Data pulled out from P.Re.Val.E. (Regional Program Evaluation of Outcomes of health interventions) maintained by the Department of Epidemiology of the Regional Health Service Lazio (DEP) and containing information about the care provided by all regional health facilities. The work conducted with P.Re.Val.E. is an integral part of National Evaluation Program of Outcome (PNE), run by AgeNaS on behalf of Health Department, identified as a tool for the evaluation of the outcomes of the care of the National Health System. More informations at : http://95.110.213.190/prevale2014