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1.
Bull World Health Organ ; 102(9): 639-649, 2024 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-39219760

RESUMO

Objective: To test the effect of proactive home visits by trained community health workers (CHWs) on child survival. Methods: We conducted a two arm, parallel, unmasked cluster-randomized trial in 137 village-clusters in rural Mali. From February 2017 to January 2020, 31 761 children enrolled at the trial start or at birth. Village-clusters received either primary care services by CHWs providing regular home visits (intervention) or by CHWs providing care at a fixed site (control). In both arms, user fees were removed and primary health centres received staffing and infrastructure improvements before trial start. Using lifetime birth histories from women aged 15-49 years surveyed annually, we estimated incidence rate ratios (IRR) for intention-to-treat and per-protocol effects on under-five mortality using Poisson regression models. Findings: Over three years, we observed 52 970 person-years (27 332 in intervention arm; 25 638 in control arm). During the trial, 909 children in the intervention arm and 827 children in the control arm died. The under-five mortality rate declined from 142.8 (95% CI: 133.3-152.9) to 56.7 (95% CI: 48.5-66.4) deaths per 1000 live births in the intervention arm; and from 154.3 (95% CI: 144.3-164.9) to 54.9 (95% CI: 45.2-64.5) deaths per 1000 live births in the control arm. Intention-to-treat (IRR: 1.02; 95% CI: 0.88-1.19) and per-protocol estimates (IRR: 1.01; 95% CI: 0.87-1.18) showed no difference between study arms. Conclusion: Though proactive home visits did not reduce under-five mortality, system-strengthening measures may have contributed to the decline in under-five mortality in both arms.


Assuntos
Mortalidade da Criança , Agentes Comunitários de Saúde , Visita Domiciliar , Humanos , Mali/epidemiologia , Agentes Comunitários de Saúde/organização & administração , Feminino , Lactente , Mortalidade da Criança/tendências , Pré-Escolar , Adolescente , Adulto , Pessoa de Meia-Idade , Masculino , Adulto Jovem , Recém-Nascido , Mortalidade Infantil , População Rural , Atenção Primária à Saúde/organização & administração
2.
Reprod Health ; 21(1): 21, 2024 Feb 07.
Artigo em Inglês | MEDLINE | ID: mdl-38321482

RESUMO

BACKGROUND: Adolescent girls and young woman (AGYW) comprise a significant proportion of new HIV infections and unintended pregnancies in sub-Saharan Africa yet face many barriers to accessing family planning and reproductive health (FPRH) information and services. Developed via human-centered design, the Malkia Klabu ("Queen Club") program aimed to facilitate access to HIV self-testing (HIVST) and FPRH information and products at privately-owned drug shops. We sought to understand barriers and facilitators to program implementation in a 4-month pilot in Tanzania. METHODS: Forty semi-structured interviews were conducted with participants in a cluster randomized trial of the Malkia Klabu program from November 2019 through March 2020, including 11 with AGYW, 26 with drug shopkeepers, and three with counselors at health facilities to whom AGYW were referred. Interviews were audio-recorded, transcribed, coded, and analyzed to identify key themes. The Consolidated Framework for Implementation Research (CFIR) was used to assess barriers and facilitators to program implementation at multiple levels. CFIR considers the outer setting (e.g., culture and systemic conditions), the inner setting where the intervention is implemented (e.g., incentives, relationships, and available resources), the individuals involved, the innovation as it relates to stakeholder needs, and the implementation process. RESULTS: The Malkia Klabu program reshaped and directed the role of drug shopkeepers as providers of information and resources rather than FPRH gatekeepers. Key implementation facilitators included the program's adaptability to a wide range of needs and stages of readiness among AGYW, ability to capitalize on AGYW social networks for driving membership, responsiveness to AGYW's need for privacy, and positive contributions to the income and community standing of drug shopkeepers. Components such as HIVST were highly acceptable to both AGYW and shopkeepers, and the introduction of the loyalty program and HIVST kits in shops opened doors to the provision of FPRH products and information, which was further facilitated by program tools such as videos, product displays, and symbol cards. Although some shopkeepers maintained beliefs that certain contraceptive methods were inappropriate for AGYW, most appeared to provide the products as part of the program. CONCLUSIONS: The Malkia Klabu intervention's success was due in part to its ability to address key motivations of both AGYW and drug shopkeepers, such as maintaining privacy and increasing access to FPRH products for AGYW and increasing business for shops. Better understanding these implementation barriers and facilitators can inform the program's future adaptation and scale-up. TRIAL REGISTRATION: clinicaltrials.gov #NCT04045912.


Adolescent girls and young women (AGYW) in sub-Saharan Africa have limited access to family planning and reproductive health products and information even though they are at greater risk of pregnancy and HIV infection. The Malkia Klabu intervention was designed with AGYW and shopkeepers from private drug shops to facilitate access to products and information through a loyalty program that included free products, prizes for purchases, educational videos, and a non-verbal system of requesting products through symbols. Qualitive interviews with AGYW, drug shop staff, and health system counselors suggested that the program helped provide greater privacy and confidence to AGYW while bringing new business to drug shops. These findings can help as the study team charts a pathway for scaling up the intervention.


