Parents of lead poisoned children often report that their child changed after the acute illness and became in attentive fidgety and often aggressive. There are other clues that suggest that lead may be associated with delinquency. This slide shows some risk factors which are common to delinquents and lead exposure. Moffit has studied delinquents and classified them into 2 groups: the early onset/life persistent group and the later onset/desister group. The early onset group are the career criminals. She and others have showed a high rate of neuropsychological deficits in this group. The late onset group are no different that nondelinquent controls.