Seventy-three patients, diagnosed in childhood as having either maturational lag or organic brain syndrome, were followed for an average of 12 years into late adolescence and early adult life for the purpose of discovering the outcome with respect to ultimate psychiatric status, educational attainment, social adjustment, and global adjustment. At the time of followup 6% had no psychiatric disorder, 80% had personality disorders and 14% were borderline psychotic. Eighty-four percent completed high school, 27% attempted college, of whom 12% were still attending or had graduated. Global rating of outcome evaluated 20% as good or satisfactory and 80% as marginal or poor. (SBH)