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本文通过对长治地区汉族左利人群男、女各５３人和一般正常男女各５８人的同心圆斗型纹（愚纹）在各指出现频率的观察与统计分析，结果为：两组内性别间，左右手间差异不显著（Ｐ＞０．０５），两组间一般人群愚纹出现率高于左利人群，差异非常显著（Ｐ＜０．００１）。
Through the observation and statistical analysis of the frequency of concentric circles fighting pattern (streaks) of 53 male and 53 female in the Han nationality in the Changzhi region and 58 normal men and women respectively, the results showed that the gender There was no significant difference between the left and right hands (P> 0.05). The prevalence of stapes pattern in the general population was higher than that of the Zoary people in both groups (P <0.001).