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Int J Environ Res Public Health. 2013 Feb 21;10(2):742-6. doi: 10.3390/ijerph10020742.
A recent publication in International Journal of Environmental Research and Public Health by Chari et al. [1] provides no basis for changing the National Ambient Air Quality Standard (NAAQS) for lead in the U.S. to protect children in low socio-economic (SES) populations. The studies selected by Chari et al. for analysis do not provide comparable information on regression coefficients for the blood lead level-IQ relationship. The coefficients differ from one another more on the basis of unequal blood lead metrics, ages of blood lead measurement, and differences in covariate adjustments and standardization, than the difference postulated by Chari et al. to correspond to low vs. high SES populations.
查里等人最近在《国际环境研究与公共卫生杂志》上发表的一篇文章[1],没有为修改美国保护低收入社会经济群体(SES)儿童的铅的国家环境空气质量标准(NAAQS)提供依据。查里等人选择进行分析的研究并未提供关于血铅水平与智商关系的回归系数的可比信息。这些系数之间的差异更多地是基于血铅测量指标、血铅测量年龄以及协变量调整和标准化的差异,而不是查里等人假设的对应于低 SES 和高 SES 人群的差异。