Hospitalization Risks in the Treatment of Schizophrenia: Comparison of Antipsychotic Medications

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Abstract

Abstract:

This study used administrative claims data to compare the relative risks for hospitalization among commercially insured patients with schizophrenia receiving atypical and typical antipsychotic drugs. Cox proportional hazard regression estimates, adjusted for differences in patient characteristics, suggested that among patients treated with the 4 atypical antipsychotic drugs, only olanzapine had a significantly higher risk for hospitalization than the typical antipsychotic drugs (hazard ratio [HR], 1.81; 95% confidence interval [CI], 1.20-2.75). In addition, risk for hospitalization with olanzapine was significantly higher than that for risperidone (HR, 1.34; 95% CI, 1.03-1.74) and numerically higher than that for quetiapine (HR, 1.40; 95% CI, 0.94-2.07). Overall, olanzapine was associated with a higher risk for hospitalization than the typical antipsychotic drugs and among the atypical antipsychotic drugs, risperidone and, potentially, quetiapine.

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