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1.
CA Cancer J Clin ; 70(2): 105-124, 2020 03.
Artigo em Inglês | MEDLINE | ID: mdl-32068901

RESUMO

Globally, cancer is the second leading cause of death, with numbers greatly exceeding those for human immunodeficiency virus/acquired immunodeficiency syndrome, tuberculosis, and malaria combined. Limited access to timely diagnosis, to affordable, effective treatment, and to high-quality care are just some of the factors that lead to disparities in cancer survival between countries and within countries. In this article, the authors consider various factors that prevent access to cancer medicines (particularly access to essential cancer medicines). Even if an essential cancer medicine is included on a national medicines list, cost might preclude its use, it might be prescribed or used inappropriately, weak infrastructure might prevent it being accessed by those who could benefit, or quality might not be guaranteed. Potential strategies to address the access problems are discussed, including universal health coverage for essential cancer medicines, fairer methods for pricing cancer medicines, reducing development costs, optimizing regulation, and improving reliability in the global supply chain. Optimizing schedules for cancer therapy could reduce not only costs, but also adverse events, and improve access. More and better biomarkers are required to target patients who are most likely to benefit from cancer medicines. The optimum use of cancer medicines depends on the effective delivery of several services allied to oncology (including laboratory, imaging, surgery, and radiotherapy). Investment is necessary in all aspects of cancer care, from these supportive services to technologies, and the training of health care workers and other staff.


Assuntos
Acessibilidade aos Serviços de Saúde/tendências , Neoplasias/terapia , Qualidade da Assistência à Saúde , Terapia Combinada/tendências , Humanos
2.
Proc Natl Acad Sci U S A ; 120(43): e2302087120, 2023 Oct 24.
Artigo em Inglês | MEDLINE | ID: mdl-37844248

RESUMO

We utilize a coupled economy-agroecology-hydrology modeling framework to capture the cascading impacts of climate change mitigation policy on agriculture and the resulting water quality cobenefits. We analyze a policy that assigns a range of United States government's social cost of carbon estimates ($51, $76, and $152/ton of CO2-equivalents) to fossil fuel-based CO2 emissions. This policy raises energy costs and, importantly for agriculture, boosts the price of nitrogen fertilizer production. At the highest carbon price, US carbon emissions are reduced by about 50%, and nitrogen fertilizer prices rise by about 90%, leading to an approximate 15% reduction in fertilizer applications for corn production across the Mississippi River Basin. Corn and soybean production declines by about 7%, increasing crop prices by 6%, while nitrate leaching declines by about 10%. Simulated nitrate export to the Gulf of Mexico decreases by 8%, ultimately shrinking the average midsummer area of the Gulf of Mexico hypoxic area by 3% and hypoxic volume by 4%. We also consider the additional benefits of restored wetlands to mitigate nitrogen loading to reduce hypoxia in the Gulf of Mexico and find a targeted wetland restoration scenario approximately doubles the effect of a low to moderate social cost of carbon. Wetland restoration alone exhibited spillover effects that increased nitrate leaching in other parts of the basin which were mitigated with the inclusion of the carbon policy. We conclude that a national climate policy aimed at reducing greenhouse gas emissions in the United States would have important water quality cobenefits.

3.
Proc Natl Acad Sci U S A ; 119(5)2022 02 01.
Artigo em Inglês | MEDLINE | ID: mdl-35074869

RESUMO

International initiatives for reducing carbon emissions from deforestation and forest degradation (REDD+) could make critical, cost-effective contributions to tropical countries' nationally determined contributions (NDCs). Norway, a key donor of such initiatives, had a REDD+ partnership with Indonesia, offering results-based payments in exchange for emissions reductions calculated against a historical baseline. Central to this partnership was an area-based moratorium on new oil palm, timber, and logging concessions in primary and peatland forests. We evaluate the effectiveness of the moratorium between 2011 and 2018 by applying a matched triple difference strategy to a unique panel dataset. Treated dryland forest inside moratorium areas retained, at most, an average of 0.65% higher forest cover compared to untreated dryland forest outside the moratorium. By contrast, carbon-rich peatland forest was unaffected by the moratorium. Cumulative avoided dryland deforestation from 2011 until 2018 translates into 67.8 million to 86.9 million tons of emissions reductions, implying an effective carbon price below Norway's US$5 per ton price. Based on Norway's price, our estimated cumulative emissions reductions are equivalent to a payment of US$339 million to US$434.5 million. Annually, our estimates suggest a 3 to 4% contribution to Indonesia's NDC commitment of a 29% emissions reduction by 2030. Despite the Indonesia-Norway partnership ending in 2021, reducing emissions from deforestation remains critical for meeting this commitment. Future area-based REDD+ initiatives could build on the moratorium's outcomes by reforming its incentives and institutional arrangements, particularly in peatland forest areas.