Assuntos
Infecções por HIV , Adolescente , Feminino , Humanos , Anticoncepção , HIV , Autoteste , Tanzânia
3.
Proteins ; 91(2): 183-195, 2023 02.
Artigo em Inglês | MEDLINE | ID: mdl-36094321

RESUMO

Increased ability to predict protein structures is moving research focus towards understanding protein dynamics. A promising approach is to represent protein dynamics through networks and take advantage of well-developed methods from network science. Most studies build protein dynamics networks from correlation measures, an approach that only works under very specific conditions, instead of the more robust inverse approach. Thus, we apply the inverse approach to the dynamics of protein dihedral angles, a system of internal coordinates, to avoid structural alignment. Using the well-characterized adhesion protein, FimH, we show that our method identifies networks that are physically interpretable, robust, and relevant to the allosteric pathway sites. We further use our approach to detect dynamical differences, despite structural similarity, for Siglec-8 in the immune system, and the SARS-CoV-2 spike protein. Our study demonstrates that using the inverse approach to extract a network from protein dynamics yields important biophysical insights.


Assuntos
COVID-19 , Humanos , SARS-CoV-2/metabolismo , Glicoproteína da Espícula de Coronavírus/química , Proteínas/metabolismo , Ligação Proteica , Simulação de Dinâmica Molecular
4.
Philos Trans A Math Phys Eng Sci ; 381(2254): 20220177, 2023 Sep 04.
Artigo em Inglês | MEDLINE | ID: mdl-37454690

RESUMO

Transportation infrastructures, including roads, bridges, tunnels, stations, airports and subways, play fundamental roles in modern society. Engineering failures of transportation infrastructures may result in significant damage to the public. The traditional methods are to monitor, store and analyse the information during the infrastructure and material design, testing, construction, numerical simulations, evaluation, operation, maintenance and preservation, using mechanistic-based, material-based and statistics-based approaches. In recent decades, artificial intelligence (AI) has drawn the attention of many researchers and has been used as a powerful tool to understand and analyse the engineering failures in transportation infrastructure and materials. AI has the advantages of conveniently characterizing infrastructure materials in multi-scale, extracting failure information from images and cloud points, evaluating performance from the signals of sensors, predicting the long-term performance of infrastructure based on big data and optimizing infrastructure maintenance strategies, etc. In the future, AI techniques will be more effective and promising for data collection, transmission, fusion, mining and analysis, which will help engineers quickly detect, analyse and finally prevent the engineering failures of transportation infrastructure and materials. This theme issue presents the latest developments of AI in failure analysis of transportation infrastructure and materials. This article is part of the theme issue 'Artificial intelligence in failure analysis of transportation infrastructure and materials'.

5.
Philos Trans A Math Phys Eng Sci ; 381(2254): 20220176, 2023 Sep 04.
Artigo em Inglês | MEDLINE | ID: mdl-37454691

RESUMO

Studies have been initiated to investigate the potential impact of connected and automated vehicles (CAVs) on transportation infrastructure. However, most existing research only focuses on the wandering patterns of CAVs. To bridge this gap, an apple-to-apple comparison is first performed to systematically reveal the behavioural differences between the human-driven vehicle (HDV) and CAV trajectory patterns for the first time, with the data collected from the camera-based next generation simulation dataset and autonomous driving co-simulation platform, CARLA and SUMO, respectively. A gradient boosting-based ensemble learning model for pavement performance (i.e. international roughness index) prediction is then developed with the input features including three driving pattern features, namely, lateral wandering deviation, longitudinal car-following distance and driving speed, plus 20 other context variables. A total of 1707 observations is extracted from the long-term pavement performance database for model training purposes. The result indicates that the trained model can accurately predict pavement deterioration and that CAV deteriorates pavement faster than HDV by 8.1% on average. According to the sensitivity analysis, CAV deployment will create a greater impact on the younger pavements, and the rate of pavement deterioration is found to be stable under light traffic, whereas it will increase under congested traffic. This article is part of the theme issue 'Artificial intelligence in failure analysis of transportation infrastructure and materials'.

6.
Stud Fam Plann ; 54(1): 301-308, 2023 03.
Artigo em Inglês | MEDLINE | ID: mdl-36723038

RESUMO

Equating contraceptive use with programmatic success is fundamentally flawed in failing to account for whether individuals desire contraceptive use; this is problematic because nonuse can reflect empowered decision-making and use may reflect an individual's inability to refuse or discontinue a method. A rights-based approach demands respect for individuals' freedom to weigh options and choose how their desire for pregnancy prevention can be accommodated by available methods and within the context of their own personal, social, and material constraints. We offer an alternative construct, preference-aligned fertility management (PFM), that provides a more holistic indicator of whether one's contraceptive needs are met. PFM is more person-centered and informative for programming than status quo measures of unmet need, demand satisfied, and contraceptive use which define a positive outcome in relation to pregnancy risk rather than one's stated preferences. The PFM approach goes beyond other recent proposals for modifying the concept of unmet need by refraining from judgment of legitimate reasons for nonuse of contraception and offers a straightforward way to capture whether people act in line with their preferences. We conclude with discussion of how we plan to measure PFM in the Innovations for Choice and Autonomy (ICAN) study in Nigeria and Uganda.


