Residual effects of lead poisoning on Denver Developmental Screening Test scores

Subtest and Total scores on the Denver Developmental Screening Test were examined for a grop of 22 prechool-aged low-income children who had been lead-poisoned, then medically deleaded. Pretest scores were obtained before blood lead elevations occurred; posttest scores were obtained an average of 4.5 months after deleading. Pretest scores were comparable to those of matched Control group, but posttest scores on th Fine Motor-Adaptive subtest declined, indicating significant residual effecs of lead poisoning.