Hangsheng Liu

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Use of neuroleptic medications is common among elderly patients. Using multivariate models, the authors found that use of antipsychotic medications, age, and disability were strong predictors of developing self-reported Parkinson disease (PD) in the subsequent year among 1992 to 2000 Medicare Current Beneficiary Survey participants. Although more research(More)
BACKGROUND Hospital associated infections are major problems, which are increasing in incidence and very costly. However, most research has focused only on measuring consequences associated with the initial hospitalization. We explored the long-term consequences of infections in elderly Medicare patients admitted to an intensive care unit (ICU) and(More)
OBJECTIVE The study evaluated the accuracy of Medicare claims in identifying elderly patients with depression compared with diagnoses of depression made with validated self-report depression scales. METHODS The study included 1,551 participants in the Medicare Primary and Consumer-Directed Care Demonstration. They resided in 19 counties in three states.(More)
OBJECTIVE To evaluate the ability of the structure and code sets specified in the National Council for Prescription Drug Programs Structured and Codified Sig Format to represent ambulatory electronic prescriptions. DESIGN We parsed the Sig strings from a sample of 20,161 de-identified ambulatory e-prescriptions into variables representing the fields of(More)
In this article, the authors explore why medical device innovation has traditionally been geared so thoroughly toward improving performance, with little regard to cost. They argue that the changing incentives in the health care sector and the move to value-based payment models, accelerated by the implementation of the Affordable Care Act, will force device(More)
R ecent advances in drug development make curing chronic and deadly conditions a distinct possibility. A headline-grabbing example is Gilead Sciences Inc.'s 2013 introduction of Sovaldi, 1 a new treatment that can cure 90 percent of patients with chronic hepatitis C virus infection. 2 Less visible but equally remarkable are gene therapy treatments in(More)
This article leverages existing data on wellness programs to explore patterns of wellness program availability, employers' use of incentives, and program participation and utilization among employees. Researchers used two sets of data for this project: The first included data from the 2012 RAND Employer Survey, which used a nationally representative sample(More)
RAND working papers are intended to share researchers' latest findings and to solicit informal peer review. This working paper has been approved for circulation by RAND Justice, Infrastructure, and Environment but has not been formally edited. Unless otherwise indicated, working papers can be quoted and cited without permission of the author, provided the(More)
RAND working papers are intended to share researchers' latest findings and to solicit informal peer review. This working paper has been approved for circulation by RAND Justice, Infrastructure, and Environment but has not been formally edited. Unless otherwise indicated, working papers can be quoted and cited without permission of the author, provided the(More)
BACKGROUND Since 1994, Pennsylvania, like several other states, has provided a 5% discount on workers' compensation insurance premiums for firms with a certified joint labor management safety committee. This study explored the factors affecting program participation and evaluated the effect of this program on work injuries. METHODS Using Pennsylvania(More)
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