北京深圳西藏三地人群骨折风险因子对骨密度的影响

How the fracture risk factors affect the bone mineral density at Beijing,Shenzhen and Tibet

目的研究北京、深圳和西藏三地人群骨折风险因子对骨密度的影响。方法使用桡骨、尺骨远段的pDEXA对男性1465例，女性931例进行测试，并填写相关骨折风险因子信息（年龄、性别、身高、体重和体重指数（kg／m^2），进行SPSS统计分析。结果北京、深圳、西藏三地男女人群骨密度按照年龄分布基本一致，即地域差异对于中国人骨密度并不显著。按体重指数计算骨密度测量结果分布有一定差异，其中男性骨密度曲线分布一致性非常好，三地到达峰值骨量的男性人群之间，身高、体重和BMI基本没有显著差异（P〉0．05）。女性则有一定差异。峰值骨量出现的年龄基本在34～35岁左右，三地之间没有明显差异（P〉0．05）。结论中国人群很少得到骨折风险因子方面的量化数据和研究，应进一步加强这方面的研究。

Objective To research how the fracture risk factors affect the bone mineral density at Beijing, Shenzhen and Tibet. Methods To measure 1465 male and 931 female cases and to register their fracture risk factors, which included ages, gender, height, weight and Body Mass Index. Then, SPSS was used to calculate the data. Results According to ages, male and female people have same bone mineral density distribution curves in Beijing, Shenzhen and Tibet. That means area is not a significant fracture risk factor. According to Body Mass Index, male people have same bone mineral density distribution curves, too（ P 〉 0.05）. But female people have different curves. The peak bone mass of Chinese happened at 34-35 years old. There is not significant difference among them（ P 〉 0.05）. Conclusions In China, there is seldom information about the fracture risk factors. It should go on researching more and more.