广东东莞地区中老年人群腰椎骨密度测定

Bone densitometry of lumbar vertebra of middle-aged and aged population in Dongguan

目的研究广东东莞地区中老年L1-L4各椎体骨密度值及变化规律。方法采用双能X线骨密度仪（DXA）检测438例中老年人L1-L4各椎体的骨密度值（BMD）,按10岁为1个年龄组对数据进行整理和统计分析。结果 L1-L4椎体BMD随年龄增长呈逐渐下降（45岁-组与55岁-组比较、65岁-组与75-85岁组比较,均P〈0.05;55岁-组与65岁-组比较,P〉0.05）,55岁以上女性骨质疏松症患病率均高于男性（P〈0.05）。结论获取了东莞地区中老年人各年龄组腰椎体BMD数据及变化特点,为开展脊柱骨质疏松症研究提供参考数据。

Objective To investigate the value and changes of bone mineral density（BMD） of lumbar vertebrae in middleaged and aged population in Dongguan City. Methods BMD was measured with dual energy X-ray absorptiometry（DXA） at lumbar vertebrae（L1-L4） for 438 middle-aged and aged persons in Dongguan City. The data were analyzed on the basis of 10 years as an age group. Results The BMD of the lumbar vertebral（L1-L4） showed a downward tendency with the increase of age（comparison between the Group of 45-55 years old and the Group of 55-65 years old, and between the Group of 65-75 years old and the Group of 75-85 years old, P〈0.05; comparison between the Group of 55-65 years old and the Group of 65-75 years old, P〉0.05）, and the incidence of osteoporosis（OP） in women more than 55 years old was higher than that in men（P〈0.05）. Conclusion The BMD data and characteristics of the lumbar vertebrae（L1-L4） in middle-aged and aged population in Dongguan were obtained in this study, which provided reference data for the study on spine OP.