Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 69
Filtrar
Mais filtros

Base de dados
Tipo de documento
Intervalo de ano de publicação
1.
Molecules ; 28(4)2023 Feb 05.
Artigo em Inglês | MEDLINE | ID: mdl-36838522

RESUMO

The Vaccinium L. (Ericaceae) genus consists of a globally widespread and diverse genus of around 4250 species, of which the most valuable is the Vaccinioidae subfamily. The current review focuses on the distribution, history, bioactive compounds, and health-related effects of three species: cranberry, blueberry, and huckleberry. Several studies highlight that the consumption of Vaccinium spp. presents numerous beneficial health-related outcomes, including antioxidant, antimicrobial, anti-inflammatory, and protective effects against diabetes, obesity, cancer, neurodegenerative diseases and cardiovascular disorders. These plants' prevalence and commercial value have enhanced in the past several years; thus, the generated by-products have also increased. Consequently, the identified phenolic compounds found in the discarded leaves of these plants are also presented, and their impact on health and economic value is discussed. The main bioactive compounds identified in this genus belong to anthocyanins (cyanidin, malvidin, and delphinidin), flavonoids (quercetin, isoquercetin, and astragalin), phenolic acids (gallic, p-Coumaric, cinnamic, syringic, ferulic, and caffeic acids), and iridoids.


Assuntos
Mirtilos Azuis (Planta) , Ericaceae , Plantas Medicinais , Vaccinium , Vaccinium/química , Antocianinas/farmacologia , Ericaceae/química , Antioxidantes/química , Mirtilos Azuis (Planta)/química , Extratos Vegetais/química
2.
Medicina (Kaunas) ; 60(1)2023 Dec 25.
Artigo em Inglês | MEDLINE | ID: mdl-38256299

RESUMO

Background and Objectives: The risk of developing cardiovascular diseases (CVD) in patients suffering from rheumatoid arthritis (RA) is two times higher compared to the general population. The objective of this retrospective study was to determine which cardiovascular complications can appear in men vs. women with rheumatoid arthritis. Early diagnosis and initiation of therapeutic measures to reduce the progression rate of rheumatoid arthritis, while also maintaining an active lifestyle, are the most important problems in young patients. Materials and Methods: We included a number of 200 patients, divided into two groups according to gender (124 women and 76 men) with rheumatoid arthritis, presenting various stages of disease concomitant with cardiovascular complications. We assessed traditional and non-traditional risk factors, as well as electrocardiographic and echocardiographic findings in both groups. Results: All patients presented an atherogenic coefficient over two, indicating a significant risk of atherogenesis. Men had elevated levels of total cholesterol compared with women (≥200 mg/dL; 77.6%-men vs. 25.8%-women, p < 0.001). The participants presented cardiac arrhythmias, especially in the active stage of RA. Women had an increased risk of atrial fibrillation by 2.308 times compared to men (p = 0.020). One of the most important complications found in young women was pulmonary arterial hypertension (p = 0.007). Conclusions: In daily clinical practice, the screening of RA is carried out in sufficiently. This disease is often undiagnosed, and the risk factors remain unassessed. As a result, RA patients continue to present an increased risk of developing CVD.


Assuntos
Artrite Reumatoide , Fibrilação Atrial , Masculino , Humanos , Feminino , Prevalência , Estudos Retrospectivos , Comorbidade , Artrite Reumatoide/complicações , Artrite Reumatoide/epidemiologia
3.
Value Health ; 25(3): 385-389, 2022 03.
Artigo em Inglês | MEDLINE | ID: mdl-35227450