Assuntos
Anticoncepcionais , Fertilidade , Gravidez , Feminino , Humanos , Anticoncepção/métodos , Nigéria , Uganda , Comportamento Contraceptivo , Serviços de Planejamento Familiar
7.
BMC Psychiatry ; 23(1): 223, 2023 04 03.
Artigo em Inglês | MEDLINE | ID: mdl-37013501

RESUMO

BACKGROUND: Military and veteran populations are unique in their trauma exposures, rates of mental illness and comorbidities, and response to treatments. While reviews have suggested that internet-based Cognitive Behavioral Therapy (iCBT) can be useful for treating mental health conditions, the extent to which they may be appropriate for military and veteran populations remain unclear. The goals of the current meta-analysis are to: (1) substantiate the effects of iCBT for military and veteran populations, (2) evaluate its effectiveness compared to control conditions, and (3) examine potential factors that may influence their effectiveness. METHODS: This review was completed following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) reporting and Cochrane review guidelines. The literature search was conducted using PsycInfo, Medline, Embase, and Proquest Dissertation & Theses on June 4, 2021 with no date restriction. Inclusion criteria included studies that: (1) were restricted to adult military or veteran populations, (2) incorporated iCBT as the primary treatment, and (3) evaluated mental health outcomes. Exclusion criteria included: (1) literature reviews, (2) qualitative studies, (3) study protocols, (4) studies that did not include a clinical/analogue population, and (5) studies with no measure of change on outcome variables. Two independent screeners reviewed studies for eligibility. Data was pooled and analyzed using random-effects and mixed-effects models. Study data information were extracted as the main outcomes, including study condition, sample size, and pre- and post-treatment means, standard deviations for all assessed outcomes, and target outcome. Predictor information were also extracted, and included demographics information, the types of outcomes measured, concurrent treatment, dropout rate, format, length, and delivery of intervention. RESULTS: A total of 20 studies and 91 samples of data were included in the meta-analysis. The pooled effect size showed a small but meaningful effect for iCBT, g = 0.54, SE = 0.04, 95% CI (0.45, 0.62), Z = 12.32, p < .001. These effects were heterogenous across samples, (I2 = 87.96), Q(90) = 747.62, p < .001. Predictor analyses found length of intervention and concurrent treatment to influence study variance within sampled studies, p < .05. Evaluation of iCBT on primary outcomes indicated a small but meaningful effect for PTSD and depression, while effects of iCBT on secondary outcomes found similar results with depression, p < .001. CONCLUSIONS: Findings from the meta-analysis lend support for the use of iCBT with military and veteran populations. Conditions under which iCBT may be optimized are discussed.


Assuntos
Terapia Cognitivo-Comportamental , Transtornos Mentais , Militares , Veteranos , Adulto , Humanos , Terapia Cognitivo-Comportamental/métodos , Internet
8.
Hum Resour Health ; 21(1): 67, 2023 08 21.
Artigo em Inglês | MEDLINE | ID: mdl-37605211

RESUMO

BACKGROUND: Globally, HIV, TB and malaria account for an estimated three million deaths annually. The Global Fund partnered with the World Health Organization to assist countries with health workforce planning in these areas through the development of an integrated health workforce investment impact tool. Our study illustrates the development of a user-friendly tool (with two MS Excel calculator subcomponents) that computes associations between human resources for health (HRH) investment inputs and reduced morbidity and mortality from HIV, TB, and malaria via increased coverage of effective treatment services. METHODS: We retrieved from the peer-reviewed literature quantitative estimates of the relation among HRH inputs and HRH employment and productivity. We converted these values to additional full-time-equivalent doctors, nurses and midwives (DNMs). We used log-linear regression to estimate the relation between DNMs and treatment service coverage outcomes for HIV, TB, and malaria. We then retrieved treatment effectiveness parameters from the literature to calculate lives saved due to expanded treatment coverage for HIV, TB, and malaria. After integrating these estimates into the tool, we piloted it in four countries. RESULTS: In most countries with a considerable burden of HIV, TB, and malaria, the health workforce investments include a mix of pre-service education, full remuneration of new hires, various forms of incentives and in-service training. These investments were associated with elevated HIV, TB and malaria treatment service coverage and additional lives saved. The country case studies we developed in addition, indicate the feasibility and utility of the tool for a variety of international and local actors interested in HRH planning. CONCLUSIONS: The modelled estimates developed for illustrative purposes and tested through country case studies suggest that HRH investments result in lives saved across HIV, TB, and malaria. Furthermore, findings show that attainment of high targets of specific treatment coverage indicators would require a substantially greater health workforce than what is currently available in most LMICs. The open access tool can assist with future HRH planning efforts, particularly in LMICs.


