Chien-Wen Tseng

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OBJECTIVE To examine racial/ethnic and economic variation in cost-related medication underuse among insured adults with diabetes. RESEARCH DESIGN AND METHODS We surveyed 5,086 participants from the multicenter Translating Research Into Action for Diabetes Study. Respondents reported whether they used less medication because of cost in the past 12 months.(More)
The authors apply a lossy compression algorithm to medical images, and quantify the quality of the images by the diagnostic performance of radiologists, as well as by traditional signal-to-noise ratios and subjective ratings. The authors' study is unlike previous studies of the effects of lossy compression in that they consider nonbinary detection tasks,(More)
Importance Neural tube defects are among the most common major congenital anomalies in the United States and may lead to a range of disabilities or death. Daily folic acid supplementation in the periconceptional period can prevent neural tube defects. However, most women do not receive the recommended daily intake of folate from diet alone. Objective To(More)
BACKGROUND Studies have associated thiazolidinedione (TZD) treatment with cardiovascular disease (CVD) and questioned whether the two available TZDs, rosiglitazone and pioglitazone, have different CVD risks. We compared CVD incidence, cardiovascular (CV), and all-cause mortality in type 2 diabetic patients treated with rosiglitazone or pioglitazone as their(More)
BACKGROUND Little is known about drug cost communications of Medicare Part D beneficiaries with chronic conditions such as diabetes. The purpose of this study is to assess Medicare Part D beneficiaries with diabetes' levels of communication with physicians regarding prescription drug costs; the perceived importance of these communications; levels of(More)
This study proposes a high coupling transformer using current silicon-based technology. Maintaining identical self inductance of proposed transformer, the different layout configuration is discussed in this work. Moreover, an equivalent circuit is proposed to investigate the device behavior especially for high frequency
reducing sodium intake and increasing potassium intake. There are various ways to improve intakes of minerals in the population. Adherence to dietary guidelines, with ample fruit and vegetables, whole grains, and lowfat dairy products, should be promoted. Food companies can help by promoting the availability of healthier foods and also by improving the type(More)
CONTEXT The majority of Medicare drug benefits in managed care (Medicare + Choice) have annual dollar limits or caps and many beneficiaries face temporary but potentially significant gaps in coverage after exceeding caps before the end of the year. In the new national Medicare drug benefit, beneficiaries with high medication expenditures will also face a(More)
CONTEXT Annual dollar limits, or "caps," on drug benefits are common in Medicare managed care (Medicare + Choice) and have been part of several proposals for a national Medicare drug benefit. OBJECTIVES To determine how cap levels affect the percentage of patients exceeding the cap and their out-of-pocket drug costs and to identify the medications that(More)
BACKGROUND Our understanding of social disparities in diabetes-related health behaviors is incomplete. The purpose of this study was to determine if having less education is associated with poorer diabetes-related health behaviors. METHODS This observational study was based on a cohort of 8,763 survey respondents drawn from ~180,000 patients with diabetes(More)