1. Department of Preventive Medicine and Public Health, Universidad Complutense de Madrid, Madrid, Spain
2. CIBER Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
3. Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Madrid, Spain
4. Department of Preventive Medicine and Public Health, Universidad de Alicante, Alicante, Spain
5. Department of Politics, Drexel University, Philadelphia, PA, USA
6. Demographic and Social Statistics, Institute of Statistics and Cartography of Andalusia, Seville, Spain
7. National Epidemiology Center, Instituto de Salud Carlos III, Madrid, Spain
8. National School of Public Health, Instituto de Salud Carlos III, Madrid, Spain