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本文通过对拉萨市区525名县级以上干部红细胞内超氧化物歧化酶（SOD）活性测定，结果为：正常组的藏族及汉族均为女性高于男性（P＜0．05）。在年龄组中．除汉族男、女各组的30岁与40岁两年龄组比较有显著性差异外（P＜0．05），其他组均无统计学意义（P＞0.05）。根据进藏的时间不同．对汉族进行了不同进藏年限的t检验，除50年代与60年代进藏组有显著性差异（P＜0．05），其余组无显著性差异（P＞0．05）。多血症组的藏族及汉族组有显著性差异（P＜0．05）。血脂增高组的藏族及汉族组无统计学意义（P＞0．05）。
In this paper, we measured the activity of erythrocyte superoxide dismutase (SOD) in 525 cadres at or above the county level in Lhasa. The results showed that the Tibetan and Han nationality in the normal group were both higher than the male (P <0.05). In the age group. Except for Han and Han women of both age groups, there were significant differences between the two age groups of 30 years and 40 years old (P <0.05), but no significant difference was found in other groups (P> 0.05). According to the time into Tibet is different. There were significant differences (P <0.05) between the 50s and the 60s into the Tibetan group, but the other groups showed no significant difference (P> 0.05). There was a significant difference between Tibetan and Han nationality in the group of hyperlipidemia (P <0.05). There was no significant difference between Tibetan and Han nationality group in hyperlipidemia group (P> 0.05).