Effects of Medicare Part D on guideline-concordant pharmacotherapy for bipolar I disorder among dual beneficiaries.
Effects of Medicare Part D on guideline-concordant pharmacotherapy for bipolar I disorder among dual beneficiaries.
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DOI:
10.1176/appi.ps.201300123
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发表时间:
2014-03-01
期刊:
影响因子:
--
通讯作者:
Huskamp HA
中科院分区:
文献类型:
--
作者:
Burns ME;Busch AB;Madden JM;Le Cates RF;Zhang F;Adams AS;Ross-Degnan D;Soumerai SB;Huskamp HA
In January 2006 drug insurance coverage shifted from Medicaid to Medicare Part D private drug plans for the 6 million individuals enrolled in both programs. Beneficiaries faced new formularies and utilization management policies. It is uncertain if Part D, when compared to Medicaid, relaxed or tightened psychiatric medication management, which could affect receipt of recommended pharmacotherapy, and emergency department use related to treatment discontinuities. This study examined the impact of the transition from Medicaid to Part D on guideline-concordant pharmacotherapy for bipolar I disorder and emergency department use. Using interrupted time series and Medicaid and Medicare administrative data from 2004–2007, the authors analyzed the effect of the coverage transition on receipt of guideline-concordant anti-manic medication, guideline-discordant antidepressant monotherapy, and emergency department visits for a nationally-representative continuous cohort of 1,431 adults diagnosed with bipolar I disorder. Sixteen months after the transition, the proportion of the population with any recommended anti-manic use was an estimated 3.1 percentage points higher than expected controlling for baseline trends. The monthly proportion of beneficiaries with 7+ days of antidepressant monotherapy was 2.1 percentage points lower than expected. The number of emergency department visits per month increased by 19% immediately post-transition. Increased receipt of guideline-concordant pharmacotherapy for bipolar I disorder may reflect relatively less restrictive management of anti-manic medications under Part D. The clinical significance of these changes is unclear given the small effect sizes. However, increased emergency department visits merit attention for the Medicaid beneficiaries who continue to transition to Part D.
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DOI:
10.1176/ps.2009.60.9.1169
发表时间:
2009-09
期刊:
Psychiatric services (Washington, D.C.)
影响因子:
--
作者:
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通讯作者:
Frank RG