Assuntos
Carbono/economia , Conservação dos Recursos Naturais/economia , Análise Custo-Benefício/economia , Mudança Climática/economia , Florestas , Indonésia , Noruega , Óleo de Palmeira/economia , Paris
4.
Proc Natl Acad Sci U S A ; 119(1)2022 01 04.
Artigo em Inglês | MEDLINE | ID: mdl-34949713

RESUMO

Technological improvement is the most important cause of long-term economic growth. In standard growth models, technology is treated in the aggregate, but an economy can also be viewed as a network in which producers buy goods, convert them to new goods, and sell the production to households or other producers. We develop predictions for how this network amplifies the effects of technological improvements as they propagate along chains of production, showing that longer production chains for an industry bias it toward faster price reduction and that longer production chains for a country bias it toward faster growth. These predictions are in good agreement with data from the World Input Output Database and improve with the passage of time. The results show that production chains play a major role in shaping the long-term evolution of prices, output growth, and structural change.

5.
Breast Cancer Res Treat ; 203(2): 397-406, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37851289

RESUMO

PURPOSE: Mastectomy, breast reconstruction (BR) and breast conserving therapy (BCT) are core components of the treatment paradigm for early-stage disease but are differentially associated with significant financial burdens. Given recent price transparency regulations, we sought to characterize rates of disclosure for breast cancer-related surgery, including mastectomy, BCT, and BR (oncoplastic reconstruction, implant, pedicled flap and free flap) and identify associated factors. METHODS: For this cross-sectional analysis, cost reports were obtained from the Turquoise Health price transparency platform for all U.S. hospitals meeting national accreditation standards for breast cancer care. The Healthcare Cost Report Information System was used to collect facility-specific data. Addresses were geocoded to identify hospital referral and census regions while data from CMS was also used to identify the geographic practice cost index. We leveraged a Poisson regression model and relevant Medicare billing codes to analyze factors associated with price disclosure and the availability of an OOP price estimator. RESULTS: Of 447 identified hospitals, 221 (49.4%) disclosed prices for mastectomy and 188 42.1%) disclosed prices for both mastectomy and some form of reconstruction including oncoplastic reduction (n = 184, 97.9%), implants (n = 187, 99.5%), pedicled flaps (n = 89, 47.3%), and free flaps (n = 81, 43.1%). Non-profit status and increased market competition were associated with price nondisclosure. 121 hospitals (27.1%) had an out-of-pocket price estimator that included at least one breast surgery. CONCLUSIONS: Most eligible hospitals did not disclose prices for breast cancer surgery. Distinct hospital characteristics were associated with price disclosure. Breast cancer patients face persistent difficulty in accessing costs.


Assuntos
Neoplasias da Mama , Retalhos de Tecido Biológico , Mamoplastia , Humanos , Idoso , Estados Unidos/epidemiologia , Feminino , Neoplasias da Mama/epidemiologia , Neoplasias da Mama/cirurgia , Mastectomia , Revelação , Estudos Transversais , Medicare
6.
Proc Biol Sci ; 291(2023): 20232559, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38808450

RESUMO

The spatial structure of populations is key to many (eco-)evolutionary processes. In such cases, the strength and sign of selection on a trait may depend on the spatial scale considered. An example is the evolution of altruism: selection in local environments often favours cheaters over altruists, but this can be outweighed by selection at larger scales, favouring clusters of altruists over clusters of cheaters. For populations subdivided into distinct groups, this effect is described formally by multilevel selection theory. However, many populations do not consist of non-overlapping groups but rather (self-)organize into other ecological patterns. We therefore present a mathematical framework for multiscale selection. This framework decomposes natural selection into two parts: local selection, acting within environments of a certain size, and interlocal selection, acting among them. Varying the size of the local environments subsequently allows one to measure the contribution to selection of each spatial scale. To illustrate the use of this framework, we apply it to models of the evolution of altruism and pathogen transmissibility. The analysis identifies how and to what extent ecological processes at different spatial scales contribute to selection and compete, thus providing a rigorous underpinning to eco-evolutionary intuitions.


