Leila Cusack|Chris Del Mar|Iain Chalmers|Elizabeth Gibson|Tammy Hoffmann
Educational interventions to improve people’s understanding of key concepts in assessing the effects of health interventions: a systematic review
Bond University|Bond University|Bond University|Bond University
health information readily accessible variable quality general knowledge assess whether claims health interventions trustworthy common peoples health decisions illinformed unnecessarily costly even unsafe review aims identify evaluate studies educational interventions designed improve peoples understanding key concepts evaluating claims effects health interventions searched multiple electronic databases sources grey literature inclusion criteria included study types included comparison participants except health professionals health professional students educational interventions aimed improving peoples understanding one key concepts considered necessary assessing health intervention claims knowledge andor understanding concepts skills relevant evaluating health information primary outcome measures secondary outcomes included behaviour confidence attitude satisfaction educational interventions two authors independently screened search results assessed study eligibility risk bias extracted data results summarised using descriptive synthesis among 24 eligible studies 14 randomised trials 10 used study designs heterogeneity across study participants settings educational intervention type content delivery risk bias high least one domain randomised studies studies measured outcomes immediately educational intervention measuring later comparisons measures knowledge skills better among received educational interventions among controls differences statistically significant effects secondary outcomes inconsistent educational interventions improve peoples understanding key concepts evaluating health intervention claims improve peoples knowledge skills least short term effects confidence attitude behaviour uncertain many studies moderate greater risk bias improvements study quality consistency outcome measures measures longerterm effects needed improve confidence estimates effects educational interventions improve peoples understanding key concepts evaluating health intervention claims prospero crd42016033103