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目的了解陕西省碘缺乏病防治现况。方法于2011年在陕西省抽取30个县30所小学的1 260名8~10岁学龄儿童,用触诊法和B超法检查甲状腺肿大情况,检测其家中1 260份食盐的碘含量,检测365份尿样碘含量,同时测定451份孕妇和哺乳期妇女尿碘浓度。结果盐碘均值为32.6 mg/kg,碘盐覆盖率为99.8%,碘盐合格率为98.3%,合格碘盐食用率为98.1%;8~10岁学龄儿童甲状腺触诊肿大率为4.5%,B超检测肿大率为3.6%;儿童、孕妇、哺乳期妇女尿碘中位数分别为287.9、234.0、238.2μg/L。结论陕西省8~10岁儿童的碘营养处于超适宜水平,孕妇和哺乳期妇女的碘营养处于适宜水平,儿童甲状腺肿大率达标,碘缺乏病得到持续有效控制。
Objective To understand the status of iodine deficiency disorders in Shaanxi Province. Methods A total of 1,260 schoolchildren aged 8 to 10 in 30 primary schools in 30 counties were sampled from Shaanxi Province in 2011. Thyroid enlargement was examined by palpation and B-mode ultrasonography. The iodine content of 1 260 salt samples in their families was detected. 365 urine samples were tested for iodine and 451 pregnant and lactating women were also tested for urinary iodine. Results The average salt iodine value was 32.6 mg / kg, the coverage rate of iodized salt was 99.8%, the qualified rate of iodized salt was 98.3% and the qualified iodine salt consumption rate was 98.1%. The thyroid palpation rate of children aged 8-10 was 4.5% , B-test detection rate was 3.6%; children, pregnant women, lactating women urinary iodine median were 287.9,234.0,238.2μg / L. Conclusion The iodine nutrition of children aged 8 ~ 10 years in Shaanxi province is at a super-optimal level. The iodine nutrition of pregnant women and lactating women is at an appropriate level, the goiter rate of children is up to the standard, and the iodine deficiency disorder is effectively and continuously controlled.