A new multivariate method for determining sex of immature human remains using the maxillary first molar

American Journal of Physical Anthropology
Christopher ArisElizabeth Craig-Atkins

Abstract

This study investigated the use of sexually dimorphic metrics of the first permanent maxillary molar (M1 ) to determine sex in adult and immature individuals within and between populations. Ten M1 dimensions were measured in 91 adults (19-55 years) and 58 immatures (5-18 years) from two English populations, one of documented sex (Spitalfields crypt) and another of morphologically-assigned sex (Black Gate). Preliminary statistical analysis was undertaken to explore bilateral differences and variation by age and sex, followed by multivariate analyses to predict sex from dental metrics. Both cross-validated linear discriminant analysis and binary logistic regression predicted biological sex consistent with known sex in 94.6% of adults and 90.9% of immatures. When functions extracted from the Spitalfields data were used to assign sex to Black Gate adults, consistency with morphological sex varied from 83.3% to 57.7%. A new function developed on Black Gate resulted in only a 4.8% increase in maximum accuracy but reduced bias. The immature cohort comprised 19 (52.8%) males and 17 (47.2%) females. This study demonstrates substantial sexual dimorphism in a single tooth which is commonly preserved in archaeological and forensic contexts...Continue Reading

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Citations

Feb 23, 2020·American Journal of Physical Anthropology·Christopher ArisChris Deter
Sep 2, 2020·American Journal of Physical Anthropology·Joan VicianoLuigi Capasso

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