 Significant differences in the initiation of delinquency were first observed in the spring of Grade 7.Panel youth from CTC communities were 25% less likely than panel youth from control communities to initiate delinquent behavior, and they remained so in Grade 8.Significantly lower delinquency initiation rates were sustained through Grade 10, when panel youth from CTC communities were 17% less likely to initiate delinquency than panel youth from control communities.