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目的进一步了解学龄儿童的碘营养状况,为适时采取针对性防治措施和科学调整干预策略提供依据。方法在临颍县和舞阳县分别抽取200名8~10岁学龄儿童,用B超测量儿童甲状腺容积,同时采集尿样和儿童家中食用盐样,进行尿碘和盐碘含量检测。结果 400名8~10岁儿童的尿碘中位数为227.5μg/L,尿碘值>200μg/L的有243份(60.75%),盐碘中位数为25.1 mg/kg,甲状腺容积中位数为2.12 mL,甲状腺肿大率为1.0%(4/400),8、9、10岁儿童甲状腺容积中位数分别为1.76 mL、1.92 mL、2.35 mL,组间比较差异有统计学意义(H=44.04,P<0.01)。结论我市碘营养供给情况较好,学龄儿童甲状腺肿大率低于5.0%,但从尿碘数据显示,碘营养处于超适宜水平,要注意加强健康教育,宣传科学补碘。
Objective To understand the status of iodine nutrition in school-age children and provide basis for timely prevention and treatment measures and scientific adjustment of intervention strategies. Methods Two hundred and eighty school-age children aged 8-10 years were collected from Linying and Wuyang counties respectively. Thyroid volume was measured by B ultrasound. Urinary samples and salt samples from children’s homes were also collected to detect urine iodine and iodine content. Results The median urinary iodine concentration was 227.5 μg / L for 400 children aged 8-10 years, 243 (60.75%) for urinary iodine value> 200 μg / L, and 25.1 mg / kg for salt iodine. The thyroid volume The median of thyroid volume was 2.12 mL and 1.0% (4/400) respectively. The median thyroid volumes of children aged 8, 9 and 10 years were 1.76 mL, 1.92 mL and 2.35 mL, respectively. There was significant difference between the two groups (H = 44.04, P <0.01). Conclusion The supply of iodine nutrition in our city is better, and the goiter rate in school-age children is less than 5.0%. However, from the data of urinary iodine, iodine nutrition is at a super-optimal level. We should pay attention to strengthening health education and publicizing the scientific supplement of iodine.