The British Journal of Nutrition · 5 authors, 6 centres
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This birth cohort study examined associations between maternal and infant selenium status at delivery and infant growth outcomes up to 2 years of age. It found that higher whole blood selenium in venous cord blood was associated with a small, statistically significant decrease in birth weight and a small decrease in length-for-age z-score over time.
The primary outcomes were infant anthropometry (birth weight, LAZ, WAZ, WLZ, head circumference) and adverse birth outcomes (LBW, SGA, PTB). Central findings include that higher venous cord blood whole blood selenium was associated with a small decrease in birth weight (between 24 and 27 g per unit increase) and a small negative association with LAZ over the first two years of life. The study also found an increased risk of SGA with higher cord blood whole blood selenium. Associations were generally small, with many results not statistically significant after adjustment.
