Sex assessment using measurements of the first lumbar vertebra

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• 作者：Wen Xu Zheng^a ; ^b ; ¹ ; Fu Bo Cheng^b ; ^c ; ¹ ; Kai Liang Cheng^d ; Yong Tian^b ; Ying Lai^d ; Wen Song Zhang^a ; Ya Juan Zheng^a ; ^{zhengyajuan124@yahoo.com.cn} ; You Qiong Li^b ; ^{youqiong@jlu.edu.cn}
• 关键词：Forensic anthropology ; Sex assessment ; Lumbar vertebra ; Chinese population ; Forensic Anthropology Population Data
• 刊名：Forensic Science International
• 出版年：2012
• 期刊代码：104_03790738
• 类别：med
• 出版时间：10 June, 2012
• 卷：219
• 期：1-3
• 页码：285.e1-285.e5
• 文件大小：427 K

摘要

Sex determination is a vital part of the medico-legal system but can be difficult in cases where the integrity of the body has been compromised. The purpose of this study was to develop a technique for sex assessment from measurements of the first lumber vertebrate. Twenty-nine linear measurements and five ratios were collected from 113 Chinese adult males and 97 Chinese adult females using digital three-dimensional anthropometry methods. By using discriminant analysis, we found that 23 linear measurements and two ratios identified sexual dimorphism (P < 0.01), with predictive accuracy ranging from 57.1%to 86.6%. Using a stepwise method of discriminant function analysis, we found three dimensions predicted sex with 88.6%accuracy: (a) upper end-plate width (EPWu), (b) left pedicle height (PHl), and (c) middle end-plate depth (EPDm). This study shows that a single first lumber vertebra can be used for this purpose, and that the discriminant equation will help forensic determination of sex in the Chinese population.