宁夏回、汉族群体指长波动性不对称

Fluctuating asymmetry of digit length of Hui and Han ethnic groups in Ningxia

目的探讨宁夏回、汉族群体指长波动性不对称(FA),比较分析宁夏两种不同民族、不同性别群体指长FA均值的分布特点。方法采用体质测量法,研究宁夏回族412例(男219例,女193例)、汉族439例(男241例,女198例)指长FA(2FA、3FA、4FA、5FA)及复合FA(CFA)的均值,并比较其均值的差异性。结果宁夏回、汉族群体指长FA均值均呈现2FA>4FA>3FA>5FA的趋势;同一民族不同性别各指长FA均值男性高于女性,有显著性差异;同一性别不同民族各指长FA均值无显著性差异;男性2FA在|L-R|≥0.04组显著高于女性(P<0.05)。结论指长FA,尤其是2FA存在性别差异。

Objective To study the fluctuating asymmetry （FA） of digit length of Hui and Han ethnic groups in Ningxia, compare the mean value distribution in them of different sexes and nationalities. Methods Anthropometry was used to study the FA（2FA,3FA,4FA,5FA）and CFA of digit length of 412 individuals （219 males, 193 females） of Hui and 439 individuals （241 males, 198 females） of Han nationalities, the mean value of them was compared. Results Our resuhs showed that the FA presented as 2FA 〉 4FA 〉 3FA 〉 5FA; Significant differences of each FA were found between males and females in the same nationality, males had higher mean value than females; For the same sex, there was no significant difference in the mean value of each FA between different nationalities ; As compared with females, males had a significant higher difference in I L-R 1≥ 0.04 on distribution of 2FA （ P 〈 0.05 ）. Conclusion There is sexual difference in FA, especially in 2FA.