title: The (mis)use of overlap of confidence intervals to assess effect modification.
authors.affiliation: Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, PO Box 85500, 3508 GA Utrecht, The Netherlands. m.j.knol@umcutrecht.nl
authors.forename: Mirjam J
authors.initials: MJ
authors.lastname: Knol
authors.forename: Wiebe R
authors.initials: WR
authors.lastname: Pestman
authors.forename: Diederick E
authors.initials: DE
authors.lastname: Grobbee
mesh_terms: D016001:Confidence Intervals; D003627:Data Interpretation, Statistical; D015987:Effect Modifier, Epidemiologic