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2,119 result(s) for "Cohen, Joshua T."
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Updating Cost-Effectiveness — The Curious Resilience of the $50,000-per-QALY Threshold
The ratio of $50,000 per quality-adjusted life-year (QALY) gained by using a given health care intervention has long served as a benchmark for the value of U.S. health care. But evidence suggests that it is too low and might best be thought of as an implied lower boundary. For more than two decades, the ratio of $50,000 per quality-adjusted life-year (QALY) gained by using a given health care intervention has played an important if enigmatic role in health policy circles as a benchmark for the value of care. Researchers have summoned this cost-effectiveness ratio in order to champion or denounce particular investments in medical technologies and health programs. Critics, meanwhile, have argued that the ratio is misunderstood and misused. The fact that the $50,000-per-QALY yardstick has persisted attests to the medical community's need for a value threshold and to the advantages enjoyed by incumbents. It has endured even . . .
Perspective and Costing in Cost-Effectiveness Analysis, 1974–2018
Objective Our objective was to examine perspective and costing approaches used in cost-effectiveness analyses (CEAs) and the distribution of reported incremental cost-effectiveness ratios (ICERs). Methods We analyzed the Tufts Medical Center’s CEA and Global Health CEA registries, containing 6907 cost-per-quality-adjusted-life-year (QALY) and 698 cost-per-disability-adjusted-life-year (DALY) studies published through 2018. We examined how often published CEAs included non-health consequences and their impact on ICERs. We also reviewed 45 country-specific guidelines to examine recommended analytic perspectives. Results Study authors often mis-specified or did not clearly state the perspective used. After re-classification by registry reviewers, a healthcare sector or payer perspective was most prevalent (74%). CEAs rarely included unrelated medical costs and impacts on non-healthcare sectors. The most common non-health consequence included was productivity loss in the cost-per-QALY studies (12%) and patient transportation in the cost-per-DALY studies (21%). Of 19,946 cost-per-QALY ratios, the median ICER was $US26,000/QALY (interquartile range [IQR] 2900–110,000), and 18% were cost saving and QALY increasing. Of 5572 cost-per-DALY ratios, the median ICER was $US430/DALY (IQR 67–3400), and 8% were cost saving and DALY averting. Based on 16 cost-per-QALY studies (2017–2018) reporting 68 ICERs from both the healthcare sector and societal perspectives, the median ICER from a societal perspective ($US22,710/QALY [IQR 11,991–49,603]) was more favorable than from a healthcare sector perspective ($US30,402/QALY [IQR 10,486–77,179]). Most governmental guidelines (67%) recommended either a healthcare sector or a payer perspective. Conclusion Researchers should justify and be transparent about their choice of perspective and costing approaches. The use of the impact inventory and reporting of disaggregate outcomes can reduce inconsistencies and confusion.
A Systematic Review of Cost-Effectiveness Studies Reporting Cost-per-DALY Averted
Calculating the cost per disability-adjusted life years (DALYs) averted associated with interventions is an increasing popular means of assessing the cost-effectiveness of strategies to improve population health. However, there has been no systematic attempt to characterize the literature and its evolution. We conducted a systematic review of cost-effectiveness studies reporting cost-per-DALY averted from 2000 through 2015. We developed the Global Health Cost-Effectiveness Analysis (GHCEA) Registry, a repository of English-language cost-per-DALY averted studies indexed in PubMed. To identify candidate studies, we searched PubMed for articles with titles or abstracts containing the phrases \"disability-adjusted\" or \"DALY\". Two reviewers with training in health economics independently reviewed each article selected in our abstract review, gathering information using a standardized data collection form. We summarized descriptive characteristics on study methodology: e.g., intervention type, country of study, study funder, study perspective, along with methodological and reporting practices over two time periods: 2000-2009 and 2010-2015. We analyzed the types of costs included in analyses, the study quality on a scale from 1 (low) to 7 (high), and examined the correlation between diseases researched and the burden of disease in different world regions. We identified 479 cost-per-DALY averted studies published from 2000 through 2015. Studies from Sub-Saharan Africa comprised the largest portion of published studies. The disease areas most commonly studied were communicable, maternal, neonatal, and nutritional disorders (67%), followed by non-communicable diseases (28%). A high proportion of studies evaluated primary prevention strategies (59%). Pharmaceutical interventions were commonly assessed (32%) followed by immunizations (28%). Adherence to good practices for conducting and reporting cost-effectiveness analysis varied considerably. Studies mainly included formal healthcare sector costs. A large number of the studies in Sub-Saharan Africa addressed high-burden conditions such as HIV/AIDS, tuberculosis, neglected tropical diseases and malaria, and diarrhea, lower respiratory infections, meningitis, and other common infectious diseases. The Global Health Cost-Effectiveness Analysis Registry reveals a growing and diverse field of cost-per-DALY averted studies. However, study methods and reporting practices have varied substantially.
