Greater Sciatic Notch in Sex Determination by Metric Method

Abstract

The purposes of this research were to study and compare the anatomical characteristic of Greater Sciatic Notch in male and female and to determine sex by the measurement of Greater Sciatic Notch. A total of 100 pairs (200 samples) of adult Greater Sciatic Notch, 50 pairs from male and 50 pairs from female, were examined under three variables: Maximum Width of the Greater Sciatic Notch, Maximum Depth of the Greater Sciatic Notch, and Posterior Segment of the Greater Sciatic Notch by digital vernier caliper. The measured values were calculated for two values of index: Index II and Index II. From the research results, it was found that Maximum Depth of the Greater Sciatic Notch, Posterior Segment of the Greater Sciatic Notch, and mean values of Index I and Index II in males were significantly higher than in females (P-Value = 0.000), except the Maximum Width. The Greater Sciatic Notch Maximum Width of females were significantly greater than males (P-Value = 0.000). Moreover, the equation for sex determination was obtained from univariate and multivariate measurements. The observed variable with the

highest mean gender classification accuracy (96%) and the least number of measurement variables (2 variables) was MW/PS. The proposed gender classification equation was demonstrated as D = -8.554+0.301MW-. 0.183PS (Male = D < Sectioning Point (0) < D = Female; cut value = 0). Consider the result from the calculation, if D value is less than 0, the sex can be predicted to be male. In contrast, the sex will be predicted to be female when the D values is greater than 0.