1. Research Group in Nursing and Health Care, Instituto de Investigación Biomédica de A Coruña (INIBIC), Complexo Hospitalario Universitario de A Coruña (CHUAC), Universidade da Coruña, Sergas, 15006 A Coruña, Spain
2. Department of Health Sciences, Faculty of Nursing and Podiatry, Universidade da Coruña, Campus Esteiro, 15471 Ferrol, Spain
3. Research Group in Rheumatology and Health, Universidade da Coruña (UDC), 15006 A Coruña, Spain