title: Summary of meta-analyses of therapies for postmenopausal osteoporosis and the relationship between bone density and fractures.
abstract: We review the methodologic quality of the individual randomized trials and summarize the impact of different treatments on the risk of fractures and bone density. We present an estimate of the expected impact of anti-osteoporosis interventions on fracture incidence in prevention and treatment populations using numbers needed to treat. We also examine the relationship between changes in bone density and the relative risk reduction for vertebral and nonvertebral fractures using regression analyses drawn from the results of the systematic reviews. We also outline other important facets of the decision-making process regarding osteoporosis therapy, including attitudes toward uncertainty, circumstances, and patients' and societal preferences.
authors.affiliation: Department of Medicine, Department of Clinical Epidemiology and Biostatistics, McMaster University, 1200 Main Street West, Hamilton, Ontario, Canada, L8N 3Z5. guyatt@mcmaster.ca
authors.forename: Gordon H
authors.initials: GH
authors.lastname: Guyatt
authors.forename: Ann
authors.initials: A
authors.lastname: Cranney
authors.forename: Lauren
authors.initials: L
authors.lastname: Griffith
authors.forename: Stephen
authors.initials: S
authors.lastname: Walter
authors.forename: Nicole
authors.initials: N
authors.lastname: Krolicki
authors.forename: Murray
authors.initials: M
authors.lastname: Favus
authors.forename: Clifford
authors.initials: C
authors.lastname: Rosen
mesh_terms: D015519:Bone Density; D050723:Fractures, Bone / Q000453:epidemiology*; D006801:Humans; D015663:Osteoporosis, Postmenopausal / Q000175:diagnosis / Q000453:epidemiology* / Q000628:therapy*; D012307:Risk Factors