title: Interpreting effects when comparing two interventions.
authors.affiliation: a Department of Biostatistics , UNC Gillings School of Global Public Health , Chapel Hill , NC , USA.
authors.forename: Shrikant I
authors.initials: SI
authors.lastname: Bangdiwala
mesh_terms: D016001:Confidence Intervals; D003627:Data Interpretation, Statistical; D006801:Humans; D015397:Program Evaluation; D017751:Safety Management / Q000379:methods; D014754:Violence / Q000517:prevention & control