Assuntos
Altruísmo , Evolução Biológica , Seleção Genética , Animais , Modelos Biológicos , Dinâmica Populacional
7.
Ann Surg Oncol ; 2024 Jul 26.
Artigo em Inglês | MEDLINE | ID: mdl-39060688

RESUMO

BACKGROUND: The Centers for Medicare and Medicaid Services (CMS) price transparency rule tries to facilitate cost-conscious decision-making. For surgical services, such as pancreaticoduodenectomy (PD), factors mediating transparency and real-world reimbursement are not well described. METHODS: The Leapfrog Survey was used to identify United States hospitals performing PD. Financial and operational data were obtained from Turquoise Health and CMS Cost Reports. Chi-square tests and modified Poisson regression evaluated associations with reimbursement disclosure. Two-part logistic and gamma regression models estimated effects of hospital factors on commercial, Medicare, and self-pay reimbursements for PD. RESULTS: Of 452 Leapfrog hospitals, 295 (65%) disclosed PD hospital or procedure reimbursements. Disclosing hospitals were larger (beds > 200: 81.0% vs. 71.3%, p = 0.04), reported higher net margins (0.7% vs. - 2.1%, p = 0.04), more likely for-profit (26.1% vs. 6.4%, p < 0.001), and teaching-affiliated (82.0% vs. 65.6%, p < 0.001). Nonprofit status conferred hospitalization reimbursement increases of $8683-$12,329, while moderate market concentration predicted savings up to $5066. Teaching affiliation conferred reimbursement increases of $4589-$16,393 for hospitalizations and $644 for procedures. Top Leapfrog volume ratings predicted an increase of up to $7795 for only Medicare hospitalization reimbursement. CONCLUSIONS: Nondisclosure of hospital and procedural reimbursements for PD remains a major issue. Transparency was noted in hospitals with higher margins, size, and academic affiliation. Factors associated with higher reimbursement were non-profit status, academic affiliation, and more equitable market share. Reimbursement inconsistently tracked with PD quality or volume measures. Policy changes may be required to incentivize reimbursement disclosure and translate transparency into increased value for patients.

8.
Ann Surg Oncol ; 31(7): 4339-4348, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38506934

RESUMO

BACKGROUND: Federal rules mandate that hospitals publish payer-specific negotiated prices for all services. Little is known about variation in payer-negotiated prices for surgical oncology services or their relationship to clinical outcomes. We assessed variation in payer-negotiated prices associated with surgical care for common cancers at National Cancer Institute (NCI)-designated cancer centers and determined the effect of increasing payer-negotiated prices on the odds of morbidity and mortality. MATERIALS AND METHODS: A cross-sectional analysis of 63 NCI-designated cancer center websites was employed to assess variation in payer-negotiated prices. A retrospective cohort study of 15,013 Medicare beneficiaries undergoing surgery for colon, pancreas, or lung cancers at an NCI-designated cancer center between 2014 and 2018 was conducted to determine the relationship between payer-negotiated prices and clinical outcomes. The primary outcome was the effect of median payer-negotiated price on odds of a composite outcome of 30 days mortality and serious postoperative complications for each cancer cohort. RESULTS: Within-center prices differed by up to 48.8-fold, and between-center prices differed by up to 675-fold after accounting for geographic variation in costs of providing care. Among the 15,013 patients discharged from 20 different NCI-designated cancer centers, the effect of normalized median payer-negotiated price on the composite outcome was clinically negligible, but statistically significantly positive for colon [aOR 1.0094 (95% CI 1.0051-1.0138)], lung [aOR 1.0145 (1.0083-1.0206)], and pancreas [aOR 1.0080 (1.0040-1.0120)] cancer cohorts. CONCLUSIONS: Payer-negotiated prices are statistically significantly but not clinically meaningfully related to morbidity and mortality for the surgical treatment of common cancers. Higher payer-negotiated prices are likely due to factors other than clinical quality.


Assuntos
Institutos de Câncer , National Cancer Institute (U.S.) , Humanos , Estados Unidos , Estudos Retrospectivos , Feminino , Masculino , Institutos de Câncer/economia , Estudos Transversais , National Cancer Institute (U.S.)/economia , Idoso , Medicare/economia , Neoplasias Pancreáticas/cirurgia , Neoplasias Pancreáticas/economia , Neoplasias/cirurgia , Neoplasias/economia , Neoplasias Pulmonares/cirurgia , Neoplasias Pulmonares/economia , Seguimentos , Taxa de Sobrevida , Prognóstico , Complicações Pós-Operatórias/economia , Neoplasias do Colo/cirurgia , Neoplasias do Colo/economia
9.
Milbank Q ; 2024 Sep 17.
Artigo em Inglês | MEDLINE | ID: mdl-39289915

