An evaluation of the three-component pubic symphyseal human age estimation method: a CT-based exploration in an Indian population

Journal article


Warrier, V., Shedge, R., Garg, P.K., Dixit, S.G., Krishan, K. and Kanchan, T. 2023. An evaluation of the three-component pubic symphyseal human age estimation method: a CT-based exploration in an Indian population. The Science of Nature. 110 (21), pp. 1-15. https://doi.org/10.1007/s00114-023-01851-y
AuthorsWarrier, V., Shedge, R., Garg, P.K., Dixit, S.G., Krishan, K. and Kanchan, T.
Abstract

Age estimation constitutes an important facet of human identification within forensic, bioarchaeological, repatriation, and humanitarian contexts. Within the human skeletal framework, the pubic symphysis comprises one of the more commonly utilized structures for age estimation. The present investigation was aimed at establishing the applicability of the McKern-Stewart pubic symphyseal age estimation method in males and females of an Indian population, an aspect previously unreported. Three hundred and eighty clinical CT scans of the pubic symphysis were collected and scored in accordance with the McKern-Stewart method. An overall accuracy of 68.90% was obtained on applying the method to males, demonstrating a limited applicability of the method in its primal form. Subsequently, Bayesian analysis was undertaken to enable accurate age estimation from individual components in both sexes. Bayesian parameters obtained with females suggest that McKern-Stewart's components fail to accommodate for age-related changes within the female pubic bone. Improved accuracy percentages and reduced inaccuracy values were obtained with Bayesian analysis in males. With females, the error computations were high. Weighted summary age models were utilized for multivariate age estimation, and furnished inaccuracy values of 11.51 years (males) and 17.92 years (females). Error computations obtained with descriptive analysis, Bayesian analysis, and principal component analysis demonstrate the limited applicability of McKern-Stewart's components in generating accurate age profiles for Indian males and females. The onset and progression of age-related changes within the male and female pubic bone may be of interest to biological anthropologists and anatomists involved in exploring the underlying basis for aging.

KeywordsBayesian inference; Computed tomography; Human age estimation; McKern-Stewart; Principal Component Analysis; Pubic symphyseal morphology
Year2023
JournalThe Science of Nature
Journal citation110 (21), pp. 1-15
PublisherSpringer
ISSN1432-1904
Digital Object Identifier (DOI)https://doi.org/10.1007/s00114-023-01851-y
Web address (URL)https://link.springer.com/article/10.1007/s00114-023-01851-y
https://pubmed.ncbi.nlm.nih.gov/37199770/
Accepted author manuscript
File Access Level
Open
Publisher's version
File Access Level
Open
Output statusPublished
Publication dates
Online18 May 2023
Publication process dates
Accepted10 May 2023
Deposited11 Jul 2024
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https://repository.derby.ac.uk/item/q55w2/an-evaluation-of-the-three-component-pubic-symphyseal-human-age-estimation-method-a-ct-based-exploration-in-an-indian-population

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