DXA-generated Z-scores and T-scores may differ substantially and significantly in young adults.

@article{Carey2007DXAgeneratedZA,
  title={DXA-generated Z-scores and T-scores may differ substantially and significantly in young adults.},
  author={John Joseph Carey and Miriam Frances Delaney and Thomas E. Love and Bradford J. Richmond and Barbara A. Cromer and Paul D E Miller and Martha Manilla-McIntosh and Steven A. Lewis and Charles Thomas and Angelo A. Licata},
  journal={Journal of clinical densitometry : the official journal of the International Society for Clinical Densitometry},
  year={2007},
  volume={10 4},
  pages={351-8}
}
Central dual-energy X-ray absorptiometry (DXA) is the gold standard for non-invasive measurement of bone mineral density (BMD). Using this value and subject demographics, DXA software calculates T-scores and Z-scores. Professional society guidelines for the management of osteoporosis are based on T-scores and Z-scores, rather than on the actual BMD value. Although one expects T-scores and Z-scores to be very similar in young men and women for any given BMD measurement, little literature exists… CONTINUE READING

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