Figure 5
Survival rates: time to all-cause medication discontinuation for clozapine, olanzapine, risperidone, quetiapine, ziprasidone versus perphenazine. Abbreviations: CLZ, clozapine; OLZ, olanzapine; RIS, risperidone; QUE, quetiapine; ZIP, ziprasidone; PER, perphenazine. Significant treatment group differences between CLZ, OLZ, and RIS versus perphenazine at p < .05, using Cox Proportional Hazards regression model adjusted for patients and prior treatment characteristics.