RESUMO

Policy Points Health care systems around the world rely on a range of methods to ensure the affordability of prescription drugs, including negotiating prices soon after drug approval and relying on formal clinical assessments that compare newly approved therapies with existing alternatives. The negotiation framework established under the Inflation Reduction Act is far more limited than other frameworks explored in this study. Adding elements from these frameworks could lead to more effective price negotiation in the United States. CONTEXT: In 2022, Congress passed the Inflation Reduction Act, which allowed Medicare, for the first time, to begin negotiating the prices for certain high-cost brand-name prescription drugs. Many other industrialized countries negotiate drug prices, and we sought to compare and contrast key features of the negotiation process across several health systems. We focused, in particular, on the criteria for selecting drugs for price negotiation, procedures for negotiation, factors that influence negotiated prices, and how prices are implemented. METHODS: We included four G7 countries in our analysis (Canada, France, Germany, and the United Kingdom [England]), two Benelux countries (Belgium and the Netherlands), and one Scandinavian country (Norway) with long-established frameworks for drug price negotiation. We also analyzed the Veterans Affairs Health System in the United States. For each system, we gathered relevant legislation, government publications, and guidelines to understand negotiation frameworks, and we reached out to key drug price negotiators in each system to conduct semistructured interviews. All interviews were recorded, transcribed, and coded, and data were analyzed based on an internal assessment tool that we developed. FINDINGS: All eight systems negotiate the prices of brand-name prescription drugs soon after approval and rely on formal clinical assessments that compare newly approved drugs with existing therapies. Systems in our study differed on characteristics such as whether the body performing clinical assessments is separate from the negotiating authority, how added health benefit is assessed, whether explicit willingness-to-pay thresholds are employed, and how specific approaches for priority disease areas are taken. CONCLUSIONS: High-income countries around the world adopt different approaches to conducting price negotiations on brand-name drugs but coalesce around a set of practices that will largely be absent from the current Medicare negotiation framework. US policymakers might consider adding some of these characteristics in the future to improve negotiation outcomes.

10.
Milbank Q ; 2024 Jun 07.
Artigo em Inglês | MEDLINE | ID: mdl-38847241

RESUMO

Policy Points State Medicaid experience with value-based payment (VBP) arrangements for medical products is still relatively limited, and states face a number of challenges in designing and implementing such arrangements, particularly because of the resource-intensive nature of arrangements and data needed to support measurement of desired outcomes. A number of success factors and opportunities to support VBP arrangement efforts were identified through this study, including leveraging established venues or processes for collaboration with manufacturers, engaging external and internal partners in VBP efforts to bolster capabilities, acquiring access to new data sources, and utilizing annual renegotiation of contracts to allow for adjustments. CONTEXT: To date, uptake of value-based payment (VBP) arrangements for medical products and knowledge of their design and impact have been mainly concentrated among private payers. Interest and activity are expanding to Medicaid; however, their experiences and approaches to VBP arrangements for medical products are not well characterized. METHODS: This study sought to characterize the use of VBP arrangements for medical products among state Medicaid agencies through the use of a two-staged, mixed-methods approach. A survey and semistructured interviews were conducted to gain an understanding of state experiences with VBP arrangements for medical products. The survey and interviews were directed at senior leaders from nine states through the survey, with respondents from seven of these states additionally participating in the semistructured interviews. FINDINGS: Although experience with VBP arrangements for medical products among states varied, there were similarities across their motivations and general processes or phases employed in their design and implementation. States collectively identified a number of significant challenges to VBP arrangements, such as manufacturer engagement, outcomes measurement, and the time, expertise, and resources required to design and implement them. We outline a range of strategies to help address these gaps and make it easier for states to pursue VBP arrangements, including more direct engagement from the Center for Medicare and Medicaid Services, state-to-state peer learning and collaboration, data infrastructure and sharing, and additional research to inform fit-for-purpose VBP arrangement approaches. CONCLUSIONS: Findings from this study suggest that it may be easier for states to pursue VBP arrangements for medical products if there is greater clarity on processes employed that support design and implementation as well as effective strategies to address common challenges associated with contract negotiations. As states gain more experience, it will be important to monitor the design and implementation of common VBP arrangements to assess impact on the Medicaid program and the populations it serves.

