[1] Univ Basel, Dept Publ Hlth, Inst Nursing Sci, Basel, Switzerland
[2] Univ Appl Sci & Arts Western Switzerland HES SO, Sch Hlth Sci HEdS FR, Fribourg, Switzerland
[3] Univ Hosp, Inst Social & Prevent Med, Lausanne, Switzerland
[4] Katholieke Univ Leuven, Acad Ctr Nursing & Midwifery, Dept Publ Hlth & Primary Care, Leuven, Belgium
[5] Univ Missouri Kansas City, Sch Nursing & Hlth Studies, Kansas City, MO USA