RESUMO

OBJECTIVES: Evidence-informed priority setting, in particular cost-effectiveness analysis (CEA), can help target resources better to achieve universal health coverage. Central to the application of CEA is the use of a cost-effectiveness threshold. We add to the literature by looking at what thresholds have been used in published CEA and the proportion of interventions found to be cost-effective, by type of threshold. METHODS: We identified CEA studies in low- and middle-income countries from the Global Health Cost-Effectiveness Analysis Registry that were published between January 1, 2015, and January 6, 2020. We extracted data on the country of focus, type of interventions under consideration, funder, threshold used, and recommendations. RESULTS: A total of 230 studies with a total 713 interventions were included in this review; 1 to 3× gross domestic product (GDP) per capita was the most common type of threshold used in judging cost-effectiveness (84.3%). Approximately a third of studies (34.2%) using 1 to 3× GDP per capita applied a threshold at 3× GDP per capita. We have found that no study used locally developed thresholds. We found that 79.3% of interventions received a recommendation as "cost-effective" and that 85.9% of studies had at least 1 intervention that was considered cost-effective. The use of 1 to 3× GDP per capita led to a higher proportion of study interventions being judged as cost-effective compared with other types of thresholds. CONCLUSIONS: Despite the wide concerns about the use of 1 to 3× GDP per capita, this threshold is still widely used in the literature. Using this threshold leads to more interventions being recommended as "cost-effective." This study further explore alternatives to the 1 to 3× GDP as a decision rule.


Assuntos
Análise Custo-Benefício/métodos , Países em Desenvolvimento , Anos de Vida Ajustados por Deficiência , Produto Interno Bruto , Humanos , Organização Mundial da Saúde
4.
Molecules ; 27(22)2022 Nov 17.
Artigo em Inglês | MEDLINE | ID: mdl-36432076

RESUMO

Polyphenols of plant origin are a broad family of secondary metabolites that range from basic phenolic acids to more complex compounds such as stilbenes, flavonoids, and tannins, all of which have several phenol units in their structure. Considerable health benefits, such as having prebiotic potential and cardio-protective and weight control effects, have been linked to diets based on polyphenol-enriched foods and plant-based products, indicating the potential role of these substances in the prevention or treatment of numerous pathologies. The most representative phenolic compounds in apple pomace are phloridzin, chlorogenic acid, and epicatechin, with major health implications in diabetes, cancer, and cardiovascular and neurocognitive diseases. The cereal byproducts are rich in flavonoids (cyanidin 3-glucoside) and phenolic acids (ferulic acid), all with significant results in reducing the incidence of noncommunicable diseases. Quercetin, naringenin, and rutin are the predominant phenolic molecules in tomato by-products, having important antioxidant and antimicrobial activities. The present understanding of the functionality of polyphenols in health outcomes, specifically, noncommunicable illnesses, is summarized in this review, focusing on the applicability of this evidence in three extensive agrifood industries (apple, cereal, and tomato processing). Moreover, the reintegration of by-products into the food chain via functional food products and personalized nutrition (e.g., 3D food printing) is detailed, supporting a novel direction to be explored within the circular economy concept.


Assuntos
Malus , Solanum lycopersicum , Polifenóis/análise , Solanum lycopersicum/química , Grão Comestível , Frutas/química , Fenóis/análise , Flavonoides/análise
5.
Lancet Oncol ; 21(5): 637-644, 2020 05.
Artigo em Inglês | MEDLINE | ID: mdl-32359488

RESUMO

BACKGROUND: Cancer represents a substantial health burden for refugees and host countries. However, no reliable data on the costs of cancer care for refugees are available, which limits the planning of official development assistance in humanitarian settings. We aimed to model the direct costs of cancer care among Syrian refugee populations residing in Jordan, Lebanon, and Turkey. METHODS: In this population-based modelling study, direct cost per capita and per incident case for cancer care were estimated using generalised linear models, informed by a representative dataset of cancer costs drawn from 27 EU countries. A range of regression specifications were tested, in which cancer costs were modelled using different independent variables: gross domestic product (GDP) per capita, crude or age-standardised incidence, crude or age-standardised mortality, and total host country population size. Models were compared using the Akaike information criterion. Total cancer care costs for Syrian refugees in Jordan, Lebanon, and Turkey were calculated by multiplying the estimated direct cancer care costs (per capita) by the total number of Syrian refugees, or by multiplying the estimated direct cancer costs (per incident case [crude or age-standardised]) by the number of incident cancer cases in Syrian refugee populations. All costs are expressed in 2017 euros (€). FINDINGS: Total cancer care costs for all 4·74 million Syrian refugees in Jordan, Lebanon, and Turkey in 2017 were estimated to be €140·23 million using the cost per capita approach, €79·02 million using the age-standardised incidence approach, and €33·68 million using the crude incidence approach. Under the lowest estimation, and with GDP and total country population as model predictors, the financial burden of cancer care was highest for Turkey (€25·18 million), followed by Lebanon (€6·40 million), and then Jordan (€2·09 million). INTERPRETATION: Cancer among the Syrian refugee population represents a substantial financial burden for host countries and humanitarian agencies, such as the UN Refugee Agency. New ways to provide financial assistance need to be found and must be coupled with clear, prioritised pathways and models of care for refugees with cancer. FUNDING: UK Research and Innovation Global Challenges Research Fund: Research for Health in Conflict-Middle East and North Africa region (R4HC-MENA).


