儿童青少年双能X线骨密度检测的身高矫正值的建立

发布时间：2018-03-31 19:41

本文选题：儿童青少年　切入点：骨密度　出处：《重庆医科大学》2017年硕士论文

【摘要】：目的:通过对正常身高和矮小儿童青少年骨密度和身高的测定,了解身高对儿童青少年骨密度的影响;用身高的Z分对儿童青少年不同身高的骨密度进行矫正,从而消除身高对骨密度的影响;建立重庆地区不同身高儿童青少年骨密度的身高矫正值的参考数据,为临床更加准确的评价儿童青少年骨密度值提供依据。方法:选取重庆市6所中小学和2013年8月-2016年7月来我院内分泌科门诊就诊的5-18岁矮小儿童,共9977例,其中男童4832人,女童5145人。测量所有儿童的身高,利用DXA测量每个儿童BMC、骨面积、BMD,计算出每个儿童的BMD age Z、BMD height age Z、BMD haz Z值。数据统计分析采用SPSS17.0软件。结果:1不同身高男女童的骨密度Z值与身高呈正相关;2在不同身高男女童中未经身高矫正的骨密度Z值均有统计学差异;3通过骨密度的身高矫正后每个年龄段的骨密度Z值变化度明显缩小。结论:1身高对骨密度有影响,身高越矮的儿童骨密度Z值越低,因此,需对骨密度进行身高矫正;2通过骨密度的身高矫正后每个年龄段的儿童骨密度Z值变化幅度明显缩小,消除了身高对骨密度的影响;3建立重庆地区不同身高男女儿童青少年骨密度的身高矫正值的参考数据。
[Abstract]:Objective: to study the effect of height on bone mineral density (BMD) of children and adolescents by measuring the bone mineral density (BMD) and height of normal and short children and adolescents, and to correct the bone mineral density (BMD) of different height of children and adolescents with Z score of height. In order to eliminate the influence of height on bone mineral density, establish the reference data of height correction value of different height children and adolescents in Chongqing area, Methods: a total of 9977 children aged 5 to 18 years old, including 4832 boys, were selected from 6 primary and secondary schools in Chongqing and from August 2013 to July 2016. 5145 girls. Measure the height of all children, DXA was used to measure the BMC and bone area of each child, and the value of BMD age height height age haz Z was calculated for each child. The data were analyzed by SPSS17.0 software. Results the Z value of bone density of boys and girls of different height at 1: 1 was positively correlated with their height. There were significant differences in Z value of bone mineral density (BMD) between boys and girls of the same height. [3] the changes of BMD Z value in each age group were significantly reduced after height correction of BMD. Conclusion: the height of 1: 1 has an effect on BMD. The lower the height of children, the lower the Z value of bone mineral density. Therefore, the change of Z value of bone mineral density in children of each age should be reduced obviously after the height correction of BMD was carried out. The effect of height on bone mineral density (BMD) was eliminated. (3) reference data of height correction of BMD of boys, girls and adolescents with different height in Chongqing area were established.
【学位授予单位】：重庆医科大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：R816.92

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