Assuntos
Infecções por HIV , Malária , Humanos , Mão de Obra em Saúde , Recursos Humanos , Malária/terapia , Avaliação de Resultados em Cuidados de Saúde , Infecções por HIV/terapia
9.
BMC Psychiatry ; 22(1): 37, 2022 01 14.
Artigo em Inglês | MEDLINE | ID: mdl-35031020

RESUMO

BACKGROUND: Military-related posttraumatic stress disorder (PTSD) is a complex diagnosis with non-linear trajectories of coping and recovery. Current approaches to the evaluation of PTSD and treatment discontinuation often rely on biomedical models that dichotomize recovery based on symptom thresholds. This approach may not sufficiently capture the complex lived experiences of Veterans and their families. To explore conceptualizations of recovery, we sought perspectives from Veterans and their partners in a pilot study to understand: 1) how Veterans nearing completion of treatment for military-related PTSD and their partners view recovery; and 2) the experience of progressing through treatment towards recovery. METHODS: We employed a concurrent mixed methods design. Nine Veterans nearing the end of their treatment at a specialized outpatient mental health clinic completed quantitative self-report tools assessing PTSD and depressive symptom severity, and an individual, semi-structured interview assessing views on their treatment and recovery processes. Veterans' partners participated in a separate interview to capture views of their partners' treatment and recovery processes. Descriptive analyses of self-report symptom severity data were interpreted alongside emergent themes arising from inductive content analysis of qualitative interviews. RESULTS: While over half of Veterans were considered "recovered" based on quantitative assessments of symptoms, individual reflections of "recovery" were not always aligned with these quantitative assessments. A persistent narrative highlighted by participants was that recovery from military-related PTSD was not viewed as a binary outcome (i.e., recovered vs. not recovered); rather, recovery was seen as a dynamic, non-linear process. Key components of the recovery process identified by participants included a positive therapeutic relationship, social support networks, and a toolkit of adaptive strategies to address PTSD symptoms. CONCLUSIONS: For participants in our study, recovery was seen as the ability to navigate ongoing issues of symptom management, re-engagement with meaningful roles and social networks, and a readiness for discontinuing intensive, specialized mental health treatment. The findings of this study highlight important considerations in balancing the practical utility of symptom severity assessments with a better understanding of the treatment discontinuation-related needs of Veterans with military-related PTSD and their families, which align with a contemporary biopsychosocial approach to recovery.


Assuntos
Atitude Frente a Saúde , Família , Transtornos de Estresse Pós-Traumáticos , Veteranos , Adaptação Psicológica , Família/psicologia , Humanos , Projetos Piloto , Pesquisa Qualitativa , Autorrelato , Transtornos de Estresse Pós-Traumáticos/psicologia , Transtornos de Estresse Pós-Traumáticos/reabilitação , Veteranos/psicologia
10.
Can J Psychiatry ; 67(6): 490-498, 2022 06.
Artigo em Inglês | MEDLINE | ID: mdl-34027706

RESUMO

OBJECTIVE: Although there is evidence of effective stigma reduction by various psychological and educational interventions, the mechanisms of change remain unclear. In this article, we examine hypothesized processes that might have mediated reductions in stigma observed among Asian men who had received in mental health promotion interventions in Greater Toronto Area, Canada. METHOD: Our sample consisted of 495 Asian men, who received either acceptance and commitment therapy (ACT; n = 133), contact-based empowerment education (CEE; n = 149), combination of ACT and CEE (n = 152), or psychoeducation (n = 61). Group differences on intervention outcomes, including stigmatizing attitudes (Community Attitudes toward the Mentally Ill), internalized stigma (Internalized Stigma of Mental Illness), valued living (Valued Living Questionnaire), and attitudes to engage in social change (Social Justice Scale) were hypothesized to be due to the impact of the different interventions and mediated by changes in specific underlying psychological processes. These process-related changes were modelled using measures of mindfulness (Freiburg Mindfulness Inventory), psychological flexibility (Acceptance and Action Questionnaire version II), and empowerment (Empowerment Scale [ES]). Their pre- and post changes were analyzed with repeated measures analysis of variance, and mediational analyses were performed. RESULTS: Findings from mediational analyses suggest that empowerment (ES) mediated a significant portion of the effects observed in reduction in stigmatizing attitudes and internalized stigma across intervention groups (t = 3.67 to 3.78 for CEE groups, and t = 4.32 to 4.56 for ACT groups). For the ACT groups, reduction in internalized stigma might also have been partly mediated by psychological flexibility, an intervention-specific psychological process. CONCLUSIONS: Results from the current study suggest that different stigma reduction interventions may be mediated by increased empowerment as a common mechanism of change, while intervention-specific mechanism of change, improved psychological flexibility through ACT, may also contribute to improvement in internalized stigma.