Assuntos
Efeitos Psicossociais da Doença , Neoplasias/economia , Aceitação pelo Paciente de Cuidados de Saúde , Refugiados , África do Norte/epidemiologia , Humanos , Jordânia/epidemiologia , Líbano/epidemiologia , Neoplasias/epidemiologia , Neoplasias/terapia , Síria/epidemiologia , Turquia/epidemiologia
6.
Crit Rev Biotechnol ; 40(5): 608-622, 2020 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-32299245

RESUMO

Dietary habits that include an excess of added sugars have been strongly associated with an increased risk of obesity, heart disease, diabetes, and tooth decay. With this association in view, modern food systems aim to replace added sugars with low calorie sweeteners, such as polyols. Polyols are generally not carcinogenic and do not trigger a glycemic response. Furthermore, owing to the absence of the carbonyl group, they are more stable compared to monosaccharides and do not participate in Maillard reactions. As such, since polyols are stable at high temperatures, and they do not brown or caramelize when heated. Therefore, polyols are widely used in the diets of hypocaloric and diabetic patients, as well as other specific cases where controlled caloric intake is required. In recent years, erythritol and mannitol have gained increased importance, especially in the food and pharmaceutical industries. In these areas, research efforts have been made to improve the productivity and yield of the two polyols, relying on biotechnological manufacturing methods. The present review highlights the recent advances in the biotechnological production of erythritol and mannitol and summarizes the benefits of using the two polyols in the food and pharmaceutical industries.


Assuntos
Biotecnologia/métodos , Eritritol/biossíntese , Manitol/metabolismo , Bactérias/metabolismo , Indústria Farmacêutica , Eritritol/análise , Fermentação , Indústria Alimentícia , Humanos , Manitol/análise , Redes e Vias Metabólicas , Polímeros , Edulcorantes , Leveduras/metabolismo
7.
Health Res Policy Syst ; 18(1): 99, 2020 Sep 03.
Artigo em Inglês | MEDLINE | ID: mdl-32883285

RESUMO

BACKGROUND: Capacity for health economics analysis and research is indispensable for evidence-informed allocations of scarce health resources; however, little is known about the experience and capacity strengthening preferences of academics and practitioners in the Eastern Mediterranean region. This study aimed to assess the needs for strengthening health economics capacity in Jordan, Lebanon, the occupied Palestinian territories and Turkey as part of the Research for Health in Conflict in the Middle East and North Africa (R4HC) project. METHODS: We combined a bibliometric analysis of health economics outputs based on a literature search conducted across seven databases with an online survey of academic researchers and non-academic practitioners. The records included in the bibliometric analysis were original studies and reviews with an explicit economic outcome related to health, disease or disability, had at least one author in Jordan, Lebanon, Palestine or Turkey, and were published between January 2014 and December 2018. Two types of analyses were conducted using VOSviewer software, namely keyword co-occurrence and co-publication networks across countries and organisations. The online survey asked academic researchers, analysts and decision-makers - identified through the bibliometric analysis and regional professional networks - about previous exposure to and priorities for capacity development in health economics. RESULTS: Of 15,185 records returned by the literature search, 566 were included in the bibliometric analysis. Organisations in Turkey contributed more than 80% of records and had the broadest and most diverse network of collaborators, nationally and internationally. Only 1% (n = 7) of studies were collaborations between researchers in two or more different jurisdictions. Cost analysis, cost-effectiveness analysis and health system economics were the main health economics topics across the included studies. Economic evaluations, measuring the economic burden of disease and health equity, were reported by survey respondents (n = 80) as the most important areas to develop in. Short courses, learn-by-doing and mentoring from an experienced professional were, in aggregate, the most preferred learning styles. CONCLUSIONS: Existing pockets of health economic expertise in the region can constitute the base of future capacity development efforts. Building confidence toward applying specific methods and trust toward stimulating cross-jurisdiction collaborations appear essential components for sustainably developing health economics capacity.


