I2from18%to46%.However,I2valueslessthan50%areusuallyconsideredasexhibitingmoderateheteroge-neity,andafixed-effectsmodelcouldbecons...
Meta-analysisofresultsfromstudiesofvariablerisksofbiascanresultinfalsepositiveornegativeconclusions.Takingtheseremarksintoconsider...
