[1] Ctr Nacl Epidemiol, Inst Salud Carlos III, Madrid 28029, Spain
[2] Univ Autonoma Madrid IdiPAZ, Sch Med, Dept Prevent Med & Publ Hlth, Madrid, Spain
[3] Publ Hlth Agcy Barcelona, Barcelona, Spain
[4] Biomed Res Ctr Network Epidemiol & Publ Hlth CIBE, Madrid, Spain
[5] Inst Biomed Res IIB Sant Pau, Barcelona, Spain
[6] Galician Hlth Author, Galician Directorate Publ Hlth, Epidemiol Unit, Santiago De Compostela, Spain
[7] Univ Santiago Compostela, Dept Prevent Med & Publ Hlth, Santiago De Compostela, Spain
[8] ICO, Canc Control & Prevent Programme, Tobacco Control Unit, Barcelona, Spain
[9] IDIBELL, Canc Control & Prevent, Barcelona, Spain
[10] Univ Barcelona, Sch Med, Dept Clin Sci, Barcelona, Spain
[11] Univ Int Catalunya, Dept Basic Sci, Biostatist Unit, Barcelona, Spain
[12] Terrassa City Council, Community Hlth Unit, Terrassa, Spain
[13] Pompeu Fabra Univ, Dept Expt & Hlth Sci, Barcelona, Spain