Discriminant Function Analysis for Sex Assessment in Pelvic Girdle Bones: Sample from the Contemporary Mexican Population
Article first published online: 25 JAN 2011
© 2011 American Academy of Forensic Sciences
Journal of Forensic Sciences
Volume 56, Issue 2, pages 297–301, March 2011
How to Cite
Gómez-Valdés, J. A., Ramírez, G. T., Molgado, S. B., Sain-Leu, P. H., Caballero, J. L. C. and Sánchez-Mejorada, G. (2011), Discriminant Function Analysis for Sex Assessment in Pelvic Girdle Bones: Sample from the Contemporary Mexican Population. Journal of Forensic Sciences, 56: 297–301. doi: 10.1111/j.1556-4029.2010.01663.x
- Issue published online: 22 FEB 2011
- Article first published online: 25 JAN 2011
- Received 8 July 2009; and in revised form 3 Mar. 2010; accepted 6 Mar. 2010.
- forensic science;
- forensic osteology;
- discriminant function analysis;
- sex assessment;
- Mexican population;
Abstract: Sex assessment of skeletal remains plays an important role in forensic anthropology. The pelvic bones are the most studied part of the postcranial skeleton for the assessment of sex. It is evident that a population-specific approach improves rates of accuracy within the group. The present study proposes a discriminant function method for the sex assessment of skeletal remains from a contemporary Mexican population. A total of 146 adult human pelvic bones (61 females and 85 males) from the skeletal series pertaining to the National Autonomous University of Mexico were evaluated. Twenty-four direct metrical parameters of coxal and sacral bones were measured and subsequently, sides and sex differences were evaluated, applying a stepwise discriminant function analysis. Coxal and sacra functions achieved accuracies of 99% and 87%, respectively. These analyses follow a population-specific approach; nevertheless, we consider that our results are applicable to any other Hispanic samples for purposes of forensic human identification.