Box plots of BPb by age of the 150 children sampled for the linear mixed-model analyses

Copyright information:Taken from "Reduced Intellectual Development in Children with Prenatal Lead Exposure"Environmental Health Perspectives 2005;114(5):791-797.Published online 29 Dec 2005PMCID:PMC1459938.This is an Open Access article: verbatim copying and redistribution of this article are permitted in all media for any purpose, provided this notice is preserved along with the article's original DOI. The lower and upper limits of the rectangular boxes indicate the 25th to 75th percentile range, and the horizontal line within the boxes is at the 50th percentile. The vertical lines extending from the bottom and top of the boxes represent lead values 1.5 times the interquartile range below and above the 25th and 75th percentile, respectively. Open circles represent lead values between 1.5 and 3.0 times the interquartile range below and above the 25th and 75th percentile, and pluses indicate lead values exceeding 3.0 times the interquartile range limit. Plots for each age, with extreme high values, are typical for log distributions plotted on a linear scale. Conversion factor: 10 μg/dL = 0.483 μmol/L.