Search filters (also refered to as Search Hedges) are pre-tested search strategies that limit results to higher quality evidence. Search filters are often validated and are available from several sources including:
This database presents an assortment of search filters developed and maintained by CADTH’s Research Information Services Filters Working Group. These filters have been extensively tested by the Research Information Services team and are routinely used in CADTH projects. Some filters have been validated against a gold standard set of articles, while others have been pragmatically validated.
The InterTASC Information Specialists' Sub-Group Search Filter Resource is a collaborative venture to identify, assess and test search filters designed to retrieve research by study design or focus. The Search Filters Resource aims to provide easy access to published and unpublished search filters.
Filters for CINAHL, Medline, and Embase in the areas of: Systematic Reviews, Randomised Controlled Trials, Observational Studies, Diagnostic Studies, Economic Studies, and Patient issues
The clinical queries section of PubMed is based on validated search filters which are explained in this table. To search PubMed Clinical Queries click below.