11.
Value Health ; 27(10): 1348-1357, 2024 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-39154910

RESUMO

OBJECTIVES: By September 2024, the Centers for Medicare and Medicaid Services (CMS) will publicly report the negotiated prices (Maximum Fair Prices) for the first 10 drugs selected for price negotiation. We estimate initial price offers based on net prices, statutorily defined ceilings, and comparative effectiveness data for the 10 drugs and their therapeutic alternatives. METHODS: We utilized net prices and other price benchmarks for the 10 drugs and their therapeutic alternatives. We searched for data on comparative clinical effectiveness for the primary indications. We outlined a range of plausible initial price offers based on CMS guidance and our interpretation of regulatory intent. RESULTS: For ibrutinib and ustekinumab, statutorily defined ceiling prices will likely determine the initial price offers. The integration of net pricing and clinical evidence from comparator branded products will inform the initial price offers for apixaban, empagliflozin, etanercept, and insulin aspart. Rivaroxaban and sacubitril/valsartan have therapeutic alternatives that are generics; therefore, CMS may apply a discount to current net prices. To achieve savings in the negotiation of dapagliflozin and sitagliptin, CMS will have to leverage additional negotiation factors because statutory defined ceilings and net prices of therapeutic alternatives are similar or higher. CONCLUSIONS: This analysis sheds light on important price benchmarks and clinical evidence factors for the determination of the initial price offers. Although we were not able to simulate the offer and counter-offer process, our findings provide a transparent and systematic way to produce initial offers that are consistent with CMS guidance.


Assuntos
Benchmarking , Custos de Medicamentos , Estados Unidos , Humanos , Negociação , Centers for Medicare and Medicaid Services, U.S. , Medicare/economia , Pesquisa Comparativa da Efetividade
12.
Value Health ; 27(4): 449-457, 2024 04.
Artigo em Inglês | MEDLINE | ID: mdl-38244983

RESUMO

OBJECTIVES: The Orphan Drug Act (ODA) incentivizes drug development for rare diseases with limited sales potential. Partial orphans-drugs used to treat rare and common diseases-frequently turn into multi-billion dollar blockbusters. This study analyzes partial orphan cancer drugs' development, approval, and economics. METHODS: 170 drugs with US Food and Drug Administration approval for 455 cancer indications were identified (2000-2021). 110 full, 22 partial, and 38 non-orphan drugs were compared regarding their approval, benefits, trials, epidemiology, price, beneficiaries, and spending with data from regulatory documents, Global Burden of Disease study, and Medicare and Medicaid. RESULTS: Full orphans, relative to partial and non-orphans, were more frequently monotherapies for hematologic cancers supported by smaller single-arm trials treating diseases with a lower incidence and higher severity. The time from first to second indication approval was 1 year shorter for partial than full orphans. Full orphans offered a greater overall survival (median: 4.0 vs 2.8 vs 2.8 months, P < .001) and progression-free survival benefit (median: 5.1 vs 2.5 vs 3.6 months, P < .001). Monthly prices were higher for full and partial than non-orphan drugs (median: $17 177 vs $13 284 vs $12 457, P < .001). Beneficiaries (8790 vs 4390 vs 1730) and spending ($570 vs $305 vs $156 million) per drug were greater for partial than non-and full orphans. CONCLUSIONS: Although partial orphans' benefits, trials, and economics are more similar to non-than full orphans, they receive all of the ODA's benefits and are swiftly extended to new indications; resulting in greater spending. A maximum ODA revenue/patient threshold could limit expenditure on partial orphans.


Assuntos
Antineoplásicos , Neoplasias , Idoso , Humanos , Estados Unidos , Produção de Droga sem Interesse Comercial , United States Food and Drug Administration , Aprovação de Drogas , Medicare , Neoplasias/tratamento farmacológico , Neoplasias/epidemiologia , Preparações Farmacêuticas , Antineoplásicos/uso terapêutico
13.
Value Health ; 27(7): 978-985, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38513883

RESUMO

OBJECTIVES: This study aimed to conduct a review of existing methods used to incorporate life cycle drug pricing (LCDP) in cost-effectiveness analyses (CEAs), identify common methodological challenges, and suggest modeling approaches for prospectively implementing LCDP in CEA. METHODS: Two complementary searches were conducted in PubMed, combined with hand searching and reference mining, to identify English language full-text articles that explored (1) how drug prices change over time and (2) methods used to apply dynamic pricing in cost-effectiveness models (CEMs). Relevant articles were reviewed, and authors discussed the common methodological practices used in the literature and their associated challenges on prospectively implementing LCDP in CEMs. For each key challenge identified, we provide modeling suggestions to address the issue. RESULTS: We screened 1200 studies based on title and abstract; 117 were reviewed for eligibility, and 47 individual studies were included across both searches. Variations in prices over a product's life cycle are complex and multifactorial, and models applying LCDP in CEA varied in their methodology. We identified 4 key challenges to modeling LCDP in CEA, including how to model price trends before and after loss of exclusivity, how to capture the effect of price changes on future patient cohorts, and how to report results. CONCLUSION: Accurately quantifying the impact of LCDP requires careful consideration of multiple aspects pertaining to both the evolution of drug prices and how to reflect these in CEA. Although uncertainties remain, our findings can aid implementation and evaluation of LCDP in economic evaluations.