Assuntos
Terapia de Aceitação e Compromisso , Transtornos Mentais , Pessoas Mentalmente Doentes , Canadá , Humanos , Masculino , Transtornos Mentais/psicologia , Transtornos Mentais/terapia , Pessoas Mentalmente Doentes/psicologia , Estigma Social
11.
Ethn Health ; 27(1): 100-118, 2022 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-31339347

RESUMO

BACKGROUND: Stigma of mental illness contributes to silence, denial and delayed help seeking. Existing stigma reduction strategies seldom consider gender and cultural contexts. PURPOSE: The Strengths in Unity study was a multi-site Canadian study that engaged Asian men in three stigma reduction interventions (ACT, CEE, psychoeducation) and mobilized them as Community Mental Health Ambassadors. Our participants included both men living with or affected by mental illness (LWA) as well as community leaders (CL). This paper will: (1) describe the baseline characteristics of the Toronto participants including their sociodemographic information, mental illness stigma (CAMI and ISMI), attitudes towards social change (SJS), and intervention-related process variables (AAQ-II, VLQ, FMI, Empowerment); (2) compare the differences among these variables between LWA and CL; and (3) explore factors that may correlate with socio-economic status and mental health stigma. RESULTS: A total of 609 Asian men were recruited in Toronto, Canada. Both CL and LWA had similar scores on measures of external and internalized stigma and social change attitudes, except that LWA had more positive views about the acceptance and integration of those with mental illness into the community on the CAMI, while CL had a higher level of perceived behavioral control on the SJS. Group differences were also observed between LWA and CL in some process-related variables. Exploratory analysis suggests that younger and more educated participants had lower stigma. CONCLUSION: Our findings underscore the importance of engaging both community leaders and people with lived experience as mental health advocates to address stigma.


Assuntos
Transtornos Mentais , Saúde Mental , Povo Asiático , Canadá , Humanos , Masculino , Estigma Social
12.
Proteins ; 89(3): 276-288, 2021 03.
Artigo em Inglês | MEDLINE | ID: mdl-32989832

RESUMO

Allostery governing two conformational states is one of the proposed mechanisms for catch-bond behavior in adhesive proteins. In FimH, a catch-bond protein expressed by pathogenic bacteria, separation of two domains disrupts inhibition by the pilin domain. Thus, tensile force can induce a conformational change in the lectin domain, from an inactive state to an active state with high affinity. To better understand allosteric inhibition in two-domain FimH (H2 inactive), we use molecular dynamics simulations to study the lectin domain alone, which has high affinity (HL active), and also the lectin domain stabilized in the low-affinity conformation by an Arg-60-Pro mutation (HL mutant). Because ligand-binding induces an allostery-like conformational change in HL mutant, this more experimentally tractable version has been proposed as a "minimal model" for FimH. We find that HL mutant has larger backbone fluctuations than both H2 inactive and HL active, at the binding pocket and allosteric interdomain region. We use an internal coordinate system of dihedral angles to identify protein regions with differences in backbone and side chain dynamics beyond the putative allosteric pathway sites. By characterizing HL mutant dynamics for the first time, we provide additional insight into the transmission of allosteric information across the lectin domain and build upon structural and thermodynamic data in the literature to further support the use of HL mutant as a "minimal model." Understanding how to alter protein dynamics to prevent the allosteric conformational change may guide drug development to prevent infection by blocking FimH adhesion.


Assuntos
Adesinas de Escherichia coli , Proteínas de Fímbrias , Adesinas de Escherichia coli/química , Adesinas de Escherichia coli/genética , Adesinas de Escherichia coli/metabolismo , Sítio Alostérico , Proteínas de Fímbrias/química , Proteínas de Fímbrias/genética , Proteínas de Fímbrias/metabolismo , Simulação de Dinâmica Molecular , Mutação/genética , Conformação Proteica , Domínios Proteicos , Estabilidade Proteica , Termodinâmica
13.
J Am Chem Soc ; 143(12): 4714-4724, 2021 03 31.
Artigo em Inglês | MEDLINE | ID: mdl-33739832

RESUMO

Prodrugs engineered for preferential activation in diseased versus normal tissues offer immense potential to improve the therapeutic indexes (TIs) of preclinical and clinical-stage active pharmaceutical ingredients that either cannot be developed otherwise or whose efficacy or tolerability it is highly desirable to improve. Such approaches, however, often suffer from trial-and-error design, precluding predictive synthesis and optimization. Here, using bromodomain and extra-terminal (BET) protein inhibitors (BETi)-a class of epigenetic regulators with proven anticancer potential but clinical development hindered in large part by narrow TIs-we introduce a macromolecular prodrug platform that overcomes these challenges. Through tuning of traceless linkers appended to a "bottlebrush prodrug" scaffold, we demonstrate correlation of in vitro prodrug activation kinetics with in vivo tumor pharmacokinetics, enabling the predictive design of novel BETi prodrugs with enhanced antitumor efficacies and devoid of dose-limiting toxicities in a syngeneic triple-negative breast cancer murine model. This work may have immediate clinical implications, introducing a platform for predictive prodrug design and potentially overcoming hurdles in drug development.


