摘要
目的探究下肢长骨与个体身高的关系,建立当代四川汉族女性身高推算的数学模型,为法医学个体识别提供依据。方法收集171例四川汉族女性个体,应用大平板多功能数字化摄影系统采集全下肢正位X线片,测量下肢长骨相关指标,同时测量被研究者的身高,对下肢长骨各指标与身高的相关性进行线性回归分析,建立身高推算的数学模型。同时,运用该数学模型,对另外29例四川汉族女性的身高进行推算,以检验上述身高推算模型的准确性。结果股骨最大长(x_1)与身高的相关性最高;建立身高推算线性回归方程13个(P<0.05),复相关系数(R)为0.821～0.897,标准估计误差(standard error of estimate,SEE)为2.994～3.812cm。经回代检验,方程y=41.604+1.205x_1+1.318x_6+2.444x_(12)+1.852x_(13)-2.388x_(14)的平均绝对误差最小(2.485岁),±2SEE准确率最高(92.9%);方程y=48.783+2.568x_1的±1SEE准确率最高(60.7%)。结论利用下肢长骨进行身高推算准确性较高。
Objective To establish a mathematical model of stature estimation for Sichuan Han females on the basis of the relationship between lower limbs and individual height, thus to provide evidence for forensic identification. Methods Samples were collected from 171 Sichuan Han females. Large flat panel multi-function digital photography system was used to take the full-body X-ray films of the lower limbs. Indexes of long bones and stature of the subjects were measured, respectively. A linear regression analysis was carried out on the correlation between them, and a mathematical model of the stature calculation was established. Then the mathematical model was used to calculate the stature of another 29 Sichuan Han females to test its accuracy. Results The maximum length of femur (x1) had the highest correlation with stature. A total of 13 linear regression equations were established (P<0.05), with the correlation coefficient (R) 0.821-0.897 and the standard error of the estimation (SEE) 2.994- 3.812 cm. The backtesting showed that the equation y=41.604+1.205 x1+1.318 x6+2.444 x12+1.852 x13-2.388 x14 had the smallest mean absolute deviation(2.485 years old)and the highest accuracy of ±2SEE (92.9%), and that the equation y=48.783+2.568 x1 had the highest accuracy of ±1SEE (60.7%). Conclusion The stature estimation is high by using the long bones of the lower limbs has high accuracy.
作者
崔井会
骆莹贞
常云峰
彭钊
邓莉萍
张奎
邓振华
CUI Jing-hui;LUO Ying-zhen;CHANG Yun-feng;PENG Zhao;DENG Li-ping;ZHANG Kui;DENG Zhen-hua(West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu 610041, China;Department of Forensic Medicine, School of Basic Medical Science Central South University, Changsha 410013, China;Department of Forensic Medicine, School of Basic Medical Science Central South University, Changsha 410013, China;3. West China Hospital, Sichuan University, Chengdu 610041, China)
出处
《法医学杂志》
CAS
CSCD
2019年第1期11-16,共6页
Journal of Forensic Medicine
基金
上海市法医学重点实验室(司法鉴定科学研究院)开放基金资助项目(KF1607)
四川省科技计划资助项目(2017JY0239)
湖南省自然基金面上资助项目(2018JJ2558)
关键词
法医人类学
X线
身高
下肢骨
四川
女性
forensic anthropology
X-rays
body height
bones of lower extremity
Sichuan
female
