Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 306
Filtrar
Mais filtros

Tipo de documento
Intervalo de ano de publicação
1.
J Health Care Chaplain ; : 1-17, 2024 Jun 20.
Artigo em Inglês | MEDLINE | ID: mdl-38900925

RESUMO

Palliative care chaplains conduct spiritual assessments for those within their care. This narrative review examined the literature concerning existing spiritual assessment models developed or designated for palliative care chaplain use. The literature review was performed using four databases, including a hand search of references due to the variability of keywords used within the spiritual care literature. Five spiritual assessment models were identified. The analysis of the models focused on three areas: (1) Foundational basis, (2) Spiritual needs, and (3) Structural frameworks. Published spiritual assessment models for palliative care chaplain use are variable in how each one was formed, how each tool describes and structures spiritual care needs, and how the models are implemented within their respective contexts. The PC-7 advances the field, especially through its mixed methods approach. Future validation and reliability research is needed as well as investigations concerning which models are taught by chaplain educators and used by palliative care chaplains.

2.
Health Aff (Millwood) ; 43(6): 856-863, 2024 06.
Artigo em Inglês | MEDLINE | ID: mdl-38830159

RESUMO

Indiana has a business-friendly environment, but historical underinvestment in public health has yielded poor health outcomes. In 2023, when trust in governmental public health was strained nationwide, Indiana increased public health spending by 1,500 percent. In this article, we explain how Indiana achieved this unprecedented legislative victory for public health, describing the context, approach, and lessons learned. Specifically, an Indiana University report linking economic vitality and overall health sparked the creation of a governor's commission charged with exploring ways to address Indiana's shortcomings. Working with the Indiana Department of Health, the commission developed multisectoral coalitions and business and government partnerships, and it maintained consistent and coordinated communication with policy makers. Lessons learned included the value of uncoupling public health from partisan narratives, appointing diverse commission membership with strategically selected cochairs, involving local leaders, and ensuring local decision-making control. We believe that Indiana's approach holds insights for other states interested in strengthening public health funding in the current era.


Assuntos
Saúde Pública , Indiana , Humanos , Política de Saúde , Investimentos em Saúde
3.
BMJ Open ; 14(4): e071036, 2024 Apr 15.
Artigo em Inglês | MEDLINE | ID: mdl-38626959

RESUMO

OBJECTIVE: Estimate the incremental costs and benefits of scaling up hypertension care in adults in 24 select countries, using three different systolic blood pressure (SBP) treatment cut-off points-≥140, ≥150 and ≥160 mm Hg. INTERVENTION: Strengthening the hypertension care cascade compared with status quo levels, with pharmacological treatment administered at different cut-points depending on the scenario. TARGET POPULATION: Adults aged 30+ in 24 low-income and middle-income countries spanning all world regions. PERSPECTIVE: Societal. TIME HORIZON: 30 years. DISCOUNT RATE: 4%. COSTING YEAR: 2020 USD. STUDY DESIGN: DATA SOURCES: Institute for Health Metrics and Evaluation's Epi Visualisations database-country-specific cardiovascular disease (CVD) incidence, prevalence and death rates. Mean SBP and prevalence-National surveys and NCD-RisC. Treatment protocols-WHO HEARTS. Treatment impact-academic literature. Costs-national and international databases. OUTCOME MEASURES: Health outcomes-averted stroke and myocardial infarction events, deaths and disability-adjusted life-years; economic outcomes-averted health expenditures, value of averted mortality and workplace productivity losses. RESULTS OF ANALYSIS: Across 24 countries, over 30 years, incremental scale-up of hypertension care for adults with SBP≥140 mm Hg led to 2.6 million averted CVD events and 1.2 million averted deaths (7% of expected CVD deaths). 68% of benefits resulted from treating those with very high SBP (≥160 mm Hg). 10 of the 12 highest-income countries projected positive net benefits at one or more treatment cut-points, compared with 3 of the 12 lowest-income countries. Treating hypertension at SBP≥160 mm Hg maximised the net economic benefit in the lowest-income countries. LIMITATIONS: The model only included a few hypertension-attributable diseases and did not account for comorbid risk factors. Modelled scenarios assumed ambitious progress on strengthening the care cascade. CONCLUSIONS: In areas where economic considerations might play an outsized role, such as very low-income countries, prioritising treatment to populations with severe hypertension can maximise benefits net of economic costs.