Adherence to the iDSI reference case among published cost-per-DALY averted studies
The iDSI reference case, originally published in 2014, aims to improve the quality and comparability of cost-effectiveness analyses (CEA). This study assesses whether the development of the guideline is associated with an improvement in methodological and reporting practices for CEAs using disability-adjusted life-years (DALYs). We analyzed the Tufts Medical Center Global Health CEA Registry to identify cost-per-DALY averted studies published from 2011 to 2017. Among each of 11 principles in the iDSI reference case, we translated all methodological specifications and reporting standards into a series of binary questions (satisfied or not satisfied) and awarded articles one point for each item satisfied. We then calculated methodological and reporting adherence scores separately as a percentage of total possible points, measured as normalized adherence score (0% = no adherence; 100% = full adherence). Using the year 2014 as the dissemination period, we conducted a pre-post analysis. We also conducted sensitivity analyses using: 1) optional criteria in scoring, 2) alternate dissemination period (2014-2015), and 3) alternative comparator classification. Articles averaged 60% adherence to methodological specifications and 74% adherence to reporting standards. While methodological adherence scores did not significantly improve (59% pre-2014 vs. 60% post-2014, p = 0.53), reporting adherence scores increased slightly over time (72% pre-2014 vs. 75% post-2014, p<0.01). Overall, reporting adherence scores exceeded methodological adherence scores (74% vs. 60%, p<0.001). Articles seldom addressed budget impact (9% reporting, 10% methodological) or equity (7% reporting, 7% methodological). The iDSI reference case has substantial potential to serve as a useful resource for researchers and policy-makers in global health settings, but greater effort to promote adherence and awareness is needed to achieve its potential.
Is the neutrophil-to-lymphocyte ratio a useful prognostic indicator in melanoma patients?
The neutrophil-to-lymphocyte ratio (NLR) is gaining traction as a biomarker with utility in a variety of malignancies including melanoma. Intact lymphocyte function is necessary for tumor surveillance and destruction, and neutrophils play a role in suppressing lymphocyte proliferation and in the induction of lymphocyte apoptosis. Early research in melanoma indicates that in high-risk localized melanoma, a high NLR is correlated with worse overall and disease-free survival. Similarly, in metastatic melanoma treated with both metastasectomy and immunotherapies, an elevated NLR is predictive of shortened overall survival and progression-free survival. Future studies incorporating NLR into more traditional melanoma prognostic markers while employing more granular outcomes, are needed to realize the full potential of NLR.
Bi-fluorescent Staphylococcus aureus infection enables single-cell analysis of intracellular killing in vivo
Techniques for studying the clearance of bacterial infections are critical for advances in understanding disease states, immune cell effector functions, and novel antimicrobial therapeutics. Intracellular killing of Staphylococcus aureus by neutrophils can be monitored using a S. aureus strain stably expressing GFP, a fluorophore that is quenched when exposed to the reactive oxygen species (ROS) present in the phagolysosome. Here, we expand upon this method by developing a bi-fluorescent S. aureus killing assay for use in vivo. Conjugating S. aureus with a stable secondary fluorescent marker enables the separation of infected cell samples into three populations: cells that have not engaged in phagocytosis, cells that have engulfed and killed S. aureus , and cells that have viable internalized S. aureus . We identified ATTO647N-NHS Ester as a favorable dye conjugate for generating bi-fluorescent S. aureus due to its stability over time and invariant signal within the neutrophil phagolysosome. To resolve the in vivo utility of ATTO647N/GFP bi-fluorescent S. aureus , we evaluated neutrophil function in a murine model of chronic granulomatous disease (CGD) known to have impaired clearance of S. aureus infection. Analysis of bronchoalveolar lavage (BAL) from animals subjected to pulmonary infection with bi-fluorescent S. aureus demonstrated differences in neutrophil antimicrobial function consistent with the established phenotype of CGD.
FDA’s Proposed Ban on Trans Fats: How Do the Costs and Benefits Stack Up?
