1. National School of Public Health, Institute of Health Carlos III , Madrid, Spain
2. CIBER for Epidemiology and Public Health (CIBERESP) , Madrid, Spain
3. Department of Sociology II, University of Alicante , Alicante, Spain
4. State Secretariat for Security Ministry of Interior , Madrid, Spain
5. Department of Community Nursing, Preventive Medicine, Public Health and History of Science, University of Alicante , Alicante, Spain