Assuntos
Doenças Cardiovasculares , Hipertensão , Adulto , Humanos , Pressão Sanguínea , Análise Custo-Benefício , Países em Desenvolvimento , Hipertensão/tratamento farmacológico , Hipertensão/epidemiologia
4.
J Neurosurg Spine ; 40(5): 562-569, 2024 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-38394664

RESUMO

OBJECTIVE: The impact of mental health comorbidities on outcomes after lumbar spine surgery in workers' compensation (WC) patients has not been robustly explored. The goal of this study was to examine the impact of mental health comorbidities on pain, disability, quality of life, and return to work after lumbar spine surgery in WC patients. METHODS: A nationwide, prospective surgical outcomes registry (National Neurosurgery Quality Outcomes Database [N2QOD]) was queried for all patients who underwent 1- to 4-level lumbar decompression and/or fusion from 2012 to 2021. Patients were stratified on the basis of compensation status into non-WC (25,507) and WC (1018) cohorts. Baseline demographic data, perioperative safety data, and patient-reported outcome measures were compared between groups. The WC cohort was further subdivided on the basis of mental health status into patients with anxiety and depression (n = 107) and those without anxiety and depression (n = 911). Propensity matching was used to generate parity between these subgroups, generating 214 patients (107 pairs) for analysis. Perioperative safety, facility utilization, 1-year patient-reported outcomes (back and leg pain, disability, and quality of life), and return to work were measured as a function of WC and mental health comorbidity status. RESULTS: A total of 26,525 patients (25,507 non-WC and 1018 WC) who underwent 1- to 4-level lumbar spine surgery were reviewed. WC patients were younger, healthier (lower American Society of Anesthesiologists class), more likely to be minorities, less educated, and more likely to smoke and had greater baseline back pain, disability, and quality of life compared to non-WC patients. The prevalence of anxiety and depression was similar between groups (11%). WC patients had worse outcomes for all measures and lower rates of return to work compared to non-WC patients. WC patients with anxiety and depression demonstrated even greater disparities in all outcomes. After propensity matching, WC patients with anxiety and depression continued to demonstrate significantly worse outcomes in comparison to WC patients without anxiety and depression. CONCLUSIONS: Disparities in outcomes after lumbar spine surgery in WC patients are exacerbated in patients with anxiety and depression. WC patients with mental health comorbidities receive the least benefit from lumbar spine surgery and may represent the most vulnerable subset of patients with spine pathology. Addressing mental health comorbidities preoperatively may represent an opportunity for valuable resource allocation and surgical optimization in the WC population.


Assuntos
Comorbidade , Vértebras Lombares , Qualidade de Vida , Retorno ao Trabalho , Indenização aos Trabalhadores , Humanos , Masculino , Retorno ao Trabalho/estatística & dados numéricos , Feminino , Vértebras Lombares/cirurgia , Pessoa de Meia-Idade , Adulto , Medidas de Resultados Relatados pelo Paciente , Descompressão Cirúrgica , Fusão Vertebral , Estudos Prospectivos , Saúde Mental , Depressão/epidemiologia , Depressão/psicologia , Ansiedade/epidemiologia , Ansiedade/psicologia , Pessoas com Deficiência/psicologia , Sistema de Registros
5.
J Pain Symptom Manage ; 67(5): e393-e398, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38278189

RESUMO

CONTEXT: Gender and personality may individually impact end-of-life care. Men often receive more aggressive treatments than women near death, and personality - particularly openness - may be associated with increased care utilization when it diverges from traditional treatment norms. However, research has not examined the interaction of these variables in a dyadic context. OBJECTIVES: This study examined the dyadic effects of patient gender and caregiver personality on end-of-life care. METHODS: Using data from the VOICE randomized clinical trial, the present sample consisted of patient-caregiver dyads receiving outpatient care for advanced cancer in Sacramento and Western New York. Analyses assessed whether caregiver personality was associated with gender-based differences in patient chemotherapy or emergency department/inpatient visits in the 30 days before death. Logistic regression examined the interaction between caregivers' Big Five personality dimensions and patient gender while accounting for patient and caregiver demographic and health characteristics. RESULTS: Of a total of 134 patient-caregiver dyads, 19.4% (n = 26) of patients received chemotherapy and 47.8% (n = 64) had an emergency department/inpatient visit in the 30 days before death. Results demonstrated a significant interaction between caregiver openness and patient gender on receipt of chemotherapy (odds ratio = 0.07, p = 0.006). When caregivers were less open, men were more likely to receive chemotherapy near death, whereas when caregivers were more open, women were more likely to receive chemotherapy near death. CONCLUSION: Results suggest caregiver personality characteristics, particularly openness, might disrupt gender-based treatment norms at end-of-life. Findings demonstrate that patient and caregiver factors can interact to explain patient healthcare utilization.


