Abstract
A cross-sectional, population-based study of 238 randomly selected females and 224 males with German ethnic background (aged 20–80 years) was carried out to establish lumbar spine bone mineral density (BMD) values, using dual X-ray absorptiometry (DXA), for a German population. Comparison was made to the reference range provided by the manufacturer of the DXA equipment. No sex difference in peak spine BMD was found in our study (1.091±0.114 g/cm2 for males versus 1.070±0.113 g/cm2 for females, n.s.). Different patterns of bone loss could be detected in both sexes. In premenopausal women there was no significant correlation between age and BMD (y = 1.044 + 0.00047x, r=0.03, P=0.73) whereas reduction of female BMD at the spine was demonstrated in postmenopausal women (y = 1.189−0.0041x, r=-0.28, P=0.01), underscoring the important role of the menopause for later manifestation of spinal osteoporosis in women. In contrast, in males we found no significant change of BMD with aging (y = 1.071−0.0007x, r=-0.08, P=0.25). Employing commonly used exclusion criteria, BMD values of the study subjects were found mostly within the normal range of BMD. The major finding of our study was good concordance between female data of our study population and the reference data provided by the manufacturer. Clinically significant discrepancies between our data and the Hologic reference range for males could be detected. Our data on males (30–39 years of age) were up to 7% lower than those provided by the manufacturer, probably due to differences in sampling procedures.
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Lehmann, R., Wapniarz, M., Randerath, O. et al. Dual-energy X-ray absorptiometry at the lumbar spine in German men and women: A cross-sectional study. Calcif Tissue Int 56, 350–354 (1995). https://doi.org/10.1007/BF00301600
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DOI: https://doi.org/10.1007/BF00301600