Assuntos
Árabes , África do Norte , Ásia , Humanos , Jordânia , Líbano , Avaliação das Necessidades , Turquia
8.
Clin Infect Dis ; 69(4): 588-595, 2019 08 01.
Artigo em Inglês | MEDLINE | ID: mdl-30863852

RESUMO

BACKGROUND: Mortality from cryptoccocal meningitis remains high. The ACTA trial demonstrated that, compared with 2 weeks of amphotericin B (AmB) plus flucystosine (5FC), 1 week of AmB and 5FC was associated with lower mortality and 2 weeks of oral flucanozole (FLU) plus 5FC was non-inferior. Here, we assess the cost-effectiveness of these different treatment courses. METHODS: Participants were randomized in a ratio of 2:1:1:1:1 to 2 weeks of oral 5FC and FLU, 1 week of AmB and FLU, 1 week of AmB and 5FC, 2 weeks of AmB and FLU, or 2 weeks of AmB and 5FC in Malawi, Zambia, Cameroon, and Tanzania. Data on individual resource use and health outcomes were collected. Cost-effectiveness was measured as incremental costs per life-year saved, and non-parametric bootstrapping was done. RESULTS: Total costs per patient were US $1442 for 2 weeks of oral FLU and 5FC, $1763 for 1 week of AmB and FLU, $1861 for 1 week of AmB and 5FC, $2125 for 2 weeks of AmB and FLU, and $2285 for 2 weeks of AmB and 5FC. Compared to 2 weeks of AmB and 5FC, 1 week of AmB and 5FC was less costly and more effective and 2 weeks of oral FLU and 5FC was less costly and as effective. The incremental cost-effectiveness ratio for 1 week of AmB and 5FC versus oral FLU and 5FC was US $208 (95% confidence interval $91-1210) per life-year saved. CLINICAL TRIALS REGISTRATION: ISRCTN45035509. CONCLUSIONS: Both 1 week of AmB and 5FC and 2 weeks of Oral FLU and 5FC are cost-effective treatments.


Assuntos
Antifúngicos , Meningite Criptocócica , África Subsaariana , Antifúngicos/economia , Antifúngicos/uso terapêutico , Flucitosina/economia , Flucitosina/uso terapêutico , Custos de Cuidados de Saúde/estatística & dados numéricos , Humanos , Meningite Criptocócica/diagnóstico , Meningite Criptocócica/economia , Meningite Criptocócica/epidemiologia , Meningite Criptocócica/terapia
9.
Lancet ; 391(10134): 2047-2058, 2018 05 19.
Artigo em Inglês | MEDLINE | ID: mdl-29627161

RESUMO

The economic burden on households of non-communicable diseases (NCDs), including cardiovascular diseases, cancer, respiratory diseases, and diabetes, poses major challenges to global poverty alleviation efforts. For patients with NCDs, being uninsured is associated with 2-7-fold higher odds of catastrophic levels of out-of-pocket costs; however, the protection offered by health insurance is often incomplete. To enable coverage of the predictable and long-term costs of treatment, national programmes to extend financial protection should be based on schemes that entail compulsory enrolment or be financed through taxation. Priority should be given to eliminating financial barriers to the uptake of and adherence to interventions that are cost-effective and are designed to help the poor. In concert with programmes to strengthen national health systems and governance arrangements, comprehensive financial protection against the growing burden of NCDs is crucial in meeting the UN's Sustainable Development Goals.


