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. 2017 Nov 7;125(11):117003. doi: 10.1289/EHP1691

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EHP is an open-access journal published with support from the National Institute of Environmental Health Sciences, National Institutes of Health. All content is public domain unless otherwise noted.

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Plot indicating beta coefficients (left y-axis) and beta coefficients per 100 μg increase in hair Se at 10 years, below the spline knot at 665 μg/kg for full score (right y-axis) for boys and girls across verbal comprehension (p equals 0.55), perceptual reasoning (p equals 0.58), working memory (p equals 0.28), processing speed (p equals 0.98), and full developmental score (p equals 0.52) (x-axis) p-Values are for the difference between girls and boys. — Estimates (B-coefficient) and 95% confidence interval (CI) (straight line) for associations between all outcomes at 10 y and hair selenium (Se; below spline knot at $665 μ g / kg$ , per $100 μ g / kg$ ) at 10 y, stratified by gender ( $n = 637$ girls and 659 boys). p-Value for difference between estimates (Wald test). Adjustments: gestational age at birth, age at testing, mothers’ cognitive function assessed at 5 y, number of children in the family, height-for-age z-score (HAZ), modified version of Home Observation for Measurement of the Environment score (HOME), testers, school type and years of schooling, family socioeconomic status (SES), and paternal education (all assessed at 10 y).