Estimativa do Sexo e Idade por Meio de Mensurações Faciais em Crânios Secos de Adultos

. The research aim is to assess the sexual dimorphism and estimate age through facial measurements from the zygomatic region, thus providing subside for investigations in Legal Medicine. A sample of 241 dry skulls was screened and 226 met the inclusion criteria, the 15 excluded skulls were damaged. From that sample, 89 were female and 137 were male, all older than 20 years of age and belonging to the Tiradentes University’s Human Anatomy Laboratory. A precision digital caliper, calibrated in millimeters, was used. The measurements took place using the following points: Zygomatic Orbital, Zygomatic Maxillary and Zygomatic Temporal on both sides of the face, and from these three points, two triangular areas, right and left were stablished. The analysis of variance exhibited a larger mean within all variables for males, that difference was statistically significant after t-test (p <0.05). The Discriminant Analysis exhibited a correctness index of 74.16% on female gender and 69.12% for the male gender, presenting an accuracy rate of 71.64%. After logistic regression, a concordance index of 75.4% was reached. The data suggests that the age prediction model was not significant in our study. The results can allow the design of statistical methods for sex prediction in future observations.