Data were misrepresented

doi:10.1136/bmj.39493.484086.1F

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Wendy S Biggs, associate editor, Journal Watch for Women’s Health

¹Midland Family Medicine Residency, 4005 Orchard Drive, Midland, MI 48670, USA

wendy.biggs{at}midmichigan.org

The “What this study adds” box accompanying the article by Bolland et al misrepresents the study data.1 The first bullet says that healthy older women randomised to calcium supplementation showed increased rates of myocardial infarction. Although the data show that women reported more events, analysis of New Zealand hospital records erased any significant difference in myocardial infarction rates between the calcium and placebo groups. …