AHRQ Evidence-Based Research (Reports and Fact Sheets)The Agency for Healthcare Research and Quality (AHRQ), through its EPCs, sponsors the development of various reports to assist public- and private-sector organizations in their efforts to improve the quality of health care in the United States. These reports provide comprehensive, science-based information on common, costly medical conditions and new health care technologies and strategies. The EPCs review all relevant scientific literature on a wide spectrum of clinical and health services topics. EPCs also produce technical reports on methodological topics and other types of evidence synthesis-related reports.