Assuntos
Cuidados Paliativos na Terminalidade da Vida , Assistência Terminal , Masculino , Humanos , Feminino , Cuidadores , Assistência Terminal/métodos , Personalidade , Pacientes Internados , Qualidade de Vida
6.
Environ Int ; 184: 108434, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38237506

RESUMO

Pharmaceuticals are receiving increasing attention as emerging contaminants in the aquatic environment. Herein, we investigated the occurrence of 11 antidepressants, 6 antihistamines and 4 metabolites in treated wastewater effluents, rivers, stormwater, and seawater in Hong Kong, with special focus on chirality. The average levels of ∑pharmaceuticals ranged from 0.525 to 1070 ng/L in all samples and the total annual mass load of target pharmaceuticals in the marine environment of Hong Kong was 756 kg/y. Antihistamines accounted for >80 % of ∑pharmaceuticals, with diphenhydramine and fexofenadine being predominant. The occurrence and enantiomeric profiles of brompheniramine and promethazine sulfoxide were reported in global natural waters for the first time. Among chiral pharmaceuticals, mirtazapine and fexofenadine exhibited R-preference, while others mostly exhibited S-preference, implying that the ecological risks derived from achiral data for chiral pharmaceuticals may be biased. The joint probabilistic risk assessment of fluoxetine revealed that R-fluoxetine and rac-fluoxetine presented different ecological risks from that of S-fluoxetine; Such assessment also revealed that target pharmaceuticals posed only minimal to low risks, except that diphenhydramine posed an intermediate risk. As estimated, 10 % aquatic species will be affected when the environmental level of diphenhydramine exceeds 7.40 ng/L, which was seen in 46.9 % samples. Collectively, this study highlights further investigations on the enantioselectivity of chiral pharmaceuticals, particularly on environmental behavior and ecotoxicity using local aquatic species as target organisms.


Assuntos
Fluoxetina , Terfenadina/análogos & derivados , Poluentes Químicos da Água , Fluoxetina/toxicidade , Poluentes Químicos da Água/análise , Monitoramento Ambiental , Antidepressivos , Antagonistas dos Receptores Histamínicos , Difenidramina , Medição de Risco , Rios , Preparações Farmacêuticas
7.
Mar Pollut Bull ; 199: 115897, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38128251

RESUMO

We assessed ecological quality status (EQS) of coastal waters following claims of increasing sea turtle fibro-papillomatosis (FP) infections in Kenya, a disease hypothesized to be associated with 'poor' ecological health. We established widespread phosphate (P) and silicate (Si) limitation, dissolved ammonium contamination and an increase in potential harmful algal blooming species. Variations in the EQS was established in the sites depending on the indicators used and seasons. Generally, more sites located near hotels, tidal creeks, and estuarine areas showed 'poor', and 'bad' EQS during rainy period compared to dry season. Additionally, 90.1 % of the sites in 'poor' and 'bad' EQS based on dissolved inorganic nitrogen. Low dissolved oxygen, elevated temperature, salinity and ammonium, 'poor' EQS based on DIN, and potential bio-toxin-producing phytoplankton species characterized the FP prevalent areas, specifically during the dry season suggesting environmental stress pointing to the hypothesized connection between ecological and sea turtle health.


Assuntos
Compostos de Amônio , Tartarugas , Animais , Fitoplâncton , Quênia , Nutrientes , Nitrogênio/análise , Estações do Ano , Monitoramento Ambiental
8.
Health Equity ; 7(1): 731-734, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38025656

RESUMO

The increasing availability of rapid diagnostic self-tests (RDSTs) for COVID-19 has played an important and increasing role during the pandemic. However, for many underserved communities, RDSTs potential benefits are offset by problems with usability, accuracy, and equity. Given the increased need for and interest in home testing for acute and chronic diseases, including COVID-19, this piece offers ways that regulatory agencies, federal public health agencies, and test developers should engage with diverse communities to ensure equity throughout test development, implementation, and evaluation. Such engagement will ensure maximum personal and public health benefits for current and future RDSTs under real-world conditions.

