Sources of variability in bone mineral density measurements: implications for study design and analysis of bone loss.

Measurement of bone mineral density (BMD) is a useful tool for monitoring efficacy in osteoporosis therapy. However, the ability to detect true change for a subject as well as for a group of subjects is dependent on the precision of the measurement. In this paper, short-term and long-term reliability of bone mass measurements were examined at the spine and… CONTINUE READING