Osteometric sex estimation from the os coxa in a Thai population

© 2016 Elsevier Ireland Ltd The coxal bone shows a very high degree of sexual dimorphism both morphologically and metrically. However, despite a number of recent studies on sex estimation from the skeleton in Thailand, no osteometric methods o f sexing the Thai os coxa have been proposed. Therefore,...

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Main Authors: Mahakkanukrauh P., Ruengdit S., Tun S., Case D., Sinthubua A.
Format: Journal
Published: 2017
Online Access:https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85008471521&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/40811
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Institution: Chiang Mai University
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spelling th-cmuir.6653943832-408112017-09-28T04:11:31Z Osteometric sex estimation from the os coxa in a Thai population Mahakkanukrauh P. Ruengdit S. Tun S. Case D. Sinthubua A. © 2016 Elsevier Ireland Ltd The coxal bone shows a very high degree of sexual dimorphism both morphologically and metrically. However, despite a number of recent studies on sex estimation from the skeleton in Thailand, no osteometric methods o f sexing the Thai os coxa have been proposed. Therefore, the aim of this study was to develop a standard sex estimation method for a Thai population by examining the efficacy of six coxal bone measurements and eight indices obtained from 200 Thai skeletons. Independent samples t-tests revealed statistically significant differences between males and females for all but one of the measurements. The equation with the highest correct allocation accuracy was based on four measurements (pubis length, ischium length, total height and acetabulum diameter) and had a predicted and cross-validated accuracy of 96.9% and a tested accuracy of 97.5% on a holdout sample of 40 individuals. The single variable equation with the highest correct allocation accuracy of 94.4% and a tested accuracy of 97.5% was for the ischiopubic index, which is calculated from ischium length and pubis length. Percentage accuracies in predicting sex from these equations were higher than many previous studies, suggesting high levels of sexual dimorphism in the Thai os coxa. 2017-09-28T04:11:31Z 2017-09-28T04:11:31Z Journal 03790738 2-s2.0-85008471521 10.1016/j.forsciint.2016.11.043 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85008471521&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/40811
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
description © 2016 Elsevier Ireland Ltd The coxal bone shows a very high degree of sexual dimorphism both morphologically and metrically. However, despite a number of recent studies on sex estimation from the skeleton in Thailand, no osteometric methods o f sexing the Thai os coxa have been proposed. Therefore, the aim of this study was to develop a standard sex estimation method for a Thai population by examining the efficacy of six coxal bone measurements and eight indices obtained from 200 Thai skeletons. Independent samples t-tests revealed statistically significant differences between males and females for all but one of the measurements. The equation with the highest correct allocation accuracy was based on four measurements (pubis length, ischium length, total height and acetabulum diameter) and had a predicted and cross-validated accuracy of 96.9% and a tested accuracy of 97.5% on a holdout sample of 40 individuals. The single variable equation with the highest correct allocation accuracy of 94.4% and a tested accuracy of 97.5% was for the ischiopubic index, which is calculated from ischium length and pubis length. Percentage accuracies in predicting sex from these equations were higher than many previous studies, suggesting high levels of sexual dimorphism in the Thai os coxa.
format Journal
author Mahakkanukrauh P.
Ruengdit S.
Tun S.
Case D.
Sinthubua A.
spellingShingle Mahakkanukrauh P.
Ruengdit S.
Tun S.
Case D.
Sinthubua A.
Osteometric sex estimation from the os coxa in a Thai population
author_facet Mahakkanukrauh P.
Ruengdit S.
Tun S.
Case D.
Sinthubua A.
author_sort Mahakkanukrauh P.
title Osteometric sex estimation from the os coxa in a Thai population
title_short Osteometric sex estimation from the os coxa in a Thai population
title_full Osteometric sex estimation from the os coxa in a Thai population
title_fullStr Osteometric sex estimation from the os coxa in a Thai population
title_full_unstemmed Osteometric sex estimation from the os coxa in a Thai population
title_sort osteometric sex estimation from the os coxa in a thai population
publishDate 2017
url https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85008471521&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/40811
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