结论：环境性铅接触与美国居民龋齿发生率增多相关。
Conclusions Environmental lead exposure is associated with an increased prevalence of dental caries in the us population.
在某种程度上，血铅水平的差异说明美国居民龋齿发生率与收入水平和地区不同有关。
Differences in blood lead level explained some of the differences in caries prevalence in different income levels and regions of the US.
肥胖儿发生率逐年上升；营养性缺铁性贫血、乳牙龋齿患病率呈逐年下降趋势。
The prevalence of nutritional iron deficiency anemia and baby teeth dental caries was downgrade year by year.
肥胖儿发生率逐年上升；营养性缺铁性贫血、乳牙龋齿患病率呈逐年下降趋势。
The prevalence of nutritional iron deficiency anemia and baby teeth dental caries was downgrade year by year.
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