兰州地区794例健康人骨密度测定结果分析

Analysis on the bone density value of 794 healthy people lived in Lanzhou area

目的 :探讨兰州地区正常人BMD(骨密度 )的参考值。方法 :采用双能X线骨密度测定仪测定兰州地区 794名健康人骨矿含量 ,按年龄段计算骨总丢失率及年均丢失率并与北京地区相应数值进行对比。结果 :兰州地区女性骨量峰值期在 30～ 39岁 ,5 0岁进入快速丢失期 ,骨总丢失率为 34 % ;男性骨量峰值期在 40～ 49岁 ,5 0岁以后呈缓慢下降 ,骨总丢失率为 4.9%。男女性全身BMD高于腰椎。结论 :获得兰州地区的BMD正常参考值。本地区健康人腰椎BMD与北京地区的相应数值差异显著。

Objective:To probe into the normal reference value of human bone density(BMD) in Lanzhou area.Methods:The bone-mineral contents of 794 healthy people lived in Lanzhou area were determined by a double energy X-ray bone densimeter.Their general bone lost rate and average per year bone lost rate were calculated according to their age segments.The results were compared with those obtained from Beijing area.Results:In Lanzhou area,the peak bone quantity period of females located at 30～39 years old of age,and decreased rapidly after 50 years old.Their general bone lost rate was 34%.AS to male people, their peak bone quantity period located at 40 49 years old of age,and then decreased slowly.Their general bone lost rate was 4.9%.In all males and females.their general BMDs were higher than those of lumbar vertebra.Conclusion:The normal reference value of BMC in Lanzhou area is obtained.There is significant difference existed between BMDs of lumbar vertebra in healthy people lived in Lanzhou or Beijing area respectively.