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骨质疏松是一种以骨量减少为特征的常见疾病，其早期重要诊断方法之一是测定骨密度。我们对２２例青年健康组、３６例老年健康组、３０例老年慢阻肺组进行骨密度测定，结果表明老年健康组股骨骨密度，即股骨颈、股骨三角、股骨粗隆骨密度分别为（０．８４８±０．１３４）、（０．６７９±０．１５２）、（０．７７３±０．１２１）；青年健康组分别为（１．００９±０．１４５）、（０．８９８±０．５６４）、（０．８５３±０．１２２），老年健康组股骨密度较青年组低。而老年慢阻肺组分别为（０．７８０±０．１２６）、（０．６００±０．１２６）、（０．６８７±０．１６４），较老年健康组股骨密度也减低。分析其原因除了与增龄引起钙缺乏、激素分泌水平低、活动量减少、免疫力低下有关外，还与缺氧引起各脏器受损，致胃肠道钙吸收障碍有关。
Osteoporosis is a common disease characterized by osteopenia. One of the earliest important diagnostic methods is the determination of bone density. We measured bone mineral density in 22 young healthy group, 36 elderly healthy group and 30 elderly COPD group. The results showed that the femoral BMD of femoral neck, femoral triangle and femoral trochanter were ( 0.848 ± 0.134), (0.679 ± 0.152) and (0.773 ± 0.121) respectively. The young healthy group were (1.009 ± 0.145) and (0.898 ± 0 .564), (0.853 ± 0.122). The femoral densities of the elderly healthy group were lower than those of the young group. (0.780 ± 0.126) and (0.600 ± 0.126) and (0.687 ± 0.164) respectively in the chronic obstructive pulmonary disease group, and the femoral densities in the aged obstructive pulmonary disease group also decreased. Analysis of its causes in addition to age-related cause of calcium deficiency, low levels of hormone secretion, reduced activity, low immunity, but also with hypoxia caused by damage to various organs, caused by gastrointestinal calcium absorption disorders.