9.
JAMA Intern Med ; 183(10): 1071-1079, 2023 10 01.
Artigo em Inglês | MEDLINE | ID: mdl-37578773

RESUMO

Importance: An intensive lifestyle intervention (ILI) has been shown to improve diabetes management and physical function. These benefits could lead to better labor market outcomes, but this has not been previously studied. Objective: To estimate the association of an ILI for weight loss in type 2 diabetes with employment, earnings, and disability benefit receipt during and after the intervention. Design, Setting, and Participants: This cohort study included participants with type 2 diabetes and overweight or obesity and compared an ILI with a control condition of diabetes support and education. Data for the original trial were accrued from August 22, 2001, to September 14, 2012. Trial data were linked with Social Security Administration records to investigate whether, relative to the control group, the ILI was associated with improvements in labor market outcomes during and after the intervention period. Difference-in-differences models estimating relative changes in employment, earnings, and disability benefit receipt between the ILI and control groups were used, accounting for prerandomization differences in outcomes for linked participants. Outcome data were analyzed from July 13, 2020, to May 17, 2023. Exposure: The ILI consisted of sessions with lifestyle counselors, dieticians, exercise specialists, and behavioral therapists on a weekly basis in the first 6 months, decreasing to a monthly basis by the fourth year, designed to achieve and maintain at least 7% weight loss. The control group received group-based diabetes education sessions 3 times annually during the first 4 years, with 1 annual session thereafter. Main Outcomes and Measures: Employment and receipt of federal disability benefits (Supplemental Security Income and Social Security Disability Insurance), earnings, and disability benefit payments from 1994 through 2018. Results: A total of 3091 trial participants were linked with Social Security Administration data (60.1% of 5145 participants initially randomized and 97.0% of 3188 of participants consenting to linkage). Among the 3091 with fully linked data, 1836 (59.4%) were women, and mean (SD) age was 58.4 (6.5) years. Baseline clinical and demographic characteristics were similar between linked participants in the ILI and control groups. Employment increased by 2.9 (95% CI, 0.3-5.5) percentage points for the ILI group relative to controls (P = .03) with no significant relative change in disability benefit receipt (-0.9 [95% CI, -2.1 to 0.3] percentage points; P = .13). Conclusions and Relevance: The findings of this cohort study suggest that an ILI to prevent the progression and complications of type 2 diabetes was associated with higher levels of employment. Labor market productivity should be considered when evaluating interventions to manage chronic diseases.


Assuntos
Diabetes Mellitus Tipo 2 , Humanos , Feminino , Pessoa de Meia-Idade , Masculino , Diabetes Mellitus Tipo 2/terapia , Diabetes Mellitus Tipo 2/complicações , Estudos de Coortes , Obesidade/complicações , Estilo de Vida , Redução de Peso
10.
Front Public Health ; 11: 1215385, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37601218

RESUMO

Introduction: School-based COVID-19 testing may be an effective strategy for reducing transmission in schools and keeping schools open. The study objective was to examine community perspectives on school-based COVID-19 testing as a mitigation strategy to support safe school reopening. Methods: We conducted a qualitative study in Yakima County, an agricultural region of Washington state, where over half of residents are Hispanic/Latino. From June to July 2021, we interviewed 18 students (13 years old, on average) and 19 school employees, and conducted four focus groups (2 in Spanish, 2 in English) with 26 parents. We audio-recorded the semi-structured interviews and focus group discussions which were then transcribed. We used an inductive, constant comparison approach to code the transcripts and conducted a thematic analysis to generate themes. Results: We identified four main themes. Students, parents, and school employees desired a return to in-person learning (Theme 1). Schools implemented numerous COVID-19 mitigation strategies (e.g., masking) to facilitate a safe return to school but felt that adding testing would not be feasible due to a lack of resources and overworked staff (Theme 2). Parents and school employees' familiarity with COVID-19 testing procedures influenced their support for testing (Theme 3). Parents and school employees felt there were inadequate resources for individuals who test positive for COVID-19 (Theme 4). Discussion: Schools require adequate resources and medical personnel to implement COVID-19 testing. Individuals also need resources after testing positive, including physical space to isolate, financial resources for those without paid time off, and delivery of food and other necessities to households in rural communities.


