Importance Chronic opioid use imposes a substantial burden in terms of morbidity and
economic costs. Whether opioid-naive patients undergoing surgery are at increased risk for …

We use insurance claims data covering 28% of individuals with employer-sponsored health
insurance in the United States to study the variation in health spending on the privately …

Objectives To identify trends in concurrent use of a benzodiazepine and an opioid and to
identify the impact of these trends on admissions to hospital and emergency room visits for …

We study the drivers of geographic variation in US health care utilization, using an empirical
strategy that exploits migration of Medicare patients to separate the role of demand and …

We estimate the effect of current location on elderly mortality by analyzing outcomes of
movers in the Medicare population. We control for movers' origin locations as well as a rich …

There is considerable controversy about the causes of regional variations in health care
expenditures. Using vignettes from patient and physician surveys linked to fee-for-service …

There are widespread differences in health care spending and utilization across regions of
the US as well as in other countries. Are these variations caused by demand-side factors …

Background Younger children in a school grade cohort may be more likely to receive a
diagnosis of attention deficit–hyperactivity disorder (ADHD) than their older peers because …

Abstract In the United States, health care technology has contributed to rising survival rates,
yet health care spending relative to GDP has also grown more rapidly than in any other …

Identifying policies that will cut or constrain US health care spending and spending growth
dominates reform efforts, yet little is known about whether the drivers of spending levels and …