Statistical classification methods for estimating sex based on five skull traits: A nonmetric assessment using 3D CT models
Five cranial nonmetric traits for sex estimation for sex estimation are classified by score according to geometry. The population of origin is one of the factors influencing cranial nonmetric traits. Moreover, among the five cranial traits, the robust traits for estimating sex varied across populati...
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| Format: | Article |
| Language: | English |
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Schweizerbart Science Publishers
2023-03-01
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| Series: | Homo |
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| Online Access: | http://dx.doi.org/10.1127/homo/2023/1632 |
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| author | Yun taek Shim Deog-Im Kim Nahyun Aum Seung gyu Choi Young Seok Lee Hyung Nam Koo Yi-Suk Kim |
| author_facet | Yun taek Shim Deog-Im Kim Nahyun Aum Seung gyu Choi Young Seok Lee Hyung Nam Koo Yi-Suk Kim |
| author_sort | Yun taek Shim |
| collection | DOAJ |
| description | Five cranial nonmetric traits for sex estimation for sex estimation are classified by score according to geometry. The population of origin is one of the factors influencing cranial nonmetric traits. Moreover, among the five cranial traits, the robust traits for estimating sex varied across population. The aim of this study is to suggest the most useful method for sex estimation and demonstrate the need of a suitable method for each population. One-hundred thirty-five three-dimensional skull images from 21st century Korean autopsy cadavers were evaluated using the ordinal scoring system of five cranial nonmetric traits as outlined in Buikstra & Ubelaker (1994). All scores of each trait were analyzed by linear discriminant and decision tree analyses for sex estimation. The frequency of each trait was analyzed and compared to populations from other studies. The accuracy for both sexes was 88.1% by discriminant analysis and 90.4% by decision tree. The traits with the highest accuracy were the glabella and mastoid process in both discriminant analysis and decision tree. Sex estimation in modern Korean cadavers using the cranial nonmetric method was shown to be highly accurate by both discriminant analysis and decision tree. When comparing the pattern of frequency scores in this study with those of other populations, the pattern of trait scores for estimating sex was different for each population, even among populations in the same Asian region, which suggests the need for methods suited for specific populations. |
| format | Article |
| id | doaj-art-450d71de01ac4ee88d5bca57e58940b3 |
| institution | Kabale University |
| issn | 1618-1301 |
| language | English |
| publishDate | 2023-03-01 |
| publisher | Schweizerbart Science Publishers |
| record_format | Article |
| series | Homo |
| spelling | doaj-art-450d71de01ac4ee88d5bca57e58940b32025-02-03T10:06:54ZengSchweizerbart Science PublishersHomo1618-13012023-03-0174113714610.1127/homo/2023/1632102751Statistical classification methods for estimating sex based on five skull traits: A nonmetric assessment using 3D CT modelsYun taek ShimDeog-Im KimNahyun AumSeung gyu ChoiYoung Seok LeeHyung Nam KooYi-Suk KimFive cranial nonmetric traits for sex estimation for sex estimation are classified by score according to geometry. The population of origin is one of the factors influencing cranial nonmetric traits. Moreover, among the five cranial traits, the robust traits for estimating sex varied across population. The aim of this study is to suggest the most useful method for sex estimation and demonstrate the need of a suitable method for each population. One-hundred thirty-five three-dimensional skull images from 21st century Korean autopsy cadavers were evaluated using the ordinal scoring system of five cranial nonmetric traits as outlined in Buikstra & Ubelaker (1994). All scores of each trait were analyzed by linear discriminant and decision tree analyses for sex estimation. The frequency of each trait was analyzed and compared to populations from other studies. The accuracy for both sexes was 88.1% by discriminant analysis and 90.4% by decision tree. The traits with the highest accuracy were the glabella and mastoid process in both discriminant analysis and decision tree. Sex estimation in modern Korean cadavers using the cranial nonmetric method was shown to be highly accurate by both discriminant analysis and decision tree. When comparing the pattern of frequency scores in this study with those of other populations, the pattern of trait scores for estimating sex was different for each population, even among populations in the same Asian region, which suggests the need for methods suited for specific populations.http://dx.doi.org/10.1127/homo/2023/1632cranial nonmetric traitsdecision treediscriminant analysisthree-dimensional imagesex estimationpopulation variation |
| spellingShingle | Yun taek Shim Deog-Im Kim Nahyun Aum Seung gyu Choi Young Seok Lee Hyung Nam Koo Yi-Suk Kim Statistical classification methods for estimating sex based on five skull traits: A nonmetric assessment using 3D CT models Homo cranial nonmetric traits decision tree discriminant analysis three-dimensional image sex estimation population variation |
| title | Statistical classification methods for estimating sex based on five skull traits: A nonmetric assessment using 3D CT models |
| title_full | Statistical classification methods for estimating sex based on five skull traits: A nonmetric assessment using 3D CT models |
| title_fullStr | Statistical classification methods for estimating sex based on five skull traits: A nonmetric assessment using 3D CT models |
| title_full_unstemmed | Statistical classification methods for estimating sex based on five skull traits: A nonmetric assessment using 3D CT models |
| title_short | Statistical classification methods for estimating sex based on five skull traits: A nonmetric assessment using 3D CT models |
| title_sort | statistical classification methods for estimating sex based on five skull traits a nonmetric assessment using 3d ct models |
| topic | cranial nonmetric traits decision tree discriminant analysis three-dimensional image sex estimation population variation |
| url | http://dx.doi.org/10.1127/homo/2023/1632 |
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