中文摘要：

目的 探讨辽宁汉族指长比的特点. 方法 在知情同意情况下随机整群选取20～22岁健康辽宁汉族728人（男270,女458）,排除手指有畸形、损伤和有内分泌及代谢病者,其母孕期间均未服用激素类药物,直接测量法测量其指长, SPSS14.0软件包对数据进行分析.结果 辽宁汉族指长均呈现：3D＞4D＞2D＞5D,女性2D〉男性（P〈0.001）、男性4D〉女性（P〈0.001） 辽宁汉族指长比具有3D：5D＞4D：5D＞2D：5D＞3D：4D＞2D：4D＞2D：3D趋势 辽宁汉族指长比存在性别、侧别差异,以2D：4D较为明显 辽宁汉族指长比大于宁夏汉族、回族指长比,与其他国家群体之间也存在差异. 结论辽宁汉族指长比具有性别、侧别差异性,其中以2D：4D最为显著 指长比可能还存在民族、地区及人种的差异.

英文摘要：

Objective To study Liaoning Han nationality＇s characteristics of digit ratio. Methods With informed consent, we randomly chose 728 （270 males and 458 females） healthy Liaoning Han people between 20 and 22 years old, excluding patients of endocrine and metabolic disease and the people whose fingers were malformed and injured. Their mothers had never taken any hormones during duration of pregnancy. We used direct measurement to measure digit length, SPSS 14. 0 package to statistical analysis. Results Liaoning Han people＇s digit length present 3D 〉 4D 〉 2D 〉 5D,female＇s 2D 〉 male＇s （ P 〈 0. 001 ） , male＇s 4D 〉 female＇s （ P 〈 0. 001 ） ; Digit ratio of Liaoning Han people possessed the tendency of 3D：5D 〉4D：5D 〉 2D：5D 〉 3D：4D 〉 2D：4D 〉 2D：3D; Digit ratio of Liaoning Han nationality had sexual and bilateral differences, especially in 2D：4D; Digit ratio of Liaoning Han people was exceed the digit ratio of Ningxia Han and Hui population in China. There were differences of digit ration between Liaoning Han people between other countries and regions. Conclusion Digit ratio of Liaoning Han people had sexual and bilateral differences, especially in 2D：4D; digit ratio should have differences in nations, areas and races.