Assuntos
Financiamento Pessoal/economia , Programas Nacionais de Saúde/economia , Doenças não Transmissíveis/economia , Características da Família , Gastos em Saúde , Humanos , Seguro Saúde/economia , Seguro Saúde/estatística & dados numéricos , Pessoas sem Cobertura de Seguro de Saúde , Doenças não Transmissíveis/prevenção & controle
10.
BMC Public Health ; 18(1): 975, 2018 08 06.
Artigo em Inglês | MEDLINE | ID: mdl-30081871

RESUMO

BACKGROUND: The evidence on the economic burden of cardiovascular disease (CVD) in low- and middle- income countries (LMICs) remains scarce. We conducted a comprehensive systematic review to establish the magnitude and knowledge gaps in relation to the economic burden of CVD and hypertension on households, health systems and the society. METHODS: We included studies using primary or secondary data to produce original economic estimates of the impact of CVD. We searched sixteen electronic databases from 1990 onwards without language restrictions. We appraised the quality of included studies using a seven-question assessment tool. RESULTS: Eighty-three studies met the inclusion criteria, most of which were single centre retrospective cost studies conducted in secondary care settings. Studies in China, Brazil, India and Mexico contributed together 50% of the total number of economic estimates identified. The quality of the included studies was generally low. Reporting transparency, particularly for cost data sources and results, was poor. The costs per episode for hypertension and generic CVD were fairly homogeneous across studies; ranging between $500 and $1500. In contrast, for coronary heart disease (CHD) and stroke cost estimates were generally higher and more heterogeneous, with several estimates in excess of $5000 per episode. The economic perspective and scope of the study appeared to impact cost estimates for hypertension and generic CVD considerably less than estimates for stroke and CHD. Most studies reported monthly costs for hypertension treatment around $22. Average monthly treatment costs for stroke and CHD ranged between $300 and $1000, however variability across estimates was high. In most LMICs both the annual cost of care and the cost of an acute episode exceed many times the total health expenditure per capita. CONCLUSIONS: The existing evidence on the economic burden of CVD in LMICs does not appear aligned with policy priorities in terms of research volume, pathologies studied and methodological quality. Not only is more economic research needed to fill the existing gaps, but research quality needs to be drastically improved. More broadly, national-level studies with appropriate sample sizes and adequate incorporation of indirect costs need to replace small-scale, institutional, retrospective cost studies.


Assuntos
Doenças Cardiovasculares/economia , Efeitos Psicossociais da Doença , Países em Desenvolvimento , Saúde Global/economia , Custos de Cuidados de Saúde , Gastos em Saúde , Hipertensão/economia , Doenças Cardiovasculares/terapia , Doença das Coronárias/economia , Doença das Coronárias/terapia , Atenção à Saúde/economia , Características da Família , Humanos , Hipertensão/terapia , Renda , Pobreza , Acidente Vascular Cerebral/economia , Acidente Vascular Cerebral/terapia
11.
JAMA ; 329(6): 449-450, 2023 02 14.
Artigo em Inglês | MEDLINE | ID: mdl-36662509

RESUMO

This Arts and Medicine feature reviews the 2019 movie Collective, which documents corruption underlying poor patient outcomes in the Romanian national health system and provides an update on the people and reform efforts featured in the film.


Assuntos
Atenção à Saúde , Instalações de Saúde , Programas Nacionais de Saúde , Atenção à Saúde/normas , Reforma dos Serviços de Saúde , Instalações de Saúde/normas , Programas Nacionais de Saúde/normas , Medicina Estatal/normas , Filmes Cinematográficos
12.
Proc Natl Acad Sci U S A ; 111(43): 15520-5, 2014 Oct 28.
Artigo em Inglês | MEDLINE | ID: mdl-25288770

RESUMO

To help reach the target of tuberculosis (TB) disease elimination by 2050, vaccine development needs to occur now. We estimated the impact and cost-effectiveness of potential TB vaccines in low- and middle-income countries using an age-structured transmission model. New vaccines were assumed to be available in 2024, to prevent active TB in all individuals, to have a 5-y to lifetime duration of protection, to have 40-80% efficacy, and to be targeted at "infants" or "adolescents/adults." Vaccine prices were tiered by income group (US $1.50-$10 per dose), and cost-effectiveness was assessed using incremental cost per disability adjusted life year (DALY) averted compared against gross national income per capita. Our results suggest that over 2024-2050, a vaccine targeted to adolescents/adults could have a greater impact than one targeted at infants. In low-income countries, a vaccine with a 10-y duration and 60% efficacy targeted at adolescents/adults could prevent 17 (95% range: 11-24) million TB cases by 2050 and could be considered cost-effective at $149 (cost saving to $387) per DALY averted. If targeted at infants, 0.89 (0.42-1.58) million TB cases could be prevented at $1,692 ($634-$4,603) per DALY averted. This profile targeted at adolescents/adults could be cost-effective at $4, $9, and $20 per dose in low-, lower-middle-, and upper-middle-income countries, respectively. Increased investments in adult-targeted TB vaccines may be warranted, even if only short duration and low efficacy vaccines are likely to be feasible, and trials among adults should be powered to detect low efficacies.


