[1] Dept Hlth & Social Welf, Lausanne, Switzerland
[2] Univ Porto, Escola Super Enfermagem Porto, Inst Biomed Sci Abel Salazar, Porto, Portugal
[3] Lausanne Univ Hosp, Serv Old Age Psychiat, Prilly, Switzerland
[4] Higher Sch Nursing Porto, Porto, Portugal
[5] Dept Publ Hlth & Primary Care, Lausanne, Switzerland
[6] Univ Appl Sci & Arts Western Switzerland, Nursing Sci, HES SO Valais Wallis, Sion, Switzerland