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November 9, 1984

Incorrect Values

JAMA. 1984;252(18):2548. doi:10.1001/jama.1984.03350180018022

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Four errors occurred in the article entitled "The Relationship Between Prenatal Exposure to Lead and Congenital Anomalies," published in the June 8 issue of The Journal (1984; 251:2956-2959). On page 2956, the last sentence in the "Study Sample" section should have read as follows: "They were analyzed in duplicate by an anodic-stripping voltammetry to a precision of 2 μg/dL [not 2 mg/L] as previously reported.9" On page 2958, in Table 4, the first entry in the "Variable" column should have read as follows: "Log10 lead, μg/dL [not mg/L]." Also on that same page, the last sentence in the second full paragraph should have read as follows: "Holding the other factors constant, the relative risk of a child's demonstrating a malformation at birth increases by 50% as lead levels increase 0.7 to the mean of 6.3 μg/dL [not mg/L], and increases another 50% at 24 μg/ dL."