大学生示指骨X线测量与身高的回归分析

目的 :对示指骨各指节的长度及宽度进行X线测量 ,其身高的多变量主成分回归方程。方法 :随机选择健康汉族大学生 2 0 0人 (男 10 0人 ,女 10 0人 ) ,进行双手后前位X线拍片 ,分别测量示指骨各指节骨长与中点宽 ,应用stata 6.0软件进行统计学分析。结果 :男、女大学生左右示指各节长度宽度的侧别差异无显著性意义 ;性别差异均有显著性意义。示指各指节参数间存在多重共线性关系 ,对其进行回归分析 ,可建立检测指标单变量、多变量与身高的回归方程。结论 :多元回归方程中 ,利用主成分回归建立的方程更为科学 ;在单变量回归方程中 ,示指各指节长度参数建立的方程更为合理 ;对推断身高简单实用 ,具有较高参考价值。

X-ray Measurement and Regression Analysis of Index Finger and Atature

Objective:To measure the length and width of index finger, providing regression equation for stature estimation.Methods:A total of 200 healthy college students (male 100,female 100) were included ,their hands were taken X-ray films on posteroanterior position, and measured the length and mid-width of index finger. We used principle component regression to construct multiple regression equation, and used simple regression to product linear equation. All the date were calculated by stata 6.0 software.Results:It was found that there were differences between right and left hand, the sexual differences were significant.There was multiple co-linear relation between parameter of index bone. Using regression analysis, we obtained several regression equations between stature and parameters of index finger.Conclusions:Multiple regression equation constructed by principle component regression was more scientific, simple regression equations constructed by using length of each phalange index finger variable are reasonable. The equations are simple, practical and useful for estimation stature in forensic medicine and anthropology.