Assuntos
Análise Custo-Benefício , Países em Desenvolvimento/economia , Renda , Vacinas contra a Tuberculose/economia , Adolescente , Adulto , Calibragem , Humanos , Lactente , Modelos Econômicos , Tuberculose/economia , Tuberculose/imunologia , Tuberculose/mortalidade , Tuberculose/prevenção & controle , Incerteza
13.
Health Econ ; 25 Suppl 1: 179-92, 2016 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-26763688

RESUMO

The opportunity cost of inappropriate health policy decisions is greater in Central and Eastern European (CEE) compared with Western European (WE) countries because of poorer population health and more limited healthcare resources. Application of health technology assessment (HTA) prior to healthcare financing decisions can improve the allocative efficiency of scarce resources. However, few CEE countries have a clear roadmap for HTA implementation. Examples from high-income countries may not be directly relevant, as CEE countries cannot allocate so much financial and human resources for substantiating policy decisions with evidence. Our objective was to describe the main HTA implementation scenarios in CEE countries and summarize the most important questions related to capacity building, financing HTA research, process and organizational structure for HTA, standardization of HTA methodology, use of local data, scope of mandatory HTA, decision criteria, and international collaboration in HTA. Although HTA implementation strategies from the region can be relevant examples for other CEE countries with similar cultural environment and economic status, HTA roadmaps are not still fully transferable without taking into account country-specific aspects, such as country size, gross domestic product per capita, major social values, public health priorities, and fragmentation of healthcare financing.


Assuntos
Fortalecimento Institucional/economia , Política de Saúde/economia , Avaliação da Tecnologia Biomédica/organização & administração , Análise Custo-Benefício , Europa (Continente) , Humanos , Alocação de Recursos , Avaliação da Tecnologia Biomédica/economia
14.
Value Health ; 18(8): 1126-37, 2015 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-26686800

RESUMO

BACKGROUND: Surgical site infection (SSI) is a costly postoperative complication whose impact on patients' health-related quality of life is highly uncertain and has not been summarized to date. OBJECTIVE: The objective was to summarize the evidence base on SSI health utility values reported in patient-level studies and decision models. METHODS: A systematic review of SSI utility values reported in patient-level and decision modeling studies was carried out. Studies in which utility values for SSI were either invoked (e.g., model-based economic evaluations) or elicited (e.g., valuation exercises), or at least one non-preference-based instrument was administered to patients with SSI after open surgery were included. Mapping algorithms were used, where appropriate, to calculate utilities from primary data. Results were summarized narratively, and the quality of the utility values used in the included modeling studies was assessed. RESULTS: Of 6552 records identified in the database search, 28 studies were included in the review: 19 model-based economic evaluations and 9 patient-level studies. SSI utility decrements ranged from 0.04 to 0.48, of which 19 ranged from 0.1 to 0.3. SSI utility decrements could be calculated for three patient-level studies, and their values ranged from 0.05 (7 days postoperatively) to 0.124 (1 year postoperatively). In most modeling studies, SSI utilities were informed by authors' assumptions or by secondary sources. CONCLUSIONS: SSI may substantially affect patients' health utility and needs to be considered when modeling decision problems in surgery. The evidence base for SSI utilities is of questionable quality and skewed toward orthopedic surgery. Further research must concentrate on producing reliable estimates for patients without orthopedic problems.


