Effect of polybrominated biphenyls (PBB) on developmental abilities in young children.

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Abstract
Eighteen children, ages 4 to 6 years, with known exposure to polybrominated biphenyls (PBB) in utero and/or through breast milk were administered developmental tests. These same children had exhibited low scores on a partial developmental assessment two years earlier. Current results were compared to normative test data. Findings showed: 1) PBB cohort children are within the normal range in all areas assessed; 2) An inverse relationship is noted between PBB fat level and scores on some developmental tasks. The importance of this finding for later development is unclear and, thus will bear future monitoring.