Review: calcium supplementation, with or without vitamin D, prevents osteoporotic fractures in people ⩾50 years of age
B M Tang
Dr B M Tang, University of Sydney, Penrith, New South Wales, Australia; firstname.lastname@example.org
In patients ⩾50 years of age, does calcium supplementation, with or without vitamin D, prevent osteoporotic fractures?
Medline, EMBASE/Excerpta Medica, Current Contents, CINAHL, Database of Abstracts of Reviews of Effects, Cochrane Central Register of Controlled Trials, and Cochrane Database of Systematic Reviews (all to January 2007); clinical trials repositories; resource websites; conference abstracts; review articles; and bibliographies of primary studies.
Study selection and assessment:
published or unpublished randomized controlled trials (RCTs) in any language that compared the effects of calcium, with or without vitamin D, with placebo on fractures or bone-mineral density (BMD) in patients ⩾50 years of age. Exclusion criteria were use of dietary calcium as …