May. 15, 2022
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(n = 61) Box plots illustrate the distributions of screening (initial) and diagnostic (confirmatory) blood lead levels. The tops of the boxes represent the 75th percentile and the bottoms the 25th percentile. The middle line of the box is the median. X represents the mean. Circles represent outliers. Whiskers indicate the standard deviations. (Source: Angelon-Gaetz KA, Klaus C, Chaudhry EA, Bean DK. Lead in spices, herbal remedies, and ceremonial powders sampled from home investigations for children with elevated blood lead levels--North Carolina, 2011-2018. MMWR Morb Mortal Wkly Rep 2018;67:1290-4. [CDC]. Public domain.)