Assuntos
COVID-19 , Conhecimentos, Atitudes e Prática em Saúde , Adolescente , Humanos , Agricultura , COVID-19/diagnóstico , COVID-19/prevenção & controle , Teste para COVID-19 , Emoções , Instituições Acadêmicas , População Rural , Acessibilidade aos Serviços de Saúde
11.
Cancer Discov ; 13(10): 2192-2211, 2023 10 05.
Artigo em Inglês | MEDLINE | ID: mdl-37489084

RESUMO

In colorectal cancers, the tumor microenvironment plays a key role in prognosis and therapy efficacy. Patient-derived tumor organoids (PDTO) show enormous potential for preclinical testing; however, cultured tumor cells lose important characteristics, including the consensus molecular subtypes (CMS). To better reflect the cellular heterogeneity, we established the colorectal cancer organoid-stroma biobank of matched PDTOs and cancer-associated fibroblasts (CAF) from 30 patients. Context-specific phenotyping showed that xenotransplantation or coculture with CAFs improves the transcriptomic fidelity and instructs subtype-specific stromal gene expression. Furthermore, functional profiling in coculture exposed CMS4-specific therapeutic resistance to gefitinib and SN-38 and prognostic expression signatures. Chemogenomic library screening identified patient- and therapy-dependent mechanisms of stromal resistance including MET as a common target. Our results demonstrate that colorectal cancer phenotypes are encrypted in the cancer epithelium in a plastic fashion that strongly depends on the context. Consequently, CAFs are essential for a faithful representation of molecular subtypes and therapy responses ex vivo. SIGNIFICANCE: Systematic characterization of the organoid-stroma biobank provides a resource for context dependency in colorectal cancer. We demonstrate a colorectal cancer subtype memory of PDTOs that is independent of specific driver mutations. Our data underscore the importance of functional profiling in cocultures for improved preclinical testing and identification of stromal resistance mechanisms. This article is featured in Selected Articles from This Issue, p. 2109.


Assuntos
Fibroblastos Associados a Câncer , Neoplasias Colorretais , Humanos , Bancos de Espécimes Biológicos , Neoplasias Colorretais/tratamento farmacológico , Neoplasias Colorretais/genética , Neoplasias Colorretais/metabolismo , Células Tumorais Cultivadas , Fibroblastos Associados a Câncer/metabolismo , Organoides/patologia , Microambiente Tumoral/genética
12.
J Neurosurg Spine ; 39(6): 822-830, 2023 12 01.
Artigo em Inglês | MEDLINE | ID: mdl-37503915

RESUMO

OBJECTIVE: Patients with workers' compensation (WC) claims are reported to demonstrate poorer surgical outcomes after lumbar spine surgery. However, outcomes after anterior cervical discectomy and fusion (ACDF) in WC patients remain debatable. The authors aimed to compare outcomes between a propensity score-matched population of WC and non-WC patients who underwent ACDF. METHODS: Patients who underwent 1- to 4-level ACDF were retrospectively reviewed from the prospectively maintained Quality Outcomes Database (QOD). After propensity score matching, 1-year patient satisfaction, physical disability (Neck Disability Index [NDI]), pain (visual analog scale [VAS]), EQ-5D, and return to work were compared between WC and non-WC cohorts. RESULTS: A total of 9957 patients were included (9610 non-WC and 347 WC patients). Patients in the WC cohort were significantly younger (50 ± 9.1 vs 56 ± 11.4 years, p < 0.001), less educated, and were more frequently male, non-Caucasian, and active smokers (29.1% vs 18.1%, p < 0.001), with greater baseline VAS and NDI scores and poorer quality of life (p < 0.001). One-year postoperative improvements in VAS, NDI, EQ-5D, and return-to-work rates and satisfaction were all significantly worse for WC compared with non-WC patients. After adjusting for baseline differences via propensity score matching, WC versus non-WC patients continued to demonstrate worse 3- and 12-month VAS neck pain and NDI (p = 0.010), satisfaction (χ2 = 4.03, p = 0.045), and delayed return to work (9.3 vs 5.7 weeks, p < 0.001). CONCLUSIONS: WC status was associated with greater 1-year residual disability and axial pain along with delayed return to work, without any difference in quality of life despite having fewer comorbidities and being a younger population. Further studies are needed to determine the societal impact that WC claims have on healthcare delivery in the setting of ACDF.


