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

    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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