A CONTROLLED STUDY OF SIBLINGS OF HYPERACTIVE CHILDREN

Abstract

The hyperactive child syndrome was more common among brothers of hyperactive children than among brothers of controls, 26% vs. 9%. Both probands and their brothers presented with more symptoms of depression-anxiety than controls. The probands, but not their sibs, presented with more antisocial symptoms than controls. Although differences in intelligence and achievement scores were found between probands, their sibs and controls, intelligence level and academic achievement were within normal limits in all groups.