鈥� A cumulative psychiatric case register was utilized to examine patterns of psychopathology in 1,334 adolescent patients. Consistent with studies of adult patients, seriousness of disorder was weighted toward being seen in an inpatient rather than outpatient setting; schizophrenia and personality disorder were relatively more common among lower-class patients and neurosis and situational disorder among middle- and upper-class patients; neurosis was more commonly diagnosed among female patients, and personality disorder more commonly diagnosed among males. A ten-year follow-up revealed 54.1% reasonable diagnostic stability on subsequent contacts and 62.2% complete subsequent agreement among patients originally diagnosed as schizophrenic. Aspects of the data demonstrate continuity in adolescent and adult psychopathology, the mythical nature of "normative adolescent turmoil," and what appears to be excessive use of situational disorder in diagnosing adolescent patients.