[1] Tampere Univ, Hlth Sci, Fac Social Sci, Nursing Sci, Tampere 33014, Finland
[2] Tampere Univ, Hlth Sci, Fac Social Sci, Tampere 33014, Finland
[3] Finnish Inst Hlth & Welf, Dept Publ Hlth & Welf Knowledge Management & Cocr, PL 30, Helsinki 00271, Finland
[4] Univ Turku, Dept Nursing Sci, FI-20014 Turku, Finland