Assuntos
Antineoplásicos/farmacologia , Desenho de Fármacos , Pró-Fármacos/farmacologia , Proteínas/antagonistas & inibidores , Animais , Antineoplásicos/síntese química , Antineoplásicos/química , Proliferação de Células/efeitos dos fármacos , Ensaios de Seleção de Medicamentos Antitumorais , Humanos , Substâncias Macromoleculares/síntese química , Substâncias Macromoleculares/química , Substâncias Macromoleculares/farmacologia , Neoplasias Mamárias Experimentais/tratamento farmacológico , Neoplasias Mamárias Experimentais/metabolismo , Neoplasias Mamárias Experimentais/patologia , Camundongos , Estrutura Molecular , Pró-Fármacos/síntese química , Pró-Fármacos/química , Proteínas/metabolismo
14.
Trop Med Int Health ; 26(8): 943-952, 2021 08.
Artigo em Inglês | MEDLINE | ID: mdl-33866656

RESUMO

OBJECTIVES: To identify social and structural barriers to timely utilisation of qualified providers among children under five years in a high-mortality setting, rural Mali and to analyse how utilisation varies by symptom manifestation. METHODS: Using baseline household survey data from a cluster-randomised trial, we assessed symptom patterns and healthcare trajectories of 5117 children whose mothers reported fever, diarrhoea, bloody stools, cough and/or fast breathing in the preceding two weeks. We examine associations between socio-demographic factors, symptoms and utilisation outcomes in mixed-effect logistic regressions. RESULTS: Almost half of recently ill children reported multiple symptoms (46.2%). Over half (55.9%) received any treatment, while less than one-quarter (21.7%) received care from a doctor, nurse, midwife, trained community health worker or pharmacist within 24 h of symptom onset. Distance to primary health facility, household wealth and maternal education were consistently associated with better utilisation outcomes. While children with potentially more severe symptoms such as fever and cough with fast breathing or diarrhoea with bloody stools were more likely to receive any care, they were no more likely than children with fever to receive timely care with a qualified provider. CONCLUSIONS: Even distances as short as 2-5 km significantly reduced children's likelihood of utilising healthcare relative to those within 2 km of a facility. While children with symptoms indicative of pneumonia and malaria were more likely to receive any care, suggesting mothers and caregivers recognised potentially severe illness, multiple barriers to care contributed to delays and low utilisation of qualified providers, illustrating the need for improved consideration of barriers.


Assuntos
Serviços de Saúde da Criança , Acessibilidade aos Serviços de Saúde , Mães , Aceitação pelo Paciente de Cuidados de Saúde/estatística & dados numéricos , Adulto , Pré-Escolar , Demografia , Características da Família , Feminino , Humanos , Lactente , Recém-Nascido , Masculino , Mali/epidemiologia , População Rural , Fatores Socioeconômicos , Inquéritos e Questionários
15.
Hum Resour Health ; 19(1): 55, 2021 04 26.
Artigo em Inglês | MEDLINE | ID: mdl-33902617

RESUMO

BACKGROUND: The Kingdom of Saudi Arabia (KSA), as part of its 2030 National Transformation Program, set a goal of transforming the healthcare sector to increase access to, and improve the quality and efficiency of, health services. To assist with the workforce planning component, we projected the needed number of physicians and nurses into 2030. We developed a new needs-based methodology since previous global benchmarks of health worker concentration may not apply to the KSA. METHODS: We constructed an epidemiologic "needs-based" model that takes into account the health needs of the KSA population, cost-effective treatment service delivery models, and worker productivity. This model relied heavily on up-to-date epidemiologic and workforce surveys in the KSA. We used demographic population projections to estimate the number of nurses and physicians needed to provide this core set of services into 2030. We also assessed several alternative scenarios and policy decisions related to scaling, task-shifting, and enhanced public health campaigns. RESULTS: When projected to 2030, the baseline needs-based estimate is approximately 75,000 workers (5788 physicians and 69,399 nurses). This workforce equates to 2.05 physicians and nurses per 1000 population. Alternative models based on different scenarios and policy decisions indicate that the actual needs for physicians and nurses may range from 1.64 to 3.05 per 1000 population in 2030. CONCLUSIONS: Based on our projections, the KSA will not face a needs-based health worker shortage in 2030. However, alternative model projections raise important policy and planning issues regarding various strategies the KSA may pursue in improving quality and efficiency of the existing workforce. More broadly, where country-level data are available, our needs-based strategy can serve as a useful step-by-step workforce planning tool to complement more economic demand-based workforce projections.


Assuntos
Enfermeiras e Enfermeiros , Médicos , Necessidades e Demandas de Serviços de Saúde , Humanos , Arábia Saudita , Recursos Humanos
16.
Global Health ; 17(1): 105, 2021 09 14.
Artigo em Inglês | MEDLINE | ID: mdl-34521436

