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August 20, 2003

External Hip Protectors and Risk of Hip FractureExternal Hip Protectors and Risk of Hip Fracture

Author Affiliations

Letters Section Editor: Stephen J. Lurie, MD, PhD, Senior Editor.

JAMA. 2003;290(7):883. doi:10.1001/jama.290.7.883-a

To the Editor: We have 2 concerns about the study by Ms van Schoor and colleagues.1 First, many participants were lost to follow-up, potentially creating differences between the intervention and control groups that might have biased the results. Second, many participants assigned to wear the hip protectors stopped doing so during the trial. This dilution of the intervention group with nonusers decreases the power of the study to detect any possible benefit of hip protectors that were actually worn.

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