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Table 2 Bivariate Correlation of Lead and Achievement

From: Lead exposure and the 2010 achievement test scores of children in New York counties

Academic Outcome Raw Correlation with Lead Burden p-value 95% Confidence Interval
ELA 3rd grade 0.38 0.004 (0.13, 0.58)
ELA 8th grade 0.43 0.001 (0.20, 0.62)
Math 3rd grade 0.47 < 0.0005 (0.23, 0.65)
Math 8th grade 0.45 < 0.0005 (0.22, 0.64)