Early Development and Premorbid Social Adjustment during Childhood and Adolescence in Schizophrenic Patients / 신경정신의학

ABSTRACT

OBJECTIVES: Schizophrenia, one of the major mental illnesses, shows abnormal developmental patterns such as delayed developmental milestones, impaired language and motor function, and poor premorbid social adjustment long before the onset of clinical symptoms of illness. In this study, we tried to find out developmental patterns and premorbid adjustment during childhood and adolescence in Schizophrenic patients. METHODS: The subjects were 56 inpatients (26 male patients and 30 female patients) who met the diagnostic criteria for schizophrenia by DSM-IV and 52 healthy control subjects (25 male patients and 26 female patients). Interview with subjects and their families and the review of medical records were done to assess sociodemographic factors, timing of developmental milestones, language and motor function of childhood, and timing of sexual maturational events. Obstetrical Complication Scale of Lewis was used to get information on the subjects' prenatal and perinatal history, and Premorbid Social Adjustment Scale (PSAS) to assess premorbid adjustment. RESULTS: 1) There were no significant differences in the rates of obstetrical complications. The deveolpmental milestones during infancy such as sitting, walking, age of first sentence were significantly delayed in the Schizophrenics than in the controls (p<0.05). 2) Disturbances of speech and language development were significantly more common in the schizophrenics than in the controls (p<0.05), but there were no significant differences in the rates of disturbance in motor development. Mean ages of reading and writing were significantly delayed in schizophrenics than in the controls (p<0.05). No significant differences were found between males and females for either language disturbance or motor disturbance in the Schizophrenics. 3) During adolescence, premorbid adjustment was poorer in Schizophrenic patients (p<0.05). The Schizophrenic patients scored significantly worse than the controls on both sociability and schooling domains (p<0.05). There was a trend for correlation between poor premorbid functioning and early age of onset, but it failed to achieve statistical significance (Spearman's coeff =-0.27, p=.07). 4) Male Schizophrenic subjects showed poorer premorbid functioning on schooling domain than female Schizophrenic subjects (p<0.05). No significant difference was recogni ed in timing of sexual maturational events between Schizophrenics and controls. CONCLUSION: In summary, the Schizophrenics were significantly delayed in infantile developmental milestones, impaired in development of language, delayed mean age of reading and writing, and showed poorer premorbid social adjustment than the controls.