Sex determination from adult human femur by stepwise discriminant function analysis

Doshi M.A and Bhaskar B.Reddy

Background: Determination of biological sex is one of the most important determinations to be made from human remains and is an essential first step in the development of the biological profile in forensics, anthropology and bioarchaeology. The aim of this study was to determine whether sexing of unknown adult human femur bones can be done by applying values of morphometric parameters and formulae generated by present study on adult human femur bones of known sex and to find out the best parameters for sex determination.

Methods: Various metric measurements were recorded using osteo metric board, measuring tape, non elastic thread, sliding calipers and vernier calipers on adult human femur bones.

Results: Sex was correctly estimated by using stepwise discriminant function analysis, for the femur 95.6 % of males and 94% of females, with a total accuracy of 95 %.

Conclusions: Present study exhibited better classification accuracy for multiple variables than those of single variables. In the femur, the most discriminating variables in stepwise analysis are the Vertical diameter of head and Circumference of mid shaft.

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