What is bone mineral density (BMD)?

Updated: Sep 26, 2019
  • Author: Monique Bethel, MD; Chief Editor: Herbert S Diamond, MD  more...
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Answer

Bone mineral density (BMD) in a patient is related to peak bone mass and, subsequently, bone loss. Whereas the T-score is the patient’s bone density compared with the BMD of control subjects who are at their peak BMD, the Z-score reflects a bone density compared with that of patients matched for age and sex. [5, 6, 7, 8]


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