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Table 2 Sample selection

From: Medication adherence and utilization in patients with schizophrenia or bipolar disorder receiving aripiprazole, quetiapine, or ziprasidone at hospital discharge: A retrospective cohort study

Criteria Number of Patients in
Schizophrenia Cohort Bipolar Disorder Cohort
Total number of patients with ≥1 inpatient admissions for treatment of condition of interest* during study period** and 228 389
Received oral ziprasidone, ariprazole, or quetiapine on the day of discharge or immediately preceding one and 90 169
≥6 months enrollment prior to “qualifying” admission and 66 127
≥6 months enrollment subsequent to date of discharge of “qualifying” admission and 52 110
Had no evidence of receipt of clozapine at any time during study period and 47 109
Were not enrolled in insurance plan with mental health “carve out” and 45 106
Were aged ≥18 years as of date of qualifying hospital admission and 44 87
Had no evidence of epilepsy prior to qualifying admission and 44 85
Had no evidence of other condition of interest* during study period 43 84
  1. *Either schizophrenia or bipolar disorder.
  2. *For patients with multiple such admissions, only the first such admission will be examined; study period spans the period January 1, 2001 to September 30, 2008.