【摘要】 目的 为探讨学龄儿童甲状腺肿大率居高不下原因。方法 用B超法和触诊法分别检查儿童的甲状腺,对可能影响儿童甲状腺肿大率的因素进行了比较分析。结果 5个抽样县有3个县的碘盐合格率<90％;不同的年龄计算方法所抽取儿童的甲状腺肿大率是不同的;高氟组的儿童甲状腺肿大率明显高于低氟组。结论 未达标县学龄儿童甲状腺肿大率居高不下的原因可能与以下3个方面有关:①年龄计算方法有误;②高氟;③碘盐合格率偏低。更多还原

【Abstract】 Objective In order to analyze the reason on the high thyroid goiter rate(TCR) of school children aged 8 to 10 years in the non-reaching standard counties. Methods Children’s thyroid glands were examined in the way of B ultrasonogra-phy and palpation, a lot of influencing factors of TCR were comparatively analyzed. Results The eligible rates of iodine salt of the 3 counties in the sampling counties are lower than 90%; The TCR of the school children selected by different methods was variant; The TGR in high level fluorine group was obviously higher than that in low level fluorine group. Conclusions The reason on the high TGR of school children in the non-reaching standard counties lies in 3 respects below: ①the wrong method of calculating age; ② high level fluorine; ③ the eligible quality of iodine salt is low.更多还原