Binary Logistic Regression Analysis of Foramen Magnum Dimensions for Sex Determination.
Binary Logistic Regression Analysis of Foramen Magnum Dimensions for Sex Determination.
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DOI：
10.1155/2015/459428
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发表时间：
2015-01-01
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影响因子：
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通讯作者：
Avadhani, Ramakrishna
中科院分区：
文献类型：
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作者：
Kamath, Venkatesh Gokuldas;Asif, Muhammed;Avadhani, Ramakrishna
目的.枕骨大孔的结构完整性，通常是保存在火灾事故和爆炸，由于其抵抗性质和隐蔽的解剖位置，本研究试图确定其性别鉴定的潜力。方法.本文测量了72例（男41例，女31例）南印度人颅骨枕骨大孔的矢状径、横径和面积。使用Student t检验、线性相关、直方图、Q-Q图和二元逻辑回归（BLR）进行分析，以获得性别决定模型。采用受试者工作特征曲线（ROC）分析BLR的预测概率。结果. BLR分析和ROC曲线显示，矢状径、横径和颅孔面积对颅骨性别判别的预测率分别为69.6%、66.4%和70.3%。结论建立了枕骨大孔大小的两性异形。然而，由于男性和女性的值有相当大的重叠，单独依赖于孔的测量是不明智的。然而，考虑到在本研究和之前的研究中其尺寸的高性别预测百分比，孔测量可用于补充其他可用的性别鉴定证据，以便精确地确定骨骼的性别。
Purpose. The structural integrity of foramen magnum is usually preserved in fire accidents and explosions due to its resistant nature and secluded anatomical position and this study attempts to determine its sexing potential. Methods. The sagittal and transverse diameters and area of foramen magnum of seventy-two skulls (41 male and 31 female) from south Indian population were measured. The analysis was done using Student's t-test, linear correlation, histogram, Q-Q plot, and Binary Logistic Regression (BLR) to obtain a model for sex determination. The predicted probabilities of BLR were analysed using Receiver Operating Characteristic (ROC) curve. Result. BLR analysis and ROC curve revealed that the predictability of the dimensions in sexing the crania was 69.6% for sagittal diameter, 66.4% for transverse diameter, and 70.3% for area of foramen. Conclusion. The sexual dimorphism of foramen magnum dimensions is established. However, due to considerable overlapping of male and female values, it is unwise to singularly rely on the foramen measurements. However, considering the high sex predictability percentage of its dimensions in the present study and the studies preceding it, the foramen measurements can be used to supplement other sexing evidence available so as to precisely ascertain the sex of the skeleton.