Conclusions Resurgent goiter rate is mainly resulted from low and intermittent of iodine and protein intake, and thus measures should be taken to improve their nutritional status.
结论山区儿童特别是山区住校生碘摄入量低且不持续及食物中蛋白质较少是导致甲肿率回升的主要原因，应采取措施改善其营养状况。
Selecting appropriate evaluation indicators for surveying and monitoring iodine nutritional status is needed.
碘营养状况的调查和监测需要选择适当的评价指标。
Objective To explore the change of children's iodine nutritional status in different areas before and after universal salt iodization.
目的了解不同地区儿童碘营养状况在全民食盐加碘前后有何变化。
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