Key result
Implementation of Medicare Part D was associated with a greater increase in the odds of antidepressant use among Medicare beneficiaries compared to Medicaid beneficiaries.
Why the study?
Did the implementation of Medicare Part D increase antidepressant use among people with depression compared to other insurance types?
Observational
Did the implementation of Medicare Part D increase antidepressant use among people with depression compared to other insurance types?
Antidepressant use among people with depression increased across all insurance groups from 1997 to 2009, with a significantly greater increase among Medicare beneficiaries following the implementation of Medicare Part D.
Answers are grounded in this paper and cite their sources.
Antidepressant use rose after Part D across groups; leaves open whether coverage expansion drove uptake.
OBJECTIVES: This study examined national trends in antidepressant use before and after implementation of Medicare Part D and compared utilization among individuals with different types of insurance. METHODS: The data source was the Medical Expenditure Panel Survey Household Component (1997-2009), and logistic regression was used for the analysis. RESULTS: The odds of antidepressant use among people with depression increased between 1997 and 2009 in each insurance group (Medicare: adjusted odds ratio [AOR]=3.30, 95% confidence interval [CI]=1.84-5.92; Medicaid: AOR=2.97, CI=2.01-4.40; dually eligible for Medicare and Medicaid: AOR=2.24, CI=1.11-4.54; and private coverage: AOR=6.63, CI=5.23-8.42). The odds of antidepressant use after implementation of Part D increased more among Medicare beneficiaries than among Medicaid beneficiaries (AOR=1.35, CI=1.05-1.72). CONCLUSIONS: The use of antidepressants among people with depression increased in all insurance groups up to 2009; however, the patterns of utilization and the degree of increase over time differed by insurance type.
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Lim et al. (2013) conducted an observational in Depression. Medicare Part D implementation vs. Medicaid beneficiaries was evaluated on Antidepressant use (AOR 1.35, 95% CI 1.05-1.72). Implementation of Medicare Part D was associated with a greater increase in the odds of antidepressant use among Medicare beneficiaries compared to Medicaid beneficiaries.
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