The GRADE system [31–33] explicitly describes how to rate the quality of each study, as well as how to synthesize the evidence and grade the strength of a recommendation. Using this system, we used GRADEpro software to develop an evidence profile for intervention studies where treatment outcomes could be summarized in this fashion. With GRADEpro, we synthesized and classified the overall quality of evidence for each intervention based on the quality of all of the studies, taking into account risk of bias, inconsistency, indirectness, imprecision, publication bias, dose-response, and effect size [32]. Although we examined each outcome independently, when the rating of the evidence was the same, we collapsed the treatment outcomes in the GRADEpro tables for the sake of efficiency. We also used the AGREE II tool as well as the Guideline Implementability for Decision Excellence Model (GUIDE-M) to inform guideline development and this report [38, 39].
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