Yamaki Kiyoshi, Wing Coady, Mitchell Dale, Owen Randall, Heller Tamar
Kiyoshi Yamaki, University of Illinois at Chicago; Coady Wing, Indiana University Bloomington; and Dale Mitchell, Randall Owen, and Tamar Heller, University of Illinois at Chicago.
Intellect Dev Disabil. 2018 Apr;56(2):133-146. doi: 10.1352/1934-9556-56.2.133.
States have increasingly transitioned Medicaid enrollees with disabilities from fee-for-service (FFS) to Medicaid Managed Care (MMC), intending to reduce state Medicaid spending and to provide better access to health services. Yet, previous studies on the impact of MMC are limited and findings are inconsistent. We analyzed the impact of MMC on costs by tracking Illinois's Medicaid acute health services expenditures for adults with intellectual and developmental disabilities (IDD) living in the community ( n = 1,216) before and after their transition to MMC. Results of the difference-in-differences (DID) regression analysis using an inverse propensity score weight (IPW) matched comparison group ( n = 1,134) design suggest that there were no significant state Medicaid cost savings in transitioning people with IDD from FFS to MMC.
各州越来越多地将残疾医疗补助参保人从按服务付费（FFS）模式转变为医疗补助管理式医疗（MMC）模式，旨在减少州医疗补助支出并提供更好的医疗服务获取途径。然而，先前关于MMC影响的研究有限，且研究结果并不一致。我们通过追踪伊利诺伊州社区中患有智力和发育障碍（IDD）的成年人（n = 1216）在转为MMC模式前后的医疗补助急性医疗服务支出，分析了MMC对成本的影响。使用逆倾向得分权重（IPW）匹配对照组（n = 1134）设计的双重差分（DID）回归分析结果表明，将IDD患者从FFS模式转为MMC模式后，州医疗补助成本并未显著节省。
