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Background: Overviews of systematic reviews compile data from multiple systematic reviews (SRs) and are a new method of evidence synthesis. Objectives: To describe the methodological approaches in overviews of interventions. Design: Descriptive study. Methods: We searched 4 databases from 2000 to...
Applying the risk of bias tool in a systematic review of combination long-acting beta-agonists and inhaled corticosteroids for persistent asthma.Download
Background The Risk of Bias (RoB) tool is used to assess internal validity of randomized controlled trials (RCTs). Our objectives were to: 1) evaluate inter-rater agreement of the RoB tool; 2) determine the time to access supplemental study information; 3) compare the RoB tool with the Jadad...
From the trenches: a cross-sectional study applying the GRADE tool in systematic reviews of healthcare interventions.Download
Background GRADE was developed to address shortcomings of tools to rate the quality of a body of evidence. While much has been published about GRADE, there are few empirical and systematic evaluations. Objective To assess GRADE for systematic reviews (SRs) in terms of inter-rater agreement and...
Objective: To quantify bias related to specific methodological characteristics in child-relevant randomized controlled trials (RCTs). Design: Meta-epidemiological study. Data Sources: We identified systematic reviews containing a meta-analysis with 10–40 RCTs that were relevant to child health in...
Background: Methamphetamine (MA) is a potent stimulant that is readily available. Its effects are similar to cocaine, but the drug has a profile associated with increased acute and chronic toxicities. The objective of this systematic review was to identify and synthesize literature on risk...