Nanka O, Sedý J, Jarolím L
Institute of Anatomy, Charles University in Prague, First Faculty of Medicine, Prague, Czech Republic.
Prague Med Rep. 2007;108(2):167-76.
This study describes a distinct groove on the caudal and ventral surfaces of the pubic bone termed the "sulcus nervi dorsalis penis/clitoridis" and assesses its usefulness as a character for sex determination of isolated pubic bones. Analysis of 168 male and 118 female pubic bones showed that the presence of a sulcus was a non-random event. A sulcus was present in 72% of male pubic bones and 83% of female pubic bones examined (Czech population). Seven characters (including three of the sulcus) were measured in a sample of an 86 isolated pelvises grouped according to the gender. A step-wise discriminant function analysis was performed on this dataset to assess whether a combination of these characters could be used for gender identification of isolated pubic bones. A bivariate plot using Mahalanobis distances showed distinct differences in male and female pubic bones. The width of the sulcus and the craniocaudal length of the pubic symphysis significantly described most of the variations observed between male and female pelvises. A post hoc analysis of the reliability of the technique showed that stepwise discriminant function correctly identified 83% of male and 86% of female known-sex pelves. Thus discriminant function analysis of the sulcus and pubic bones can reliably be used to determine sex in human osseal remnants.
本研究描述了耻骨尾侧和腹侧表面上一条独特的沟，称为“阴茎/阴蒂背神经沟”，并评估其作为孤立耻骨性别鉴定特征的效用。对168块男性耻骨和118块女性耻骨的分析表明，沟的存在并非随机事件。在所检查的男性耻骨中，72%存在沟；在女性耻骨中，83%存在沟（捷克人群）。在按性别分组的86个孤立骨盆样本中，测量了七个特征（包括沟的三个特征）。对该数据集进行逐步判别函数分析，以评估这些特征的组合是否可用于孤立耻骨的性别鉴定。使用马氏距离的双变量图显示，男性和女性耻骨存在明显差异。沟的宽度和耻骨联合的头尾长度显著描述了观察到的男性和女性骨盆之间的大部分差异。对该技术可靠性的事后分析表明，逐步判别函数正确识别了83%的已知性别的男性骨盆和86%的已知性别的女性骨盆。因此，对沟和耻骨进行判别函数分析可可靠地用于确定人类骨遗骸的性别。
