[1] Gerencia Reg Salud Castilla & Leon SACyL, Unidad Invest Atenc Primaria Salamanca APISAL, Gerencia Atenc Primaria Salamanca, Ave Portugal 83, Salamanca 37005, Spain
[2] Inst Invest Biomed Salamanca IBSAL, Paseo San Vicente 58-182, Salamanca 37007, Spain
[3] Red Invest Cronicidad Atenc Primaria & Promoc Salu, Barcelona 08007, Spain
[4] Univ Salamanca, Dept Estadist, Calle Alfonso X el Sabio S-N, Salamanca 37007, Spain
[5] Baleares Hlth Serv IbSalut, Primary Care Res Unit Mallorca, Carrer Escola Grad 3, Palma De Mallorca 07002, Spain
[6] Balear Isl Hlth Res Inst IdISBa, Carrer Escola Grad 3, Palma De Mallorca 07002, Spain
[7] Univ Salamanca, Dept Psicol Basica Psicobiol & Metodol Ciencias Co, Campus Ciudad Jardin, Salamanca 37005, Spain
[8] Univ Salamanca, Dept Med, Calle Alfonso X el Sabio S-N, Salamanca 37007, Spain
[9] Univ Salamanca, Dept Ciencias Biomed & Diagnost, Calle Alfonso X el Sabio S-N, Salamanca 37007, Spain