1. Nursing Department, University of Jaen, 23071 Jaen, Spain
2. Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), 28029 Madrid, Spain
3. Department of Nursing, Physiotherapy and Occupational Therapy, Ciudad Real Faculty of Nursing, University of Castilla-La Mancha, 13071 Ciudad Real, Spain
4. Hospital Universitario de Torrejon, 28850 Madrid, Spain
5. Hospial Universitario Reina Sofia, 14004 Cordoba, Spain
6. Department of Nursing, Physiotherapy and Occupational Therapy, Albacete Faculty of Nursing, University of Castilla-La Mancha, 02008 Albacete, Spain