The goal of this commentary was to compare the benefits and costs of the US Food and Drug Administration’s proposed ban on artificial trans fats in US food versus other public health risks and interventions. This analysis assessed the remaining risk posed by artificial trans fats versus other risks, comparing them in terms of: (1) population disease burden (prevention of lost life-years and decreased quality of life, aggregated and expressed as quality-adjusted life-years [QALYs]); (2) individual mortality risks for other “voluntary” activities; and (3) cost-effectiveness, which is the unit cost incurred by an intervention per QALY gained. The population impact of remaining trans fats is small compared with many other risks. Conversely, lifetime individual risks are comparable to other individual risks that might be considered notable. Finally, the ban achieves public health gains at low to no cost. The US Food and Drug Administration’s ban on trans fats is sensible from the perspective of economic efficiency. Comparing the health risk addressed and the efficiency of the ban with other benchmarks can help decision makers and the population to better evaluate it.
391 Value estimation of the Diabetes Prevention Program: How well does clinical trial-based cost-effectiveness apply to the real world?
OBJECTIVES/GOALS: Many economic evaluations rely on clinical trial data that may not represent real world populations and intervention effectiveness. We compare risk and cost-effectiveness for the Diabetes Prevention Program (DPP) clinical trial cohort and a real world population eligible for the national DPP to assess the impact of using real world data. METHODS/STUDY POPULATION: To produce real world (US population) representative results, we identified National Health and Nutrition Examination Survey (NHANES) subjects eligible for the national DPP and adjusted projections using survey weights. We used clinical predictive models to estimate individual diabetes risk, and microsimulation to estimate lifetime costs, benefits, and net monetary benefits (NMB) for lifestyle intervention and metformin. We compared results across the DPP clinical trial and NHANES populations. RESULTS/ANTICIPATED RESULTS: Three-year risk of diabetes onset for the DPP trial population (mean of 19.7%, median of 10.3%) exceeded corresponding risk for the NHANES population (mean of 14.6%, median of 4.8%). The proportion of individuals with a three-year diabetes risk < 10% for the DPP trial population (49%) was less than the corresponding proportion for NHANES (67%). Mean NMB for metformin for the DPP trial population ( $9,749) exceeded the corresponding value for NHANES ($ 5,391). The proportion of subjects with negative NMB was 49% for the DPP trial population and 67% for NHANES. Lifestyle intervention had a mean NMB of$34,889 for the DPP trial population and $ 28,652 for NHANES. Only 20% of the NHANES population eligible for national DPP met inclusion/exclusion criteria for the DPP trial. DISCUSSION/SIGNIFICANCE: Real world populations eligible for the national DPP include a greater proportion of low-risk individuals, and for these people, prevention programs may confer smaller benefits. Technology assessments based on clinical trial data should be revised using real world population and treatment effect data.
Measuring the Value of Prescription Drugs
Escalating drug prices have spawned a flurry of initiatives designed to help physicians, payers, and patients understand the value of new therapies and make better choices about their use. But these efforts have revealed numerous analytic and implementation challenges. Escalating drug prices have alarmed physicians and the American public 1 , 2 and led to calls for government price controls. Less visibly, they have also spawned a flurry of private-sector initiatives designed to help physicians, payers, and patients understand the value of new therapies and thus make better choices about their use. Programs recently introduced or advanced by nonprofit organizations, including leading medical professional societies, represent an important innovation in the United States, but they have also revealed numerous analytic and implementation challenges. The most prominent players include the American College of Cardiology and the American Heart Association (ACC–AHA), the American . . .
Unintended Benefits: The Potential Economic Impact Of Addressing Risk Factors To Prevent Alzheimer’s Disease
Certain chronic conditions appear to be modifiable risk factors of Alzheimer's disease and related dementias. To understand the potential health and economic impacts of addressing those risk factors, we used data on a Medicare cohort to simulate four scenarios: a 10 percent reduction in the prevalence of diabetes, hypertension, cardiovascular diseases, respectively, and a 10 percent reduction in body mass index among beneficiaries who were overweight or obese. Our simulation demonstrated that reducing the prevalence of these conditions may yield 'unintended benefits' by lowering the risk, delaying the onset, reducing the duration, and lowering the costs of dementia. More research is needed to clarify the exact relationship between various other chronic diseases and dementia. However, our findings highlight potential health gains and savings opportunities stemming from the better management of other conditions associated with dementia. Adapted from the source document.