Richard Chapman

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PURPOSE Cost-utility analyses (CUAs) present the value of an intervention as the ratio of its incremental cost divided by its incremental survival benefit, with survival weighted by utilities to produce quality-adjusted life years (QALYs). We critically reviewed the CUA literature and its role in informing clinical oncology practice, research priorities,(More)
BACKGROUND Many older individuals have concomitant hypertension and dyslipidaemia--two conditions that, together with age, increase the risk of adverse cardiovascular events. Adherence to antihypertensive (AH) and lipid-lowering (LL) therapy is therefore particularly important in older patients with concomitant hypertension and dyslipidaemia. OBJECTIVE To(More)
The argument that prescription drugs are cost-effective has been made both by the pharmaceutical industry to support rising drug prices and expenditures, and by advocates of expanded drug coverage for elderly and low-income persons. A new database of 228 published cost-utility analyses sheds light on the issue. According to published data, some drugs do(More)
PURPOSE Cost-utility analysis is a type of cost-effectiveness analysis in which health effects are measured in terms of quality-adjusted life-years (QALYs) gained. Such analyses have become popular for examining the health and economic consequences of health and medical interventions, and they have been recommended by leaders in the field. These(More)
The objectives of this study were to explore the relation between body mass index (BMI) and prevalence of diabetes mellitus, hypertension and dyslipidaemia; examine BMI distributions among patients with these conditions; and compare results from two national surveys. The Study to Help Improve Early evaluation and management of risk factors Leading to(More)
PURPOSE This paper investigates the impact of quality-of-life adjustment on cost-effectiveness analyses, by comparing ratios from published studies that have reported both incremental costs per (unadjusted) life-year and per quality-adjusted life-year for the same intervention. METHODS A systematic literature search identified 228 original cost-utility(More)
BACKGROUND Cardiovascular (CV) events are prevalent and expensive worldwide both in terms of direct medical costs at the time of the event and follow-up healthcare after the event. This study aims to determine initial and follow-up costs for cardiovascular (CV) events in US managed care enrollees and to compare to healthcare costs for matched patients(More)
BACKGROUND Cost-effectiveness analyses of clinical preventive services are a potential means to aid public health resource allocation. Cost-utility analysis (CUA) is a specific form of cost-effectiveness analysis where results are expressed in terms of cost per quality-adjusted life year (QALY) gained. To increase the transparency and comparability of CUAs,(More)
OBJECTIVES The authors compiled a comprehensive league table of cost/QALY ratios, and a standardized table of analyses satisfying selected Reference Case criteria from the USPHS Panel on Cost-Effectiveness in Health and Medicine. METHODS They identified 228 cost-utility analyses (CUAs) through literature searches, and abstracted data on methods and(More)
BACKGROUND Studies derived from continuous national surveys have shown that the prevalence of diagnosed diabetes mellitus in the US is increasing. This study estimated the prevalence in 2004 of self-reported diagnosis of diabetes and other conditions in a community-based population, using data from the Study to Help Improve Early evaluation and management(More)