Title

Determining Sex of the Posterior Ilium from the Robert J. Terry and William M. Bass Collections

Authors

Authors

L. Novak; J. J. Schultz;M. McIntyre

Comments

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Abbreviated Journal Title

J. Forensic Sci.

Keywords

forensic science; forensic anthropology; sexual dimorphism; pelvis; logistic regression; classification correctness; GREATER SCIATIC NOTCH; PELVIS; Medicine, Legal

Abstract

Morphological traits of the posterior ilium are commonly used for sex determination in bioarcheological and forensic skeletal analysis. This study was designed to compare the classification correctness of standard scoring systems and measurements of the posterior ilium, including using logistic regression, to develop new formulae to predict sex. Metric measurements and morphological scores for the preauricular sulcus (PS), the elevation of the auricular surface, and the greater sciatic notch width were recorded for 97 males and 101 females of both European and African ancestry from the William M. Bass and Terry Collections. Correct classification of sex was high using individual traits such as the greater sciatic notch score (88.4%), the presence or absence of a PS (78.8%), and the scoring of a present PS as 1, 2, or 3 (100%). Furthermore, an equation combining multiple traits of the posterior ilium had a high classification of 94.9%.

Journal Title

Journal of Forensic Sciences

Volume

57

Issue/Number

5

Publication Date

1-1-2012

Document Type

Article

Language

English

First Page

1155

Last Page

1160

WOS Identifier

WOS:000308391500001

ISSN

0022-1198

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