Librarians, informationists, researchers, health policymakers, and health care professionals retrieve reports of health technology assessments (HTAs) to review the evidence on medical, socioeconomic, and ethical implications of health care and health care investments [ 1 ]. These assessments are a useful type of gray literature that include cost-benefit analyses of health interventions, syntheses of intervention research findings, and discussion of the economic implications of health care and medical technology [ 2 ]. The HTA Database Canadian Repository is a new, valuable tool that aggregates these assessments and makes them findable via a convenient search interface.

This international repository includes records for in-progress and published reports of HTAs, reviews, guidelines, protocols, journals, and articles. Launched in January of 2015, the database includes records beginning in 2003. The HTA Database is funded by the United Kingdom's National Institute for Health Research (NIHR) and administered by the University of York Centre for Reviews and Dissemination. The Canadian repository aggregates HTA records from Ontario, Quebec, Alberta, and pan-Canadian agencies (CADTH) in addition to records from the International Network of Agencies for Health Technology Assessment (INAHTA). The database includes reports from 93 INAHTA and other international repositories [ 3 ]. All records and documents are translated into English, French, and/or Spanish, representing about 20 source languages. As of May 2015, the Canadian repository contains over 14,000 unique records; approximately 2,400 are Canadian.