RESUMO

BACKGROUND: Health workforce planning is critical for health systems to safeguard the ability to afford, train, recruit, and retain the appropriate number and mix of health workers. This balance is especially important when macroeconomic structures are also reforming. The Kingdom of Saudi Arabia is moving toward greater diversification, privatization, and resiliency; health sectorreform is a key pillar of this transition. METHODS: We used the Ministry of Health Yearbook data on the number of workers and health expenditures from 2007 to 2018 and projected health labor market supply and demand of workers through 2030, evaluated the potential shortages and surpluses, and simulated different policy scenarios to identify relevant interventions. We further focused on projections for health workers who are Saudi nationals and health worker demand within the public sector (versus the private sector) to inform national objectives of reducing dependency on foreign workers and better deploying public sector resources. RESULTS: We projected the overall health labor market to demand 9.07 physicians and nurses per 1,000 population (356,514) in 2030; the public sector will account for approximately 67% of this overall demand. Compared to a projected supply of 10.16 physicians and nurses per 1,000 population (399,354), we estimated an overall modest surplus of about 42,840 physicians and nurses in 2030. However, only about 17% of these workers are estimated to be Saudi nationals, for whom there will be a demand shortage of 287,895 workers. Among policy scenarios considered, increasing work hours had the largest effect on reducing shortages of Saudi workers, followed by bridge programs for training more nurses. Government resources can also be redirected to supporting more Saudi nurses while still ensuring adequate numbers of physicians to meet service delivery goals in 2030. CONCLUSION: Despite projected overall balance in the labor market for health workers in 2030, without policy interventions, severe gaps in the Saudi workforce will persist and limit progress toward health system resiliency in Saudi Arabia. Both supply- and demand-side policy interventions should be considered, prioritizing those that increase productivity among Saudi health workers, enhance training for nurses, and strategically redeploy financial resources toward employing these workers.


Assuntos
Mão de Obra em Saúde , Médicos , Emprego , Humanos , Arábia Saudita , Recursos Humanos
17.
AIDS Res Ther ; 18(1): 21, 2021 04 26.
Artigo em Inglês | MEDLINE | ID: mdl-33902623

RESUMO

BACKGROUND: HIV risk remains high among adolescent girls and young women (AGYW, ages 15-24) in Tanzania. Many AGYW experience stigma and provider bias at health facilities, deterring their use of HIV prevention services. Privately-owned drug shops, ubiquitous in many communities, may be an effective and accessible channel to deliver HIV prevention products to AGYW, including oral pre-exposure prophylaxis (PrEP) and the dapivirine vaginal ring. METHODS: In July-August 2019, we enrolled 26 drug shops in Shinyanga, Tanzania in an ongoing study to create "girl-friendly" drug shops where AGYW can access HIV self-testing and contraception. At baseline, all shop dispensers were given basic information about oral PrEP and the dapivirine ring and were asked about their interest in stocking each. During the next 3-5 months, we surveyed AGYW (n = 56) customers about their interest in oral PrEP and the ring. RESULTS: Among dispensers, the median age was 42 years and 77% were female. Overall, 42% of dispensers had heard of a medication for HIV prevention. Almost all dispensers reported some interest in stocking oral PrEP (92%) and the dapivirine ring (96%). Most (85%) reported they would provide oral PrEP to AGYW who requested it. Among AGYW customers, the median age was 17 years; 29% of AGYW were married or had a steady partner and 18% had children. Only 20% of AGYW had heard of a medication to prevent HIV, yet 64% and 43% expressed some interest in using oral PrEP and the dapivirine ring, respectively, after receiving information about the products. PrEP interest was higher among AGYW who were partnered and had children. CONCLUSIONS: Despite low prior awareness of PrEP among shop dispensers and AGYW, we found high levels of interest in oral PrEP and the dapivirine ring in both groups. Community-based drug shops represent a promising strategy to make HIV prevention more accessible to AGYW.


Assuntos
Fármacos Anti-HIV , Infecções por HIV , Preparações Farmacêuticas , Profilaxia Pré-Exposição , Adolescente , Adulto , Fármacos Anti-HIV/uso terapêutico , Criança , Feminino , Infecções por HIV/tratamento farmacológico , Infecções por HIV/prevenção & controle , Conhecimentos, Atitudes e Prática em Saúde , Humanos , Recém-Nascido , Pirimidinas , Tanzânia , Adulto Jovem
18.
BMC Geriatr ; 21(1): 115, 2021 02 10.
Artigo em Inglês | MEDLINE | ID: mdl-33568087

RESUMO

BACKGROUND: Emergency department (ED) care of older patients is often complex. Geriatric ED guidelines can help to meet this challenge. However, training requirements, the use of time-consuming tools for comprehensive geriatric assessment (CGA), a lack of golden standard to identify the frail patients, and the weak evidence of positive outcomes of using CGA in EDs pose barriers to introduce the guidelines. Dedicating an interprofessional team of regular ED medical and nursing staff and an older-friendly ED area can be another approach. Previous studies of geriatrician-led CGA in EDs have reported a reduced hospital admission rate. The aim of this study was to investigate whether a dedicated interprofessional emergency team also can reduce the hospital admission rate without the resources required by the formal use of CGA. METHODS: An observational pre-post study at a large adult ED, where all patients 80 years or older arriving on weekdays in the intervention period from 2016.09.26 to 2016.11.28 and the corresponding weekdays in the previous year from 2015.09.28 to 2015.11.30 were included. In the intervention period, older patients either received care in the geriatric module by the dedicated team or in the regular team modules for patients of mixed ages. In 2015, all patients received care in regular team modules. The primary outcome measure was the total hospital admission rate and the ED length of stay was the secondary outcome measure. RESULTS: We included 2377 arrivals in the intervention period, when 26.7% (N = 634) received care in the geriatric module, and 2207 arrivals in the 2015 period. The total hospital admission rate was 61.7% (N = 1466/2377) in the intervention period compared to 64.8% (N = 1431/2207) in 2015 (p = 0.03). The difference was larger for patients treated in the geriatric module, 51.1% compared to 62.1% (95% CI: 56.3 to 68.0%) for patients who would have been eligible in 2015. The ED length of stay was longer in the intervention period. CONCLUSIONS: An interprofessional team and area dedicated to older patients was associated to a lower hospital admission rate. Further studies are needed to confirm the results.


