Development and testing of a medline search filter for identifying patient and public involvement in health research

Research involving the public as partners often proves difficult to locate due to the variations in terms used to describe public involvement, and inability of medical databases to index this concept effectively.To design a search filter to identify literature where patient and public involvement (PPI) was used in health research.A reference standard of 172 PPI papers was formed. The references were divided into a development set and a test set....