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ABSTRACT: Background
Clinical guidelines should be updated to maintain their validity. Our aim was to estimate the length of time before recommendations become outdated.Methods
We used a retrospective cohort design and included recommendations from clinical guidelines developed in the Spanish National Health System clinical guideline program since 2008. We performed a descriptive analysis of references, recommendations and resources used, and a survival analysis of recommendations using the Kaplan-Meier method.Results
We included 113 recommendations from 4 clinical guidelines with a median of 4 years since the most recent search (range 3.9-4.4 yr). We retrieved 39 136 references (range 3343-14 787) using an exhaustive literature search, 668 of which were related to the recomm
SUBMITTER: Martinez Garcia L
PROVIDER: S-EPMC4216254 | biostudies-literature | 2014 Nov
REPOSITORIES: biostudies-literature