[1] Bioaraba Hlth Res Inst, Vitoria, Spain
[2] Araba Integrated Hlth Org, Osakidetza Basque Hlth Serv, C Jose Achotegui S-N, Vitoria 01009, Alava, Spain
[3] Univ Basque Country, Vitoria Gasteiz Sch Nursing, Vitoria, Spain
[4] Univ Basque Country, Fac Psychol, Dept Basic Psychol Proc & Dev, San Sebastian, Spain
[5] Univ Publ Navarra, Hlth Sci Fac, Dept Hlth Sci, Pamplona, Spain
[6] Navarre Inst Hlth Res, IdiSNA, Pamplona, Spain
[7] Univ Deusto, Hlth Sci Fac, Dept Psychol, Bilbao, Spain