title: Calculation of number needed to treat.
authors.forename: Samy
authors.initials: S
authors.lastname: Suissa
mesh_terms: D003627:Data Interpretation, Statistical; D005500:Follow-Up Studies; D006801:Humans; D006973:Hypertension / Q000188:drug therapy; D015994:Incidence; D053208:Kaplan-Meier Estimate; D016032:Randomized Controlled Trials as Topic / Q000379:methods; D018401:Sample Size; D020521:Stroke / Q000453:epidemiology