Effectiveness of the anger-control program in reducing anger expression in patients with schizophrenia

The purpose of this study was to evaluate the anger control program in reducing anger expression in patients with schizophrenia. The study had an interrupted time series with nonequivalent comparison group design. Data were collected before the intervention, at the end of the 5th and 10th group sessions, and 2 weeks after the 10th (or last) session. A total of 78 patients were assigned to experimental (the anger control program) or comparison groups. The Generalized Estimating Equation (GEE) was used to analyze the longitudinal data. The program was found to reduce anger expression in patients with schizophrenia effectively and to increase their anger control ability.