Milne N
Department of Anatomy and Human Biology, University of Western Australia, Nedlands.
J Anat. 1990 Oct;172:221-6.
Eight measurements of the hipbone were taken from 62 human skeletons of unknown sex. The subjective judgements of eight experienced anatomists were used to obtain subsets of male, female and unknown sex specimens. Principal components analysis was employed as a group-finding procedure; this confirmed the subjective determinations. Discriminant function analysis, using the subjectively determined 'known' specimens, was conducted. This yielded scores which sexed the unknown subset in agreement with the groups found by principal component analysis. Further discriminant functions were calculated to exclude two hip bone measures which were shown to be poor indicators of sex. The specimens with discriminant function scores closest to the cut-off point were seen, in the graph of the first two principal components, to lie in a cluster intermediate between the main gender groups and, upon re-examination, these were found to be rather ambiguous specimens with small overall measures and a narrow sciatic notch and pubis. The results of this study indicate that mid-pubic width is a more useful sexing character than pubic length.
从62具性别未知的人类骨骼上获取了八处髋骨测量数据。八位经验丰富的解剖学家通过主观判断获得了男性、女性及性别未知的样本子集。采用主成分分析作为分组方法，这证实了主观判断结果。利用主观确定的“已知”样本进行判别函数分析，得出的分数对未知子集进行了性别判定，结果与主成分分析得出的分组一致。还计算了进一步的判别函数，以排除两项被证明对性别判断效果不佳的髋骨测量指标。在前两个主成分的图表中可以看到，判别函数分数最接近临界点的样本位于主要性别组之间的一个聚类中，重新检查后发现这些样本相当模糊，整体尺寸较小，坐骨切迹和耻骨较窄。本研究结果表明，耻骨中部宽度比耻骨长度是更有用的性别鉴定特征。
