A Geometric Morphometric Approach to Sex Determination of the Human Adult Os Coxa |
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| Authors: | Joan A Bytheway PhD Ann H Ross PhD |
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| Institution: | 1. College of Criminal Justice, Forensic Science, Sam Houston State University, Huntsville, TX 77341‐2525;2. Department of Sociology and Anthropology, North Carolina State University, Raleigh, NC 27695‐8107. |
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| Abstract: | Abstract: Sex determination of the human skeleton is best assessed from the os coxa. The present study explored the possibility of using three‐dimensional landmark coordinate data collected from various landmarks located over the entire bone to determine whether there were significant sex differences local to the landmarks. Thirty‐six landmarks were digitized on 200 African American and European American male and female adult human os coxae. MANCOVA results show that sex and size have a significant effect on shape for both European Americans (Sex, F = 17.50, d.f. = 36, 63, p > F = 0.0001; Size, F = 2.56, d.f. = 36, 63, p > F = 0.0022) and African Americans (Sex, F = 21.18, d.f. = 36, 63, p > F = 0.0001; Size, F = 2.59, d.f. = 36, 63, p > F = 0.0005). The discriminant analysis shows that sexing accuracy for European Americans is 98% for both males and females, 98% for African American females, and 100% for African American males. |
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| Keywords: | forensic science forensic anthropology sex determination os coxa geometric morphometrics discriminant function analysis |
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