William Encinosa

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OBJECTIVE Bariatric surgery is one of the fastest growing hospital procedures. Our objective is to examine the safety outcomes and utilization of resources in the 6 months after bariatric surgery using a nationwide, population-based sample. DATA/DESIGN: We examine insurance claims for 2522 bariatric surgeries, at 308 hospitals, among a population of 5.6(More)
The Sociology of Groups and the Economics of Incentives: Theory and Evidence on Compensation Systems When working together, people engage in non-contractual and informal interactions that constitute the sociology of the group. We use behavioral models and a unique survey of medical groups to analyze how group sociology influences physician incentive pay and(More)
OBJECTIVE Bariatric surgery is one of the fastest growing hospital procedures, but with a 40% complication rate in 2001. Between 2001 and 2005 bariatric surgeries grew by 113%. Our objective is to examine how 6-month complications improved between 2001 and 2006, using a nationwide, population-based sample. DATA/DESIGN: We examined insurance claims in(More)
BACKGROUND : While much is known about the association between drug regimen complexity and drug adherence, little is known about how this association is affected by patient depression. OBJECTIVE : To examine whether the relationship between medication adherence and highly active antiretroviral therapy (HAART) regimen complexity varied with mental health(More)
The extent of use of bariatric surgery and weight-loss medications is unknown. Using the Nationwide Inpatient Sample, we estimate that the number of bariatric surgeries grew 400 percent between 1998 and 2002; such surgeries were performed on 0.6 percent of the 11.5 million adults clinically eligible in 2002. Hospital costs for bariatric surgery grew sixfold(More)
PURPOSE To estimate the impact of diabetic drug adherence on hospitalizations, emergency room (ER) visits, and hospital costs. METHODS It is often difficult to measure the impact of drug adherence on hospitalizations since both adherence and hospitalizations may be correlated with unobservable patient severity. We control for such unobservables using(More)
Many health economists recommend that employers provide employees with a risk-adjusted choice among competing health insurance plans. However, formal risk adjustment is rarely if ever used by employers. This paper examines a range of health benefit design options available to employers, focusing attention not only on risk adjustment but also on its(More)
Underlying many reforms in the Patient Protection and Affordable Care Act (ACA) is the use of electronic medical records (EMRs) to help contain costs. We use MarketScan claims data and American Hospital Association information technology (IT) data to examine whether EMRs can contain costs in the ACA's reforms to reduce patient safety events. We find EMRs do(More)
BACKGROUND More than one-third of the Centers for Medicare and Medicaid Services core meaningful use (MU) requirements deal with medication management. OBJECTIVES To examine what impact the 5 core medication MU criteria have on hospital-acquired adverse drug events (ADEs) and their costs in 2010, as a baseline for the start of MU implementation in 2011.(More)
Twenty-eight states have laws that limit payments in malpractice cases, and several studies indicate that these laws reduce the frequency and severity of malpractice claims and lower premiums. Moreover, proponents believe that such laws reduce health care expenditures by reducing the practice of defensive medicine. However, there is a dearth of empirical(More)