Nhoem, Sophorn, and Domett, Kate (2024) Sex estimation by discriminant function analysis of long bones in prehistoric Southeast Asian populations. International Journal of Osteoarcheology. e3365. (In Press)

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Abstract

Biological sex estimation is an integral part of reconstructing the biological profile of an individual in forensic anthropological and bioarchaeological contexts. Formulating population specific discriminant function equations for metric variables is vital for reconstructing biological sex of fragmentary skeletal remains. This study aimed to develop multivariable and univariable sectioning point sex estimation equations from long bones of prehistoric Thailand and Cambodia people dated from 4700 to 1450 BP. A total of 481 individuals (236 females and 245 males) with 997 long bone measurements were analyzed. Discriminant function analysis was used to analyze sexually dimorphic measurements from long bones of humeri (177 females and 183 males), femora (169 females and 178 males), and tibiae (139 females and 151 males). Stepwise and direct multivariable functions offered the highest accuracies of 97.3% for humeri, 97% for femora, and 96.7% for tibiae. Univariable functions indicated that the recommended measurements for use in sex estimations with high cross-validation accuracies are the humeral epicondylar breadth (89.1%), femoral maximum head diameter (87.1%), and tibial midshaft circumference (88.3%). These equations are applicable for use in sex estimation for the specific prehistoric Southeast Asian populations to improve our understanding of the prehistoric demography. Further evaluation and validation of the equations are required to test whether these equations can also be applied to estimate biological sex of contemporary Southeast Asian populations.

Item ID:	84017
Item Type:	Article (Research - C1)
ISSN:	1099-1212
Copyright Information:	© 2024 John Wiley & Sons Ltd.
Date Deposited:	12 Nov 2024 00:02
FoR Codes:	43 HISTORY, HERITAGE AND ARCHAEOLOGY > 4301 Archaeology > 430102 Archaeology of Asia, Africa and the Americas @ 30% 44 HUMAN SOCIETY > 4401 Anthropology > 440103 Biological (physical) anthropology @ 70%
SEO Codes:	13 CULTURE AND SOCIETY > 1307 Understanding past societies > 130702 Understanding Asia’s past @ 50% 28 EXPANDING KNOWLEDGE > 2801 Expanding knowledge > 280123 Expanding knowledge in human society @ 50%
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