Mundorff Amy Z, Bartelink Eric J, Murad Turhon A
Department of Anthropology, The University of Tennessee, 250 South Stadium Hall, Knoxville, TN, 37996-0720; Department of Anthropology, California State University, 400 West 1st Street, Chico, CA, 95929-0400.
J Forensic Sci. 2014 Jul;59(4):891-7. doi: 10.1111/1556-4029.12449. Epub 2014 Feb 19.
Previous research has demonstrated significant sexual dimorphism in friction ridge skin characteristics. This study uses a novel method for measuring sexual dimorphism in finger ridge breadths to evaluate its utility as a sex estimation method from an unknown fingerprint. Beginning and ending in a valley, the width of ten parallel ridges with no obstructions or minutia was measured in a sample of 250 males and females (N = 500). The results demonstrate statistically significant differences in ridge breadth between males and females (p < 0.001), with classification accuracy for each digit varying from 83.2% to 89.3%. Classification accuracy for the pooled finger samples was 83.9% for the right hand and 86.2% for the left hand, which is applicable for cases where the digit number cannot be determined. Weight, stature, and to a lesser degree body mass index also significantly correlate with ridge breadth and account for the degree of overlap between males and females.
先前的研究已经证明，在摩擦嵴皮肤特征方面存在显著的性别差异。本研究采用一种测量指嵴宽度性别差异的新方法，以评估其作为从未知指纹进行性别估计方法的效用。在250名男性和女性（N = 500）的样本中，测量从一个谷底开始并在另一个谷底结束的、没有障碍物或细节特征的十条平行嵴的宽度。结果表明，男性和女性之间的嵴宽度存在统计学上的显著差异（p < 0.001），每个手指的分类准确率从83.2%到89.3%不等。右手合并手指样本的分类准确率为83.9%，左手为86.2%，这适用于无法确定手指编号的情况。体重、身高以及在较小程度上的体重指数也与嵴宽度显著相关，并解释了男性和女性之间的重叠程度。
