Populations comparison and assessment of Gaya-Sancho regression formulas for sex estimation based on sacrum

Introduction

The effectiveness that some methodologies offer is analysed when they are applied to estimate sex in individuals from a geographical environment other than the population from which the formulas were obtained.

Objective

To assess the method of Gaya-Sancho applying their regression formulas and comparing modern skeletal collections of the same chronological context.

Materials and methods

By means of some metrical variables of the sacrum, the degree of sexual dimorphism of a modern series from Granada is compared with another modern series from Granada and a modern series from Canada.

Results

Despite the similarities between the series, the results range from 56.25% to 59.52% in males and from 77.27% to 91.67% in females from Órgiva and from 83.78% to 89.19% in males and from 64.29% to 69.23% in females from Grant.

Discussion

These results showed that the difference in series could be influenced by many factors as some authors stated despite the similar geographical context.

Conclusions

These results suggest that the regression formulas can be an acceptable method to estimate sex and the existence of differences between the analysed series.