Assuntos
Análise Custo-Benefício , Custos de Medicamentos , Modelos Econômicos , Análise Custo-Benefício/métodos , Humanos , Anos de Vida Ajustados por Qualidade de Vida
14.
Conserv Biol ; 38(1): e14149, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-37424370

RESUMO

Oil palm is a major driver of tropical deforestation. A key intervention proposed to reduce the footprint of oil palm is intensifying production to free up spare land for nature, yet the indirect land-use implications of intensification through market forces are poorly understood. We used a spatially explicit land-rent modeling framework to characterize the supply and demand of oil palm in Indonesia under multiple yield improvement and demand elasticity scenarios and explored how shifts in market equilibria alter projections of crop expansion. Oil palm supply was sensitive to crop prices and yield improvements. Across all our scenarios, intensification raised agricultural rents and lowered the effectiveness of reductions in crop expansion. Increased yields lowered oil palm prices, but these price-drops were not sufficient to prevent further cropland expansion from increased agricultural rents under a range of price elasticities of demand. Crucially, we found that agricultural intensification might only result in land being spared when the demand relationship was highly inelastic and crop prices were very low (i.e., a 70% price reduction). Under this scenario, the extent of land spared (∼0.32 million ha) was countered by the continued establishment of new plantations (∼1.04 million ha). Oil palm intensification in Indonesia could exacerbate current pressures on its imperiled biodiversity and should be deployed with stronger spatial planning and enforcement to prevent further cropland expansion.


Cambios en el uso de suelo causados por la reacción del mercado a la intensificación de la palma aceitera en Indonesia Resumen La palma aceitera es una de las principales causas de la deforestación. Una intervención importante propuesta para reducir la huella de esta palma es la intensificación de la producción para que el suelo sobrante sea usado por la naturaleza, pero se sabe muy poco sobre las implicaciones del uso indirecto de suelo de la intensificación a través de las fuerzas del mercado. Usamos un marco de modelos de renta de suelo espacialmente explícito para caracterizar la oferta y demanda de la palma aceitera en Indonesia bajo varios escenarios de mejoras en la producción y elasticidad de demandas y exploramos cómo los cambios en el equilibrio del mercado alteran las proyecciones de la expansión agrícola. La oferta de palma aceitera fue susceptible a los precios de los cultivos y a las mejoras en la producción. La intensificación elevó la renta agrícola y redujo la efectividad de la reducción de la expansión agrícola en todos nuestros escenarios. El aumento en la producción bajó los precios de la palma, pero estas caídas no fueron suficientes para evitar la expansión agrícola a partir de las rentas agrícolas elevadas bajo un rango de elasticidad de precios de demanda. Más importante, descubrimos que la intensificación agrícola puede sólo resultar en que sobre el suelo cuando la relación de demanda casi no sea elástica y los precios de las cosechas sean muy bajos (una reducción del 70% en los precios). Bajo este escenario, la extensión de suelo sobrante (∼0.32 millones de ha) fue contrarrestado por el establecimiento continuo de nuevos sembradíos (∼1.04 millones de ha). La intensificación de la palma aceitera en Indonesia podría agravar las presiones existentes sobre su biodiversidad en peligro y debería implementarse con una mayor planeación espacial y aplicación para prevenir una expansión agrícola superior.


Assuntos
Arecaceae , Conservação dos Recursos Naturais , Indonésia , Agricultura , Biodiversidade , Arecaceae/fisiologia
15.
Environ Sci Technol ; 58(16): 7124-7132, 2024 Apr 23.
Artigo em Inglês | MEDLINE | ID: mdl-38599582

RESUMO

Often large quantities of plastics are found in compost, with price look-up stickers being a major but little-explored component in the contamination path. Stickers glued to fruit or vegetable peels usually remain attached to the organic material despite sorting processes in the composting plant. Here, we investigated the effects of industrial composting on the structural alterations of these stickers. Commercial polypropylene (PP) stickers on banana peels were added to a typical organic material mixture for processing in an industrial composting plant and successfully resampled after a prerotting (11 days) and main rotting step (25 days). Afterward, both composted and original stickers were analyzed for surface and structural changes via scanning electron microscopy, Fourier-transform infrared spectroscopy, and micro- and nano-X-ray computed tomography (CT) combined with deep learning approaches. The composting resulted in substantial surface changes and degradation in the form of microbial colonization, deformation, and occurrence of cracks in all stickers. Their pore volumes increased from 16.7% in the original sticker to 26.3% at the end of the compost process. In a similar way, the carbonyl index of the stickers increased. Micro-CT images additionally revealed structural changes in the form of large adhesions that penetrated the surface of the sticker. These changes were accompanied by delamination after 25 days of composting, thus overall hinting at the degradation of the stickers and the subsequent formation of smaller microplastic pieces.


