Hospitalization resource utilization and costs among Medicaid insured patients with schizophrenia with different treatment durations of long-acting injectable antipsychotic therapy.

Abstract:

:This study evaluated the impact of using long-acting injectable (LAI) antipsychotics for a longer treatment duration versus a short duration on health care resource utilization among Medicaid-insured schizophrenia patients. Schizophrenia patients 13 years or older initiating LAI antipsychotics were identified from the Truven Health Analytics MarketScan Research Medicaid database between July 1, 2005, and June 30, 2010. The study population was grouped into 2 study cohorts (longer-usage-duration cohort: ≥ 180 days of supply and short-usage-duration cohort: <180 days of supply). Hospitalization-related resource utilization and costs were determined during a variable follow-up period and compared at the unadjusted and adjusted levels. Of the 5694 patients identified, 2838 patients were treated with LAI antipsychotics for a mean duration of 604 (SD, 432) days (mean age, 38.91 years), and 2856 were treated for 86 (SD, 43) days (mean age, 39.96 days). Total hospital lengths of stay, all cause (6.56 [SD, 18.63] vs 4.93 [SD, 13.40] days, P < 0.001) and schizophrenia related (5.18 [SD, 14.96] vs 4.16 [SD, 11.94] days, P = 0.005), and the mean number of hospitalizations, all cause (0.79 [SD, 1.78] vs 0.61 [SD, 1.41], P < 0.001) and schizophrenia related (0.63 [SD, 1.55] vs 0.51 [SD, 1.26], P = 0.001), were lower for the longer-usage-duration cohort. Cox regression results showed that using LAI antipsychotics for a longer duration was correlated with longer time to the first hospitalization for any cause and for schizophrenia. After multivariate regression, longer usage duration of LAI antipsychotics was associated with a decreased number of hospitalizations (-0.15 per year, P < 0.001), a decreased hospital length of stay (-1.50 days, P < 0.001), and reduced hospital payment (-26%, P < 0.001). Patients who are treated with LAI antipsychotics for a longer versus shorter duration use hospital resources less.

journal_name

J Clin Psychopharmacol

authors

Bera R,Offord S,Zubek D,Lau G,Lin J,Karson C

doi

10.1097/JCP.0b013e3182a6082a

subject

Has Abstract

pub_date

2014-02-01 00:00:00

pages

30-5

issue

1

eissn

0271-0749

issn

1533-712X

journal_volume

34

pub_type

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