Hospitalization risk factors in antipsychotic-treated schizophrenia, bipolar I disorder or major depressive disorder

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Abstract
Aim: To examine hospitalization risk factors in antipsychotic-treated patients with schizophrenia, bipolar I disorder (BD-I) or major depressive disorder (MDD). Patients & methods: Using Truven Health MarketScan ® Commercial, Medicaid and Medicare Supplemental data (01/01/2012–06/30/2016), logistic regression models were performed to identify risk factors for both psychiatric and all-cause hospitalization in three separate analyses. Results: Significant risk factors included prior hospitalization (schizophrenia: odds ratio [95% CI]: 2.83 [2.50–3.21; psychiatric]; 2.58 [2.31–2.87; all-cause]; BD-I: 2.42 [2.23–2.63]; 2.09 [1.96–2.23]; MDD: 2.81 [2.49–3.16]; 2.21 [2.03–2.40]), previous antipsychotic treatment (schizophrenia: 1.71 [1.52–1.93]; 1.31 [1.18–1.46]; BD-I: 1.33 [1.23–1.44]; 1.22 [1.14–1.30]; MDD: 1.31 (1.11–1.54); 1.17 (1.04–1.32) and substance abuse (schizophrenia: 1.42 [1.27–1.60]; 1.37 [1.23–1.53]; BD-I: 1.72 [1.58–1.86]; 1.61 [1.50–1.72]; MDD: 1.90 [1.68–2.15] and 1.55 [1.41–1.71]). Conclusion: Prior hospitalization, previous antipsychotic treatment and substance abuse were associated with increased hospitalization risk in schizophrenia, BD-I or MDD.

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