Assuntos
Fusão Vertebral , Indenização aos Trabalhadores , Humanos , Masculino , Retorno ao Trabalho , Resultado do Tratamento , Estudos Retrospectivos , Qualidade de Vida , Pontuação de Propensão , Estudos Prospectivos , Discotomia , Cervicalgia/cirurgia , Vértebras Cervicais/cirurgia
13.
Magn Reson Med ; 90(5): 1859-1873, 2023 11.
Artigo em Inglês | MEDLINE | ID: mdl-37427533

RESUMO

PURPOSE: To introduce a method of inducing Bloch-Siegert shift and magnetization Transfer Simultaneously (BTS) and demonstrate its utilization for measuring binary spin-bath model parameters free pool spin-lattice relaxation ( T 1 F $$ {T}_1^{\mathrm{F}} $$ ), macromolecular fraction ( f $$ f $$ ), magnetization exchange rate ( k F $$ {k}_{\mathrm{F}} $$ ) and local transmit field ( B 1 + $$ {B}_1^{+} $$ ). THEORY AND METHODS: Bloch-Siegert shift and magnetization transfer is simultaneously induced through the application of off-resonance irradiation in between excitation and acquisition of an RF-spoiled gradient-echo scheme. Applying the binary spin-bath model, an analytical signal equation is derived and verified through Bloch simulations. Monte Carlo simulations were performed to analyze the method's performance. The estimation of the binary spin-bath parameters with B 1 + $$ {B}_1^{+} $$ compensation was further investigated through experiments, both ex vivo and in vivo. RESULTS: Comparing BTS with existing methods, simulations showed that existing methods can significantly bias T 1 $$ {T}_1 $$ estimation when not accounting for transmit B 1 $$ {B}_1 $$ heterogeneity and MT effects that are present. Phantom experiments further showed that the degree of this bias increases with increasing macromolecular proton fraction. Multi-parameter fit results from an in vivo brain study generated values in agreement with previous literature. Based on these studies, we confirmed that BTS is a robust method for estimating the binary spin-bath parameters in macromolecule-rich environments, even in the presence of B 1 + $$ {B}_1^{+} $$ inhomogeneity. CONCLUSION: A method of estimating Bloch-Siegert shift and magnetization transfer effect has been developed and validated. Both simulations and experiments confirmed that BTS can estimate spin-bath parameters ( T 1 F $$ {T}_1^{\mathrm{F}} $$ , f $$ f $$ , k F $$ {k}_{\mathrm{F}} $$ ) that are free from B 1 + $$ {B}_1^{+} $$ bias.


Assuntos
Encéfalo , Imageamento por Ressonância Magnética , Imageamento por Ressonância Magnética/métodos , Encéfalo/diagnóstico por imagem , Imagens de Fantasmas , Método de Monte Carlo , Algoritmos
14.
Environ Toxicol Chem ; 42(10): 2143-2157, 2023 10.
Artigo em Inglês | MEDLINE | ID: mdl-37341551

RESUMO

Residual concentrations of pesticides are commonly found outside the intended area of application in Ontario's surface waters. Periphyton are a vital dietary component for grazing organisms in aquatic ecosystems but can also accumulate substantial levels of pesticides from the surrounding water. Consequently, grazing aquatic organisms are likely subjected to pesticide exposure through the consumption of pesticide-contaminated periphyton. The objectives of the present study were to determine if pesticides partition into periphyton in riverine environments across southern Ontario and, if so, to determine the toxicity of pesticides in periphyton when fed to the grazing mayfly Neocloeon triangulifer. Sites with low, medium, and high pesticide exposure based on historic water quality monitoring data were selected to incorporate a pesticide exposure gradient into the study design. Artificial substrate samplers were utilized to colonize periphyton in situ, which were then analyzed for the presence of approximately 500 pesticides. The results demonstrate that periphyton are capable of accumulating pesticides in agricultural streams. A novel 7-day toxicity test method was created to investigate the effects of pesticides partitioned into periphyton when fed to N. triangulifer. Periphyton collected from the field sites were fed to N. triangulifer and survival and biomass production recorded. Survival and biomass production significantly decreased when fed periphyton colonized in streams with catchments dominated by agricultural land use (p < 0.05). However, the relationship between pesticide concentration and survival or biomass production was not consistent. Using field-colonized periphyton allowed us to assess the dietary toxicity of environmentally relevant concentrations of pesticide mixtures; however, nutrition and taxonomic composition of the periphyton may vary between sites. Environ Toxicol Chem 2023;42:2143-2157. © 2023 The Authors. Environmental Toxicology and Chemistry published by Wiley Periodicals LLC on behalf of SETAC.


