hosp Trust, Div Mental Hlth & Addict, Tonsberg, Norway
[3] Western Norway Univ Appl Sci, Fac Hlth & Social Sci, Dept Hlth & Caring Sci, Bergen, Norway
[4] Norwegian Univ Sci & Technol, Dept Educ & Lifelong Learning, Trondheim, Norway
[5] Inland Norway Univ Appl Sci, Fac Social & Hlth Sci, Dept Publ Hlth & Sport Sci, Hamarvegen 112, N-2408 Elverum, Norway