[1] Univ Barcelona, Hosp Univ Bellvitge, Lhosp De Llobregat, Spain
[2] Univ Alcala, Fac Med & Hlth Sci, Dept Surg Med & Social Sci, Alcala De Henares, Spain
[3] Univ Politecn Madrid, Biomed Image Technol, ISCIII, Madrid, Spain
[4] ISCIII, CIBER BBN, Madrid, Spain
[5] Univ New York, Grad Sch Publ Hlth & Hlth Policy, Dept Epidemiol & Biostat, New York, NY 13235 USA
[6] Univ Politecn Cataluna, Campus Nord, Barcelona, Spain
[7] Estadist & Econ Aplicada Univ Barcelona, Dept Econometria, Barcelona, Spain
[8] Univ Alcala, Fac Med & Hlth Sci, Dept Med & Med Special, Alcala De Henares, Spain
[9] Ramon & Cajal Inst Sanitary Res IRYCIS, Madrid, Spain
[10] Univ Hosp Principe Asturias, Serv Internal Med & Immune Syst Dis Rheumatol, CIBEREHD, Alcala De Henares, Spain