Assuntos
Serviços Médicos de Emergência , Serviço Hospitalar de Emergência , Idoso , Idoso de 80 Anos ou mais , Avaliação Geriátrica , Geriatras , Hospitais , Humanos
19.
BMC Public Health ; 21(1): 244, 2021 01 29.
Artigo em Inglês | MEDLINE | ID: mdl-33514345

RESUMO

BACKGROUND: Rural parts of Mali carry a disproportionate burden of the country's high under-five mortality rate. A range of household factors are associated with poor under-five health in resource-limited settings. However, it is unknown which most influence the under-five mortality rate in rural Mali. We aimed to describe household factors associated with under-five mortality in Bankass, a remote region in central Mali. METHODS: We analysed baseline household survey data from a trial being conducted in Bankass. The survey was administered to households between December 2016 and January 2017. Under-five deaths in the five years prior to baseline were documented along with detailed information on household factors and women's birth histories. Factors associated with under-five mortality were analysed using Cox regression. RESULTS: Our study population comprised of 17,408 under-five children from 8322 households. In the five years prior to baseline, the under-five mortality rate was 152.6 per 1000 live births (158.8 and 146.0 per 1000 live births for males and females, respectively). Living a greater distance from a primary health center was associated with a higher probability of under-five mortality for both males (adjusted hazard ratio [aHR] 1.53 for ≥10 km versus < 2 km, 95% confidence interval [CI] 1.25-1.88) and females (aHR 1.59 for ≥10 km versus < 2 km, 95% CI 1.27-1.99). Under-five male mortality was additionally associated with lower household wealth quintile (aHR 1.47 for poorest versus wealthiest, 95%CI 1.21-1.78), lower reading ability among women of reproductive age in the household (aHR 1.73 for cannot read versus can read, 95%CI 1.04-2.86), and living in a household with access to electricity (aHR 1.16 for access versus no access, 95%CI 1.00-1.34). CONCLUSIONS: U5 mortality is very high in Bankass and is associated with living a greater distance from healthcare and several other household factors that may be amenable to intervention or facilitate program targeting.


Assuntos
Mortalidade Infantil , População Rural , Criança , Estudos Transversais , Feminino , Humanos , Masculino , Mali/epidemiologia , Modelos de Riscos Proporcionais
20.
BMC Health Serv Res ; 21(1): 853, 2021 Aug 21.
Artigo em Inglês | MEDLINE | ID: mdl-34419021

RESUMO

BACKGROUND: The need for interprofessional collaboration has been emphasized by health organizations. This study was part of a mixed-methods evaluation of interprofessional teamwork modules implementation in an emergency department (ED), where a major intervention was didactic training of team roles and behaviours in combination with practice scenarios. The aim of the study was to evaluate the implementation of interprofessional teamwork modules from a staff perspective and focus on how implementation fidelity may be sustained. METHODS: In this mixed-methods case study we triangulated staff data from structured observations, semi-structured interviews, and a questionnaire repeated at intervals over 5 years. A protocol of key team behaviours was used for the observations conducted in June 2016 and June 2018, 1½ and 3½ years after the initial implementation. A purposeful sample of central informants, including nursing and medical professionals and section managers, was interviewed from May to June 2018. The interview guide consisted of open-ended questions about the experiences of interprofessional teamwork modules and the implementation process. The questionnaire consisted of five statements about the perceived workload, interprofessional collaboration and patient satisfaction, where each was rated on a Likert scale. RESULTS: Good fidelity to four out of five key team behaviours was observed during the first year. However, fidelity was sustained only for one key team behaviour after 3 years. We conducted a qualitative content analysis of 18 individual interviews. The theme Enjoying working together, but feeling less efficient emerged of the interprofessional teamwork modules, despite shorter ED stays for the patients. Negative experiences of the staff included passive team leaders and slow care teams. The theme Stimulating to create, but challenging to sustain emerged of the implementation process, where barriers were not adressed and implementation fidelity not sustained. The staff questionnaire showed that the perceived work conditions was improved in periods of high fidelity, but deteriorated to pre-implementation levels as fidelity to the key team behaviours decayed in 2018. CONCLUSIONS: Extensive planning and successful initial implementation were not enough to sustain the key behaviour changes in the study. The use of implementation frameworks can be helpful in future projects.


Assuntos
Relações Interprofissionais , Equipe de Assistência ao Paciente , Serviço Hospitalar de Emergência , Humanos
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