NCJ Number
248189
Journal
Journal of Forensic Identification Volume: 64 Issue: 5 Dated: September/October 2014 Pages: 449-458
Date Published
October 2014
Length
10 pages
Annotation
This study used cephalofacial measurements in order to determine sex in the Indo-Martitian population.
Abstract
Summary statistics and significant values for seven cephalofacial indexes were calculated. The cephalic index (CI), zygomaticfrontal index (ZFI), and zygomaticomandibular (ZMI) index were higher on average and less disperse for males than for females/ The 5th and 95th percentiles of the ZFI were higher for females than for males. This indicates that 95 percent of the females had this index above 72.38, and 5 percent of the females had this index above 92.69; whereas, the corresponding percentages of the males with AFI above these values were only 80 percent and 3.5 percent. Thus, even though the female ZFI had a 50th percentile value of 80.00, which is lower than that of 81.15 for the male ZFI, one can expect to find a male with AFI less than 71.57 and a female with more than 92.68. Moreover, there was no significant difference between males and females, as shown by the p value of 0.258. ZFI is thus not a good index for sex determination; however, ZM has a borderline significance in determining sex, and CI had significantly different mean values for males and females and may be a valid factor for sex determination. The preliminary analyses found significant differences between males and females regarding the cephalic index. (CI) and nasal index (NI). Thus, CI and NI have a strong chance of being valid factors for sex identification. The model fit to these data confirmed that CI, NI, and FI contributed significantly to the determination of sex. The remaining indexes were not significant and may be ignored for gender determination. 2 tables and 16 references