Frutos Luis Ríos
Unit of Biological Anthropology, Faculty of Biological Sciences, Universidad Autónoma de Madrid, Cantoblanco, Madrid 28049, Spain.
Am J Phys Anthropol. 2003 Oct;122(2):123-6. doi: 10.1002/ajpa.10227.
One hundred and fourteen femora (75 male and 39 female) derived from a contemporary rural Guatemalan population were studied to test the ability of the minimum supero-inferior femoral neck diameter as a sex indicator. With the discriminant functions previously developed from North American modern populations, a maximum of only 36% correctly sexed femora was obtained, with correct percentages as low as 4%. A new discriminant function for the Guatemalan rural population is presented, with a total of 89.5% correctly classified individuals. It is suggested that poor physical growth of the rural Guatemalan population, due to a stressful environment, can explain part of the metric differences observed between the North American and rural Guatemalan populations.
对来自危地马拉当代农村人口的114根股骨（75根男性股骨和39根女性股骨）进行了研究，以测试股骨颈最小上下径作为性别指标的能力。利用先前从北美现代人群中开发出的判别函数，最多只能正确判别36%的股骨性别，最低正确率仅为4%。本文提出了一种针对危地马拉农村人口的新判别函数，其个体分类的总正确率为89.5%。研究表明，危地马拉农村人口因压力环境导致的身体发育不良，可以解释北美和危地马拉农村人口之间观察到的部分度量差异。
