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Peter A. Briss, MD; Lisa S. Rosenblum, MD, MPH
Centers for Disease Control and Prevention Atlanta, Ga

JAMA. 1993;270(21):2556.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

To the Editor.

—We write to address several issues raised by the recent report on lead poisoning among low-income children in Orange County by Gellert et al.¹

Several well-designed prospective cohort studies^2,3 and a meta-analysis⁴ suggest that lead produces adverse neurological effects at blood lead levels at least as low as 0.50 µmol/L (10 µg/dL), the current level of concern as defined by the CDC. Although Gellert et al state that "pediatric lead poisoning is not a major problem affecting Orange County children," they report a 7.25% prevalence of blood lead levels of 0.50 µmol/L (10 µg/dL) or higher among children in that county. Many Orange County children, therefore, have evidence of increased lead exposure.

The statement by Gellert et al that "no action other than retesting is indicated" for children with blood lead levels of 0.50 µmol/L (10 µg/dL) is inaccurate. The CDC recommends that several . . . [Full Text PDF of this Article]

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