Appraisal of: Kaunelis D. When everything is too much: development of a CADTH narrow economic search filter. Poster presented at: 2011 CADTH Symposium. 2011 Apr 3-5; Vancouver, BC.

Short description: 
This poster reported an investigation of the performance of filters to find a gold standard set of economic evaluations with a focus on maximizing the precision of the filter. The best performing filter was further adapted and then tested for performance on the same gold standard and using a series of queries. The ‘CADTH narrow search filter’ found approximately 75% of the gold standard records with better precision than other filters, which tended to maximize sensitivity. The author suggested that this filter is useful for rapid reviews, to identify critiques of models, and to carry out high level reviews of an intervention or reviews of an indication. The filter mostly comprised title and abstract terms and should therefore be usable across a range of databases. It is available for Ovid and for PubMed interfaces.
Limitations stated by the author(s): 
No limitations were identified.
Limitations stated by the reviewer(s): 
The filter was developed and tested in the same gold standard and so will tend to over-perform. The performance of the filter should be tested in other gold standards to see whether performance from the test set is maintained. The sensitivity and precision of the search filters was not provided.
Study Type: 
Single study
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