This study found ethnic disparities in antipsychotic prescription patterns among a large number of publicly insured clients treated for schizophrenia. Given the rapidly changing pharmacological treatment environment, these findings have significant implications for differential quality of care for African American patients. Future studies employing client and provider characteristics are urgently needed to test alternative explanations for ethnic disparities.
The downsizing and closing of state mental health institutions in Philadelphia in the 1990's led to the development of a continuum care network of residential-based services. Although the diversity of care settings increased, congestion in facilities caused many patients to unnecessarily spend extra days in intensive facilities. This study applies a queuing network system with blocking to analyze such congestion processes. "Blocking" denotes situations where patients are turned away from accommodations to which they are referred, and are thus forced to remain in their present facilities until space becomes available. Both mathematical and simulation results are presented and compared. Although queuing models have been used in numerous healthcare studies, the inclusion of blocking is still rare. We found that, in Philadelphia, the shortage of a particular type of facilities may have created "upstream blocking". Thus removal of such facility-specific bottlenecks may be the most efficient way to reduce congestion in the system as a whole.
This article examines trends in antipsychotic medication use in a treated population of publicly funded patients with schizophrenia between 1991 and 1996. Findings from administrative claims data show that antipsychotic prescription rates increased from 79 percent to 83 percent between 1991 and 1996. Atypical antipsychotics were used by 39 percent of the population and comprised 41 percent of all antipsychotic agents prescribed compared to 59 percent for typical agents. Duration on a typical agent was 8 months versus 7.4 months for newer atypicals, with duration 11 months for those on clozapine. The highest switching behavior is found in users of atypicals (58% versus 25% for those on typicals) as is the percent of those who received an antidepressant concurrently with an antipsychotic, which was 44 percent for newer atypical users versus 31 percent for typical users. The lowest antidepressant use was among clozapine users (28%). Atypical users were more likely to be younger Caucasian men with higher use of inpatient and ambulatory mental health services compared to those on typical medications. The newer antipsychotic medications appear to be displacing traditional medications; however, contrary to what the literature suggests, duration is shorter and switching behavior and concurrent use of antidepressants is higher than in typical users.
An enhanced community-based mental health system was not sufficient to prevent homelessness among high-risk persons with serious mental illness. Eleven percent of this group experienced homelessness after referral to an extended acute care facility. Strategies to prevent homelessness should be considered, perhaps at the time of discharge from the referring community hospital or extended acute care facility.
This analysis suggests that most former long-stay patients are able to live in residential settings while receiving community outpatient treatment and intensive case management services at a reduced cost. There is no indication of cost shifting from the psychiatric to the health care sector; however, some cost shifting from the state mental health agency to the Medicaid program has occurred, since most psychiatric hospital care now takes place in community hospitals.
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