摘 要: | TheCochraneCollaborationLogoillustratesasystematicreviewofdatafromsevenrandomisedcontrolledtrials (RCTs) ,comparingonehealthcaretreatmentwithaplacebo.Eachhorizontallinerepresentstheresultsofonetrial(theshortedtheline,themorecertaintheresult) ;andthediamondrepresentstheircombinedresults.Theverticallineindicatesthepositionaroundwhichthehorizontallineswouldclusterifthetwotreatmentcomparedinthetrailshadsimilareffects;ifahorizontallinetouchestheverticalline,itmeansthatthatparticulartrialfoundnocl…
|