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  • Dual Medicare and Veteran Health Administration use and ambulatory care sensitive hospitalizations

Dual Medicare and Veteran Health Administration use and ambulatory care sensitive hospitalizations

Ajmera, M., Wilkins, T. L., & Sambamoorthi, U. (2011). Dual Medicare and Veteran Health Administration use and ambulatory care sensitive hospitalizations. Journal of General Internal Medicine, 26(Suppl 2), 669-75. https://doi.org/10.1007/s11606-011-1788-4

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Abstract

OBJECTIVE: The objective of the study is to examine the association between ambulatory care sensitive hospitalizations (ACSH) and dual Medicare/Veteran Health Administration use.

PARTICIPANTS: A nationally representative sample of Medicare beneficiaries, who participated in the Medicare Current Beneficiary Survey (MCBS).

DESIGN/MEASUREMENTS: Cross-sectional analyses (N = 44,988) of linked fee-for-service Medicare claims and survey data from multiple years of the MCBS (2001-2005). Any ACSH and specific types of ACSH were measured using the list of prevention quality indicators developed by the Agency for Healthcare Research and Quality. Among veterans, dual Medicare/VHA use was defined as having inpatient or outpatient visits paid by VHA and consisted of three categories: 1) predominant-VHA use; 2) some VHA use and no VHA use. Unadjusted group differences in any ACSH were tested using chi-square tests. Logistic regressions were used to analyze the association between dual Medicare/VHA use and ACSH after controlling for demographic, socio-economic status, health status, functional status, smoking status and obesity. All analyses accounted for the complex design of the MCBS.

RESULTS: Among inpatient users, 10.1% had ACSH events for acute conditions and 15.8% for chronic conditions. Among all survey respondents, 5% had any ACSH event. Among predominant-VHA users the rate was 4.9% and among veterans with some VHA use it was 3.7%. In bivariate and multivariate analyses, dual Medicare/VHA use was not significantly associated with any ACSH.

CONCLUSION: In a representative sample of Medicare beneficiaries, despite low income and health status, veterans with dual Medicare/VHA use were as likely as veterans without dual use to have any ACSH, perhaps due to expanded healthcare access and emphasis on primary care in the VHA system.

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