Assuntos
Ephemeroptera , Perifíton , Praguicidas , Poluentes Químicos da Água , Animais , Praguicidas/toxicidade , Rios/química , Ecossistema , Poluentes Químicos da Água/toxicidade , Monitoramento Ambiental
15.
Br J Clin Pharmacol ; 89(10): 3105-3115, 2023 10.
Artigo em Inglês | MEDLINE | ID: mdl-37276579

RESUMO

AIMS: The UK Prescribing Safety Assessment was modified for use in Australia and New Zealand (ANZ) as the Prescribing Skills Assessment (PSA). We investigated the implementation, student performance and acceptability of the ANZ PSA for final-year medical students. METHODS: This study used a mixed-method approach involving student data (n = 6440) for 2017-2019 (PSA overall score and 8 domain subscores). Data were also aggregated by medical school and included student evaluation survey results. Quantitative data were analysed using descriptive and multivariate analyses. The pass rate was established by a modified Angoff method. Thematic analyses of open-ended survey comments were conducted. RESULTS: The average pass rate was slightly higher in 2017 (89%) which used a different examination to 2018 (85%) and 2019 (86%). Little difference was identified between schools for the PSA overall performance or domain subscores. There was low intercorrelation between subscores. Most students provided positive feedback about the PSA regarding the interface and clarity of questions, but an average of 35% reported insufficient time for completion. Further, 70% on average felt unprepared by their school curricula for the PSA, which is in part explained by the low prescribing experience; 69% reported completing ≤10 prescriptions during training. CONCLUSION: The ANZ PSA was associated with high pass rates and acceptability, although student preparedness was highlighted as a concern for further investigation. We demonstrate how a collaboration of medical schools can adapt a medical education assessment resource (UK PSA) as a means for fulfilling an unmet need.


Assuntos
Educação de Graduação em Medicina , Estudantes de Medicina , Humanos , Nova Zelândia , Currículo , Inquéritos e Questionários , Austrália , Competência Clínica , Faculdades de Medicina
17.
Palliat Support Care ; 21(3): 385-391, 2023 06.
Artigo em Inglês | MEDLINE | ID: mdl-37039467

RESUMO

OBJECTIVES: Latino patients have been shown to engage in advance care planning (ACP) at much lower rates than non-Latino White patients. Coping strategies, such as the use of emotional support, may differentially relate to engagement in ACP among Latino and non-Latino patients. The present study sought to examine the moderating effect of ethnicity on the relationship between the use of emotional support as a coping strategy and completion of advance directives. METHODS: The present study employed a weighted sample (Nw = 185) of Latino and non-Latino White patient participants in Coping with Cancer III, an National Institutes of Health-sponsored, multisite, longitudinal, observational cohort study of patients with advanced cancer and their informal caregivers and oncology providers designed to evaluate Latino/non-Latino disparities in ACP and end-of-life cancer care. Main and interaction effects of Latino ethnicity and use of emotional support on patient use of advance directives were estimated as odds ratios. RESULTS: Use of emotional support was associated with dramatically lower do-not-resuscitate (DNR) order completion to a greater extent among Latino as compared to non-Latino patients (interaction AOR = 0.33, p = 0.005). Interaction effects were not statistically significant for living will or health-care proxy form completion. SIGNIFICANCE OF RESULTS: Use of emotional support is associated with lower odds of completing DNRs among Latino than among non-Latino patients. Seeking and/or receiving emotional support may deter Latino patients from completing DNR orders. Research is needed to address both emotional needs and practicalities to ensure high quality end-of-life care among Latino patients with cancer.


Assuntos
Planejamento Antecipado de Cuidados , Emoções , Hispânico ou Latino , Sistemas de Apoio Psicossocial , Planejamento Antecipado de Cuidados/estatística & dados numéricos , Humanos , Masculino , Feminino , Pessoa de Meia-Idade , Idoso , Estados Unidos
18.
Discov Data ; 1(1): 4, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37038388

RESUMO

In Machine Learning, the datasets used to build models are one of the main factors limiting what these models can achieve and how good their predictive performance is. Machine Learning applications for cyber-security or computer security are numerous including cyber threat mitigation and security infrastructure enhancement through pattern recognition, real-time attack detection, and in-depth penetration testing. Therefore, for these applications in particular, the datasets used to build the models must be carefully thought to be representative of real-world data. However, because of the scarcity of labelled data and the cost of manually labelling positive examples, there is a growing corpus of literature utilizing Semi-Supervised Learning with cyber-security data repositories. In this work, we provide a comprehensive overview of publicly available data repositories and datasets used for building computer security or cyber-security systems based on Semi-Supervised Learning, where only a few labels are necessary or available for building strong models. We highlight the strengths and limitations of the data repositories and sets and provide an analysis of the performance assessment metrics used to evaluate the built models. Finally, we discuss open challenges and provide future research directions for using cyber-security datasets and evaluating models built upon them.

