长春市8955例汉族人群骨密度测量结果分析

Analysis of BMD measurement of 8955 in Han nationality in Changchun

目的通过8955例长春市汉族人群骨密度测量,提供本地区骨密度正常参考值及峰值骨量,分析骨质疏松发生的人群规律。方法采用美国Osteometer Medi Tech公司生产的DTX-200型骨密度仪,检测受试者非受力侧前臂尺桡骨中远端三分之一处骨密度（BMD）。将8955例检测结果按不同性别每10岁分为一年龄组统计分析骨密度均值,T评分及骨量丢失百分率。结果长春市区男女BMD峰值分别为0.6244±0.098、0.5050±0.064,其BMD峰值出现在30岁年龄段,50岁以后开始缓慢下降。50～59岁男性OP发生率为6.95%,女性为8.52%;60～69岁男性OP发生率为19.66%,女性为35.44%;70～79岁男性OP发生率为38.39%,女性为60.64%;80岁以上男性OP发生率为58.17%,女性为72.73%。结论不同年龄组及同年龄组两性间比较BMD测定值差异显著（P〈0.01）,50岁以后各年龄段女性OP发生率明显高于男性（P〈0.01）。不同地域、不同民族、不同仪器检测的BMD数据存在差异。

Objective To provide normal reference data of bone mineral density （BMD） and peak bone mass and analyze regularity of pathogenesis of osteoporosis, the BMD of 8955 people in Han nationalities in Changchun were determined. Methods The BMD of the distal one-thlrd of Radius and ulna of non-dominant arm were determined by DTX-200 BMD detector produced by American Osteometer Medi Tech Corporation. 8955 objects were divided into different groups by 10 years according to sex, and mean BMD, T-score percent and bone loss percent were analyzed. Results 1. The peak value of bone mineral density was 0.6244 ± 0.098 in male, 0. 5050± 0. 064 in female, and that was showed in the age group of 30 ~ 39. while the BMD showed a gradual decline after 50 years. 2. The incidenee of OP was 6.60% in male, and 14.74% in female in the age groups of 50- 59, that was 21.62% in male,51.25% in female in 60 - 69, 41.36% in male,74.42% in female in 70 ~ 79,and 52.17% in male,86.11% in female in 80 ~ 89. Conclusion There was significant difference in the BMD of different age groups and different sex in the same age groups P 〈 0.01. The incidence of OP in female is significantly higher than that in female in different age groups P 〈 0.01. The data of BMD determined in different regions, nationalities and by different BMD detector is different.