Assuntos
Indicadores Básicos de Saúde , Qualidade de Vida , Infecção da Ferida Cirúrgica/economia , Infecção da Ferida Cirúrgica/psicologia , Algoritmos , Análise Custo-Benefício , Humanos , Modelos Econométricos
15.
Health Econ ; 24(4): 498-504, 2015 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-24523070

RESUMO

The paper discusses the impact of centre selection on the generalisability of randomised controlled trial (RCT)-based economic evaluations and suggests a future research agenda. The first section briefly reviews the current methods for addressing generalisability. We argue that these methods make no verifiable assumptions about how representative the recruiting centres are to the population of centres in the jurisdiction. The second section uses data from a multicentre RCT to illustrate that cost-effectiveness estimates can be influenced by the sample of recruiting centres. Finally, we propose two concepts that may advance generalisability research. First, we distinguish between the 'research space' and the 'policy space' and argue that policy makers are interested in the latter, while current methods describe the former. Second, we propose a centre-specific generalisability index used at RCT design stage to address generalisability. We conclude that future research should focus on generalisability at RCT design stage rather than on post hoc analyses.


Assuntos
Análise Custo-Benefício/métodos , Ensaios Clínicos Controlados Aleatórios como Assunto/métodos , Análise Custo-Benefício/normas , Humanos , Estudos Multicêntricos como Assunto/métodos , Seleção de Pacientes , Ensaios Clínicos Controlados Aleatórios como Assunto/normas
16.
Cost Eff Resour Alloc ; 12(1): 6, 2014 Feb 25.
Artigo em Inglês | MEDLINE | ID: mdl-24568593

RESUMO

OBJECTIVE: To estimate the cost-effectiveness of cataract surgery and refractive error/presbyopia correction in Zambia. METHODS: Primary data on costs and health related quality of life were collected in a prospective cohort study of 170 cataract and 113 refractive error/presbyopia patients recruited from three health facilities. Six months later, follow-up data were available from 77 and 41 patients who had received cataract surgery and spectacles, respectively. Costs were determined from patient interviews and micro-costing at the three health facilities. Utility values were gathered by administering the EQ-5D quality of life instrument immediately before and six months after cataract surgery or acquiring spectacles. A probabilistic state-transition model was used to generate cost-effectiveness estimates with uncertainty ranges. RESULTS: Utility values significantly improved across the patient sample after cataract surgery and acquiring spectacles. Incremental costs per Quality Adjusted Life Years gained were US$ 259 for cataract surgery and US$ 375 for refractive error correction. The probabilities of the incremental cost-effectiveness ratios being below the Zambian gross national income per capita were 95% for both cataract surgery and refractive error correction. CONCLUSION: In spite of proven cost-effectiveness, severe health system constraints are likely to hamper scaling up of the interventions.

17.
Foods ; 13(2)2024 Jan 13.
Artigo em Inglês | MEDLINE | ID: mdl-38254559

RESUMO

This investigation aimed to assess the chemical composition and biological activities of bog bilberry (Vaccinium uliginosum L.) leaves. Hydroethanolic extracts were obtained using four extraction techniques: one conventional (CE) and three alternative methods; ultrasound (UAE), microwave (MAE) and high-pressure (HPE) extractions. Spectrophotometric analysis was conducted to determine their chemical content, including the total phenolic content (TPC) and total flavonoid content (TFC). Furthermore, their antioxidative and antimicrobial properties were evaluated. HPLC (high performance liquid chromatography) analysis identified and quantified 17 phenolic compounds, with chlorogenic acid being the predominant compound, with the lowest level (37.36 ± 0.06 mg/g) for the bog bilberry leaf extract obtained by CE and the highest levels (e.g., HPE = 44.47 ± 0.08 mg/g) for the bog bilberry leaf extracts obtained by the alternative methods. Extracts obtained by HPE, UAE and MAE presented TPC values (135.75 ± 2.86 mg GAE/g; 130.52 ± 1.99 mg GAE/g; 119.23 ± 1.79 mg GAE/g) higher than those obtained by the CE method (113.07 ± 0.98 mg GAE/g). Regarding the TFC values, similar to TPC, the highest levels were registered in the extracts obtained by alternative methods (HPE = 43.16 ± 0.12 mg QE/g; MAE = 39.79 ± 0.41 mg QE/g and UAE = 33.89 ± 0.35 mg QE/g), while the CE extract registered the lowest level, 31.47 ± 0.28 mg QE/g. In the case of DPPH (1,1-diphenyl-2-picrylhydrazyl) antioxidant activity, the extracts from HPE, UAE and MAE exhibited the strongest radical scavenging capacities of 71.14%, 63.13% and 60.84%, respectively, whereas the CE extract registered only 55.37%. According to Microbiology Reader LogPhase 600 (BioTek), a common MIC value of 8.88 mg/mL was registered for all types of extracts against Staphylococcus aureus (Gram-positive bacteria) and Salmonella enterica (Gram-negative bacteria). Moreover, the alternative extraction methods (UAE, HPE) effectively inhibited the growth of Candida parapsilosis, in comparison to the lack of inhibition from the CE method. This study provides valuable insights into bog bilberry leaf extracts, reporting a comprehensive evaluation of their chemical composition and associated biological activities, with alternative extraction methods presenting greater potential for the recovery of phenolic compounds with increased biological activities than the conventional method.

