title: Number needed to treat: enigmatic results for exacerbations in COPD.
authors.affiliation: Centre for Clinical Epidemiology, Lady Davis Institute, Jewish General Hospital, Montreal, QC, Canada Dept of Epidemiology and Biostatistics, McGill University, Montreal, QC, Canada samy.suissa@mcgill.ca.
authors.forename: Samy
authors.initials: S
authors.lastname: Suissa
mesh_terms: D000280:Administration, Inhalation; D026683:Advisory Committees; D018450:Disease Progression; D004359:Drug Therapy, Combination; D005260:Female; D000068298:Fluticasone / Q000008:administration & dosage*; D006801:Humans; D015994:Incidence; D008297:Male; D011322:Primary Prevention / Q000379:methods; D011379:Prognosis; D029424:Pulmonary Disease, Chronic Obstructive / Q000188:drug therapy* / Q000453:epidemiology* / Q000517:prevention & control; D016032:Randomized Controlled Trials as Topic; D018570:Risk Assessment; D000068299:Salmeterol Xinafoate / Q000008:administration & dosage*; D000069447:Tiotropium Bromide / Q000008:administration & dosage*; D016896:Treatment Outcome
chemical_list: D000068299:Salmeterol Xinafoate; D000068298:Fluticasone; D000069447:Tiotropium Bromide