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目的了解无锡市锡山区学龄儿童碘营养水平,为防治碘缺乏病(IDD)提供科学依据。方法对锡山区8~10岁学龄儿童进行盐碘、尿碘监测,按地理分布随机采集儿童食用的碘盐及其尿样,同时对抽检学龄儿童进行甲状腺触诊和B超检查。结果共采集盐样和尿样各200份。碘盐覆盖率为97.5%。碘盐合格率93.0%,合格碘盐食用率95.4%,盐碘中位数为23.09mg/kg,变异系数为22.4%。尿碘检测结果在32.4~666.0μg/L之间,中位数为144.6μg/L,<50μg/L的尿样占1.0%,<100μg/L的尿样占19.0%,>300μg/L的尿样占3.5%。200名抽检儿童中,经甲状腺触诊和B超检查共发现2人甲状腺Ⅰ度肿大。结论锡山区学龄儿童碘营养水平总体适宜,达到国家消除碘缺乏病标准。
Objective To understand the iodine nutrition level of school-age children in Xishan District of Wuxi City to provide a scientific basis for the prevention and treatment of iodine deficiency disorders (IDD). Methods Saline iodine and urinary iodine were monitored in school-aged children aged 8 to 10 in Xishan district. Salt iodine and urine samples were collected from children according to geographical distribution. Thyroid palpation and B-ultrasound were also performed on the sampled children of school age. Results A total of 200 samples of salt and urine samples were collected. Iodized salt coverage was 97.5%. The pass rate of iodized salt was 93.0%, the qualified iodized salt rate was 95.4%, the median of salt iodine was 23.09 mg / kg, the coefficient of variation was 22.4%. The urinary iodine test results ranged from 32.4 to 666.0 μg / L with a median of 144.6 μg / L, urine samples with <50 μg / L accounted for 1.0%, urine samples with <100 μg / L accounted for 19.0%, and urine samples with> 300 μg / L Urine accounted for 3.5%. 200 sampling children, the palpation of the thyroid and B-ultrasound found two thyroid Ⅰ degree enlargement. Conclusion The iodine nutrition of school-age children in Xishan District is generally suitable, reaching the national standard of eliminating iodine deficiency disorders.