Assuntos
Compostagem , Frutas , Plásticos , Tomografia Computadorizada por Raios X , Solo/química , Microscopia Eletrônica de Varredura , Polipropilenos/química
16.
J Am Acad Dermatol ; 90(1): 74-81, 2024 01.
Artigo em Inglês | MEDLINE | ID: mdl-37730020

RESUMO

BACKGROUND: Topical corticosteroids possess numerous generics and similar-strength substitutes. Affordability can impact obtaining the medication prescribed. OBJECTIVE: To determine recent trends in topical corticosteroid pricing and potential for cost saving. METHODS: A retrospective cross-sectional study analyzing all prescriptions dispensed for topical corticosteroids from January 1, 2017 through December 31, 2021, using a US all-payer pharmacy-claims database and commercial coupon dataset, was performed. RESULTS: Two hundred thirty-seven unique drug products (≥1 claim) were identified. Factors that predicted for higher cost (P < .05) were branded products (105% more expensive than generics) and ultrapotent class (55% more expensive than low potency) while ointments predicted for lower cost (19% less expensive than creams). Cash prices remained relatively stable, except for ultrapotent branded topical corticosteroids (63% increase). Cost savings were available for both brand-to-generic ($14.75 per unit) and generic-to-generic ($6.82 per unit) switching. Coupon prices were consistently lower than cash prices (r = 0.89). LIMITATIONS: Contracted rates through insurance plans were not included. CONCLUSIONS: Topical corticosteroid prices over the past 5 years have stabilized, the exception being branded ultrapotent corticosteroids. Savings from switching among similar-strength substitutes remain significant despite price stabilization. Coupon prices mirror the hierarchy of cash prices and can help assess real-time costs.


Assuntos
Fármacos Dermatológicos , Custos de Medicamentos , Humanos , Redução de Custos , Estudos Transversais , Estudos Retrospectivos , Sistemas Automatizados de Assistência Junto ao Leito , Corticosteroides , Medicamentos Genéricos
17.
Int J Equity Health ; 23(1): 116, 2024 Jun 05.
Artigo em Inglês | MEDLINE | ID: mdl-38840134

RESUMO

BACKGROUND: PCSK9 inhibitors are a novel class of lipid-lowering drugs that have demonstrated favorable efficacy and safety. Evolocumab and alirocumab have been added to China's National Reimbursement Drug List through the National Drug Price Negotiation (NDPN) policy. This study aims to evaluate the impact of the NDPN policy on the utilization and accessibility of these two PCSK9 inhibitors. METHODS: The procurement data of evolocumab and alirocumab were collected from 1,519 hospitals between January 2021 and December 2022. We determined the monthly availability, utilization, cost per daily defined dose (DDDc), and affordability of the two medicines. Single-group interrupted time series (ITS) analysis was performed to assess the impact of the NDPN policy on each drug, and multiple-group ITS analysis was performed to compare the differences between them. RESULTS: The NDPN policy led to a significant and sudden increase in the availability and utilization of PCSK9 inhibitors, along with a decrease in their DDDc. In the year following the policy implementation, there was an increase in the availability, utilization, and spending, and the DDDc remained stable. The affordability of PCSK9 inhibitors in China have been significantly improved, with a 92.97% reduction in out-of-pocket costs. The availability of both PCSK9 inhibitors was similar, and the DDDc of alirocumab was only $0.23 higher after the intervention. The market share of evolocumab consistently exceeded that of alirocumab. Regional disparities in utilization were observed, with higher utilization in the eastern region and a correlation with per capita disposable income. CONCLUSIONS: The NDPN policy has successfully improved the accessibility and utilization of PCSK9 inhibitors in China. However, regional disparities in utilization indicate the need for further interventions to ensure equitable medicine access.


Assuntos
Anticorpos Monoclonais Humanizados , Custos de Medicamentos , Análise de Séries Temporais Interrompida , Inibidores de PCSK9 , Humanos , China , Anticorpos Monoclonais Humanizados/uso terapêutico , Anticorpos Monoclonais Humanizados/economia , Acessibilidade aos Serviços de Saúde/estatística & dados numéricos , Anticolesterolemiantes/uso terapêutico , Anticolesterolemiantes/economia , Política de Saúde
18.
Nicotine Tob Res ; 2024 Jul 06.
Artigo em Inglês | MEDLINE | ID: mdl-38970413

