宁夏590例回族青年大学生指长比特点分析

The Analysis of the Digit Ratio Traits in Ningxia Hui Youth Undergraduates

目的 探讨宁夏回族青年大学生指长比的分布特点,比较分析中国不同民族2D∶4D指长比的差异.方法 在知情同意原则下,选取宁夏地区18～22岁回族大学生590例(男性234例,女性356例),采用人类体质测量方法测量其左右手第2～5手指的长度,计算各手指长比.结果 宁夏回族青年大学生指长比均值呈现3D∶5D＞4D∶5D＞2D∶5D＞3D∶4D＞2D∶4D＞2D∶3D的趋势;女性双手各指长比均值均高于男性(P＜0.05);同一性别中,左手2D∶3D、2D∶4D、2D∶5D指长比均值均大于右手(P＜0.05);不同性别间,左手2D∶4D的构成分布差异有统计学意义(P＜0.01).结论 宁夏回族青年大学生指长比存在性别及左右手差异,且2D∶3D、2D∶4D、2D∶5D差异显著;国内不同民族2D∶4D指长比均值各不相同.

Objective To investigate the traits of the digit ratio in Ningxia hui youth undergraduates,and to analyze the difference of digit ratio in 2nd and 4th in difference nations in China.Methods Under informed consents measurements of all fingers(except thumbs)were made by physical measurements in all samples from Ningxia hui college students(male =234,female = 356)which were 18 to 22 years old,then worked out all the digit ratios.The software of SPSS 17.0 was used to deal with the dates.Results The order of all the digit ratios was 3D∶5D>4D∶5D>2D∶5D>3D∶4D> 2D∶4D> 2D∶3D.Each digit ratio in female was higher than in male on both hands(P<0.05).There were significant differences in 2D∶3D,2D∶4D and 2D∶5D between left hand and right hand(P<0.05),and left were higher than right.The distribution of 2D∶4D percentage in left hand has a significant difference between males and females(P<0.01).Conclusion Sexual difference and both hands difference were found on the digit ratio of ningxia hui youth undergraduates,and the difference in 2D∶3D,2D∶4D and 2D:5D were obvious;the mean values of 2D∶4D digit ratio in different nationalities were different.