18.
Diagnostics (Basel) ; 14(8)2024 Apr 12.
Artigo em Inglês | MEDLINE | ID: mdl-38667454

RESUMO

BACKGROUND AND OBJECTIVES: B-type natriuretic peptide (BNP) represents a clinical tool for the diagnosis and prognostic evaluation of acute and chronic heart failure patients. The purpose of this retrospective study was to evaluate BNP values in obese and non-obese patients with acute heart failure with preserved ejection fraction. MATERIALS AND METHODS: In this study, we enrolled 240 patients who presented to the emergency department complaining of acute shortness of breath and fatigue. The patients were divided into two groups according to their body mass index (BMI) values. The BMI was calculated as weight (kilograms) divided by height (square meters). The BNP testing was carried out in the emergency department. RESULTS: Group I included patients with a BMI of <30 kg/m2 and group II included patients with a BMI of ≥30 kg/m2. The average age of the patients was 60.05 ± 5.02 years. The patients in group II were significantly younger compared with those included in group I. Group II included a higher number of women compared to group I. Group I had fewer patients classified within New York Heart Association (NYHA) functional classes III and IV compared with group II. Echocardiography revealed an ejection fraction of ≥50% in all participants. Lower BNP levels were observed in patients from group II (median = 56, IQR = 53-67) in comparison to group I (median = 108.5, IQR = 106-112) (p < 0.001). CONCLUSIONS: Obesity and heart failure are continuously rising worldwide. In this retrospective study, we have highlighted the necessity to lower the threshold of BNP levels in obese patients with acute heart failure and preserved ejection fraction.

19.
Clin Pract ; 14(1): 344-360, 2024 Feb 12.
Artigo em Inglês | MEDLINE | ID: mdl-38391413

RESUMO

BACKGROUND AND OBJECTIVES: Atrial fibrillation (AF) is a common arrhythmia associated with various risk factors and significant morbidity and mortality. MATERIALS AND METHODS: This article presents findings from a study involving 345 patients with permanent AF. This study examined demographics, risk factors, associated pathologies, complications, and anticoagulant therapy over the course of a year. RESULTS: The results showed a slight predominance of AF in males (55%), with the highest incidence in individuals aged 75 and older (49%). Common risk factors included arterial hypertension (54%), dyslipidemia, diabetes mellitus type 2 (19.13%), and obesity (15.65%). Comorbidities such as congestive heart failure (35.6%), mitral valve regurgitation (60%), and dilated cardiomyopathy (32%) were prevalent among the patients. Major complications included congestive heart failure (32%), stroke (17%), and myocardial infarction (5%). Thromboembolic and bleeding risk assessment using CHA2DS2-VASc and HAS-BLED scores demonstrated a high thromboembolic risk in all patients. The majority of patients were receiving novel oral anticoagulants (NOACs) before admission (73%), while NOACs were also the most prescribed antithrombotic therapy at discharge (61%). CONCLUSIONS: This study highlights the importance of risk factor management and appropriate anticoagulant therapy in patients with AF, to reduce complications and improve outcomes. The results support the importance of tailored therapeutic schemes, for optimal care of patients with AF.

SELEÇÃO DE REFERÊNCIAS
Detalhe da pesquisa