Continuity of care after inpatient discharge of patients with schizophrenia in the Medicaid program: a retrospective longitudinal cohort analysis.

Olfson M, Marcus SC, Doshi JA. Continuity of care after inpatient discharge of patients with schizophrenia in the Medicaid program: a retrospective longitudinal cohort analysis. The Journal of clinical psychiatry. 2010 Jul 1; 71(7):831-8.

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Abstract:

OBJECTIVE: This study seeks to identify patient, facility, county, and state policy factors associated with timely schizophrenia-related outpatient treatment following hospital discharge. METHOD: A retrospective longitudinal cohort analysis was performed of 2003 national Medicaid claims data supplemented with the American Hospital Association facility survey, the Area Resource File, and a Substance Abuse and Mental Health Services Administration Medicaid policy report. The analysis focuses on treatment episodes of adults, aged 20 to 63 years, who received inpatient care for ICD-9-CM-diagnosed schizophrenia (59,567 total treatment episodes). Rate and adjusted odds ratio (AOR) of schizophrenia-related outpatient visits within 7 days and 30 days following hospital discharge are assessed. RESULTS: Of the 59,567 hospital discharges, 41.7% received schizophrenia-related outpatient visits in 7 days and 59.3% in 30 days following hospital discharge. The adjusted odds of 30-day follow-up outpatient visits were significantly related to preadmission outpatient mental health visits (AOR = 3.72; 99% CI, 3.44-4.03), depot (AOR = 2.83; 99% CI, 2.53-3.18) or oral (AOR = 1.73; 99% CI, 1.62-1.84) antipsychotics as compared with no antipsychotics, and absence of a substance use disorder diagnosis (AOR = 1.35; 99% CI, 1.25-1.45). General hospital as compared with a psychiatric hospital treatment (AOR = 1.32; 99% CI, 1.14-1.54) and patient residence in a county with a larger number of psychiatrists per capita (AOR = 1.27; 99% CI, 1.08-1.50) were related to receiving follow-up outpatient visits. By contrast, residence in a county with a high poverty rate (AOR = 0.60; 99% CI, 0.54-0.67) and treatment in a state with prior authorization requirements for < 12 annual outpatient visits (AOR = 0.69; 99% CI, 0.63-0.75) reduced the odds of follow-up care. CONCLUSIONS: Patient characteristics, clinical management, geographical resource availability, and the mental health policy environment all appear to shape access to care following hospital discharge in the community treatment of adult schizophrenia.