The Turin Longitudinal Study was created during the 1980s in order to monitor metropolitan health variations. Through a longitudinal follow up it includes social and health individual data for about one million residents in Turin at each population census since 1971 (1971, 1981, 1991, 2001 and 2011). Socioeconomic and demographic conditions come from censuses and local population registry, and health conditions are available from the local health authority and health information systems (causes of death, hospital admissions, outpatient care, drug prescriptions, and cancer, CHD, stroke and diabetes registries).