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目的了解内蒙古少数民族地区碘缺乏病发生动态、防治现状、探索碘缺乏病消长趋势、变化规律及影响因素。方法采取概率比例抽样方法对3 963名8~10岁儿童甲状腺肿大率、尿碘水平进行监测,并对居民户及相关企业盐碘合格率、覆盖率等指标进行流行病学调查。结果随机抽样检测居民食用盐2 328份,碘盐中位数为31.4mg/kg,非碘盐率为0.41%,碘盐覆盖率为99.59%,碘盐合格率为99.11%,合格碘盐食用率为98.71%;重点抽样检测食用盐600份,合格585份,碘盐覆盖率为98.17%,合格率为99.32%,合格碘盐食用率为97.50%;月监测各级盐业公司生产的碘盐96批次864份,批质量合格率为100%,碘盐均数为(30.4±5.02)mg/kg,变异系数为16.51%;尿碘监测400份,尿碘中位数为328.3μg/L;抽检3 963名儿童甲状腺肿大率为2.67%。结论内蒙古少数民族地区碘盐合格率、碘盐覆盖率、合格碘盐食用率,甲状腺肿大率均达到国家标准,尿碘水平趋于理想,人群碘营养状况逐步改善,但还存在非碘盐和不合格碘盐,应加强监管。
Objective To understand the occurrence, prevention and treatment of iodine deficiency disorders in Inner Mongolia ethnic minority areas and to explore the trends, changes and influencing factors of the disappearance and growth of iodine deficiency disorders. Methods Probability proportional sampling method was used to monitor the goiter rate and urinary iodine level in 3 963 children aged 8-10 years and the epidemiological investigation was conducted on the passing rate and coverage of salt and iodine among residents and related enterprises. Results A total of 2 328 table salt samples were collected. The median of iodized salt was 31.4 mg / kg, the non-iodized salt rate was 0.41%, the iodized salt coverage rate was 99.59%, and the qualified rate of iodized salt was 99.11% Rate of 98.71%; sampling and testing key salt 600, 585 qualified, the coverage of iodized salt was 98.17%, the pass rate was 99.32%, the qualified iodized salt consumption was 97.50%; monthly monitoring of salt companies at all levels of iodine Salt 96 batches of 864, batch quality pass rate of 100%, iodized salt average (30.4 ± 5.02) mg / kg, coefficient of variation was 16.51%; urinary iodine monitoring 400, the median urinary iodine was 328.3μg / L; sampling 3 963 children goiter rate was 2.67%. Conclusion The qualified rate of iodized salt, the coverage of iodized salt, the rate of qualified iodized salt and the rate of goiter in goverment reached the national standard in the minority nationality areas of Inner Mongolia. The urinary iodine level tended to be ideal. The iodine nutrition status of the population gradually improved, but non-iodized salt And unqualified iodized salt, should be strengthened supervision.