19.
Plants (Basel) ; 12(7)2023 Mar 24.
Artigo em Inglês | MEDLINE | ID: mdl-37050069

RESUMO

Uniform grape maturity can be sought by producers to minimise underripe and/or overripe proportions of fruit and limit any undesirable effects on wine quality. Considering that grape heterogeneity is a multifaceted phenomenon, a composite index summarising overall grape heterogeneity was developed to benefit vineyard management and harvest date decisions. A grape heterogeneity index (GHI) was constructed by aggregating the sum of absolute residuals multiplied by the range of values from measurements of total soluble solids, pH, fresh weight, total tannins, absorbance at 520 nm (red colour), 3-isobutyl-2-methoxypyrazine, and malic acid. Management of grape heterogeneity was also studied, using Cabernet Sauvignon grapes grown under four viticultural regimes (normal/low crop load, full/deficit irrigation) during the 2019/2020 and 2020/2021 seasons. Comparisons of GHI scores showed grape variability decreased throughout ripening in both vintages, then significantly increased at the harvest time point in 2020, but plateaued on sample dates nearing the harvest date in 2021. Irrigation and crop load had no effect on grape heterogeneity by the time of harvest in both vintages. Larger vine yield, leaf area index, and pruning weight significantly increased GHI score early in ripening, but no significant relationship was found at the time of harvest. Differences in the Ravaz index, normalised difference vegetation index, and soil electrical conductivity did not significantly change the GHI score.

20.
J Affect Disord ; 330: 173-179, 2023 06 01.
Artigo em Inglês | MEDLINE | ID: mdl-36868390

RESUMO

INTRODUCTION: Depression and diabetes commonly co-exist, however the temporal trends in the bidirectional association of both diseases in different sociodemographic setting has not been explored. We investigated the trends in prevalence and likelihood of having either depression or type 2 diabetes (T2DM) in African American (AA, or black) and White Caucasians (WC, or white). METHODS: In this nationwide population-based study, the US Centricity Electronic Medical Records was used to establish cohorts of >2.5 million adults diagnosed with either T2DM or depression between 2006 and 2017. Logistic regression models were used to investigate ethnic differences in: (a) subsequent probability of depression in individuals with T2DM; and (b) subsequent probability of T2DM in individuals with depression; stratified by age and sex. RESULTS: A total of 920,771 (15 % black) adults were identified with T2DM and 1,801,679 (10 % black) with depression. AA diagnosed with T2DM were much younger (56 vs. 60 years) and had significantly lower prevalence of depression (17 vs. 28 %). AA diagnosed with depression were slightly younger (46 vs. 48 years) and had significantly higher prevalence of T2DM (21 % vs. 14 %). The prevalence of depression in T2DM increased from 12 % (11, 14) to 23 % (20, 23) in black and 26 (25, 26) to 32 (32, 33) in white. Depressive AA above 50 years recorded the highest adjusted probability of T2DM (men: 6.3 % (5.8, 7.0), women: 6.3 % (5.9, 6.7)), while diabetic white women below 50 years had the highest probability of depression (20.2 % (18.6, 22.0)). No significant ethnic difference in diabetes was observed for younger adults diagnosed with depression: black 3.1 % (2.7, 3.7); white 2.5 % (2.2, 2.7). CONCLUSIONS: We have observed significant difference in depression between AA and WC recently diagnosed with diabetes consistent across different demographics. Depression in people with diabetes is increasing with significantly higher values among white women younger than 50 years.


Assuntos
Depressão , Diabetes Mellitus Tipo 2 , Adulto , Feminino , Humanos , Masculino , Negro ou Afro-Americano , Depressão/etnologia , Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/etnologia , Registros Eletrônicos de Saúde , Brancos , Disparidades nos Níveis de Saúde
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA