Berrizbeitia E L
Laboratorio de Antropologia Física, Museo de Ciencias Naturales, Caracas, Venezuela.
J Forensic Sci. 1989 Sep;34(5):1206-13.
Analysis of a sample of 1108 radii corresponding to 567 black and white North Americans in the Terry Collection at the Smithsonian Institution demonstrates that the diameter of the radial head is an accurate sex discriminator for human remains. A simple "radial-head method" of sex determination consists of measuring the maximum and minimum diameters of the head and comparing such measurements with the test cutoff points. The subject is female when the maximum radial head diameter (either left or right) is less than or equal to 21 mm, and male when the maximum diameter (either left or right) is greater than or equal to 24 mm. The same decisions apply to the minimum diameters of 20 mm or less and 23 mm or more, respectively. When the maximum diameter is 23 mm or the minimum is 22 mm, the subject is more likely male; when the maximum diameter is 22 mm or the minimum is 21 mm, the subject is more likely female. The sample frequency of any one of these latter diameters is never more than 16%. Cross-validation of the method with a sample of 50 pairs of radii of the Terry Collection, different from the original specimens, resulted in 92% sexing accuracy when using the left radius singly, 94% accuracy when using the right radius singly, and 96% accuracy when using both radii jointly.
对史密森学会特里藏品中567名北美黑人和白人对应的1108根桡骨样本进行分析表明，桡骨头直径是鉴定人类遗骸性别的准确指标。一种简单的性别鉴定“桡骨头法”包括测量桡骨头的最大和最小直径，并将这些测量值与测试临界值进行比较。当桡骨头最大直径（左或右）小于或等于21毫米时，受试者为女性；当最大直径（左或右）大于或等于24毫米时，受试者为男性。对于最小直径分别为20毫米及以下和23毫米及以上的情况，适用相同的判定。当最大直径为23毫米或最小直径为22毫米时，受试者更可能为男性；当最大直径为22毫米或最小直径为21毫米时，受试者更可能为女性。这些后一种直径中任何一种的样本频率都不超过16%。使用与原始标本不同的特里藏品中50对桡骨样本对该方法进行交叉验证，单独使用左桡骨时性别鉴定准确率为92%，单独使用右桡骨时准确率为94%，同时使用两根桡骨时准确率为96%。
