Data Sources Available from AHRQ Largest collection of longitudinal hospital care data in the United States. National and State databases on inpatient, emergency department and ambulatory surgery visits as well as information from reports and tools facilitate research on a broad range of health policy issues. The Agency for Healthcare Research and Quality (AHRQ) offers robust data sources that may interest you if you're a researcher, clinician, purchaser, policymaker, or consumer. The following page is intended to assist you in understanding these sources and to get you to the data you seek.If You Need Data OnUse This Data SourceAccessibility of careMedical Expenditure Panel SurveyMEPSnet Query ToolsAmbulatory surgeriesHealthcare Cost and Utilization ProjectHCUPnetEmergency department visitsHealthcare Cost and Utilization Project National DataState DataHCUPnetHCUP Statistical BriefHealth care disparitiesNational Healthcare Disparities ReportHealth care qualityNational Healthcare Quality ReportState SnapshotsHealth care spendingMedical Expenditure Panel SurveyMEPSnet Query ToolsHealth care useMedical Expenditure Panel SurveyMEPSnet Query ToolsHealth information data element definitions, values and information modelsUnited States Health Information KnowledgebaseHospitalizationsHealthcare Cost and Utilization ProjectHCUPnet By payerHealthcare Cost and Utilization ProjectHCUPnet By StatesHealthcare Cost and Utilization ProjectHCUPnet For childrenHealthcare Cost and Utilization ProjectHCUPnetState-specific health care quality information (strengths, weaknesses, and opportunities for improvement)State SnapshotsStudy data extracted for systematic reviewsSystematic Review Data Repository™ Current as of July 2012 Internet Citation: Data Sources Available from AHRQ. July 2012. Agency for Healthcare Research and Quality, Rockville, MD. http://www.ahrq.gov/research/data/dataresources.html