![]() The filter's recall was then validated in both the Filter Validation Set and the Cochrane Validation Set. The filter was developed by creating combinations of terms and recording their performance in retrieving items from the Filter Development Set. Candidate search terms were identified via word frequency analysis. ![]() A further validation set (the Cochrane Validation Set) was formed using studies included in Cochrane heart failure systematic reviews. The study set of 876 relevant articles from four heart failure clinical practice guidelines was divided into three datasets: a Term Identification Set, a Filter Development Set, and a Filter Validation Set. MethodsĪ Clinical Advisory Group was established to advise study investigators. This study developed and validated a search filter of high clinical utility for the retrieval of heart failure articles in OvidSP Medline. Clinicians wanting timely access to heart failure evidence to provide optimal patient care can face many challenges in locating this evidence. Heart failure is a highly debilitating syndrome with a poor prognosis primarily affecting the elderly.
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