RESUMO

INTRODUCTION: In recent years tobacco taxation in Spain has regressed, with its Tobacconomics tax scorecard falling from 3.9 points (out of 5) in 2014, to only 2.625 in 2020. The objective of this research is to provide a detailed analysis of the causes behind this deterioration and identify possible ways forward for reversing this trend. METHODS: A retrospective 2014-2022 analysis of manufactured cigarettes (FM) and roll-your-own tobacco (RYO) markets including tax structure/rates, affordability, retail price gaps across products, and price differentials with bordering countries. A market level simulation model to 2028 studied the impact of various tax policy scenarios on smoking prevalence, premature deaths averted, smoking intensity, product substitution, government revenue, sales, and industry profit. RESULTS: A lack of tax increases in a context of inflation and income growth during the past 8 years means FM and RYO have become 13% more affordable, with a constant differential of €2 between 20 FM and RYO sticks, and the price gap between Spain and neighbouring France increased. Modelling of two realistic reform scenarios that reduce/eliminate the price gap between FM and RYO suggest substantial increases in government revenues and up to 700,000 fewer smokers and 210,000 fewer premature deaths. CONCLUSIONS: Current European Union legislation on tobacco taxes leaves ample room for much needed tobacco tax reform. For the sake of both public health and the economy, Spain should increase its Minimum Excise Tax. This would not only save lives, but also bring much needed revenue for the government. IMPLICATIONS: The stance of Spain on tobacco taxes has deteriorated recently. This study argues that the failure of successive governments to raise minimum taxes in an inflationary context has made tobacco products more affordable, and quantifies the improvements in smoking prevalence and excise revenue that would accrue if the authorities act urgently increasing rates within realistic limits.Spain is representative of European countries where government inaction has rendered minimum tobacco taxes obsolete. Given the postponement of the revision of the European Union Tobacco Tax Directive, this study highlights the need to act unilaterally within the existing legal framework.

19.
Nicotine Tob Res ; 2024 May 25.
Artigo em Inglês | MEDLINE | ID: mdl-38795013

RESUMO

INTRODUCTION: In 2017, New York City (NYC) passed a minimum floor price law (MFPL) to raise the minimum price of a pack of cigarettes to $13.00. Evaluation of the MFPL in NYC is limited and has yet to examine its potential as a pro-equity policy. METHODS: Data (n = 20,241; pre-policy n =15,037, post-policy n =5,204) were obtained from the New York State Adult Tobacco Survey, a quarterly repeated cross-sectional survey. Using the Difference-in-Differences approach, we compared changes in reported cigarette prices, cigarette consumption, and smoking status among NYC residents before and after policy implementation to changes in the same outcomes among residents in the rest of the state (ROS) over the same period. RESULTS: For some smokers, cigarette price increased in NYC for post-policy period; moreover, prices increased more in NYC than in ROS. NYC smokers who reported higher income, more education, or White or "Other" race, reported a bigger price increase than their ROS counterparts. Cigarette consumption decreased more in the post-policy period for people in the ROS, in general and among certain groups. Everyday smoking status decreased similarly in both NYC and ROS, whereas someday smoking status decreased primarily in the ROS during the analysis period. CONCLUSIONS: Cigarette prices in NYC increased after the 2017 MFPL; these increases were greater than those occurring elsewhere in the state, suggesting the policy might be a factor in the change. However, the increases were concentrated among relatively higher priced purchases, and groups with lower smoking prevalence. Changes in smoking status and cigarette consumption did not correspond to study hypotheses. IMPLICATIONS: This study provides an empirical analysis of a real-world policy in tobacco control. It examines the potential of the MFPL in New York City as a pro-equity policy. Findings extend the current MFPL literature and suggest that they may be able to raise cigarette prices for some purchases, but also may have a limited impact on smoking behaviors.

20.
Health Econ ; 2024 Sep 18.
Artigo em Inglês | MEDLINE | ID: mdl-39294854

RESUMO

Age is one of the most relevant observable risk attributes in determining the value of health insurance premiums. Empirical evidence indicates that the cost of health insurance is the leading cause of contract switching, which can compromise access to healthcare services and potentially result in treatment discontinuities. Using data from a Health Maintenance Organization in the Southern region of Brazil, we examined the effect of health plan price readjustment resulting from changes in the beneficiary's age group on disenrollment or switches to a more limited coverage plan. The estimates were obtained using the method of regression discontinuity. The main findings indicate that for age group transitions at 59 years old, the price readjustment effect led to an increase in contract cancellations and switching to cheaper plans. These findings highlight that an important consequence of the difference in premium sensitivity among age groups is that the exit of individuals from the health insurance sector is selective in age. The results of this paper can support policymaking to improve access to health insurance.

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