Sex assessment using measurements of the first lumbar vertebra

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 a...

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Bibliographic Details
Published in:Forensic science international Vol. 219; no. 1-3; pp. 285.e1 - 285.e5
Main Authors: Zheng, Wen Xu, Cheng, Fu Bo, Cheng, Kai Liang, Tian, Yong, Lai, Ying, Zhang, Wen Song, Zheng, Ya Juan, Li, You Qiong
Format: Journal Article
Language:English
Published: Ireland Elsevier Ireland Ltd 10.06.2012
Elsevier Sequoia S.A
Elsevier Limited
Subjects:
Accuracy
Adult
Adults
Anthropometry
Asian Continental Ancestry Group
Assessments
China
Chinese population
Discriminant Analysis
Female
Forensic Anthropology
Forensic Anthropology Population Data
Forensic science
Forensic sciences
Gender
Humans
Imaging, Three-Dimensional
Legal system
Lumbar vertebra
Lumbar Vertebrae - anatomy & histology
Lumbar Vertebrae - diagnostic imaging
Male
Mathematical analysis
Medicolegal aspects
Morality
Pathology
Polymorphism
Sex
Sex assessment
Sex Determination by Skeleton - methods
Three dimensional
Tomography, Spiral Computed
Vertebrates
Width
China
Chinese population
Forensic anthropology
Forensic Anthropology Population Data
Sex assessment
Lumbar vertebra
ISSN:0379-0738, 1872-6283, 1872-6283
Online Access:Get full text
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Summary: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.
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ISSN:0379-0738
1872-6283
1872-6283
DOI:10.1016/j.forsciint.2011.11.022