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对学龄前（３～６岁）和学龄期（７～１２岁）二组正常儿童甲襞微循环进行比较，结果表明：学龄前组管袢数目较学龄组少（Ｐ＜０．０５），而乳头下静脉丛出现率较学龄组高（Ｐ＜０．０１），其余指标二组比较无显著性差异（Ｐ＞０．０５），指出不同年龄组的儿童甲襞微循环正常值存在一定差异
The results showed that the number of tubules in pre-school age group was less than that in school-age group (P <0.05) While the incidence of papillary venous plexus was higher than that of the school-age group (P <0.01). There was no significant difference between the other two groups (P> 0.05), indicating that there were certain normal values of microcirculation in children of different age groups difference