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1.
Global Health ; 17(1): 73, 2021 07 02.
Artigo em Inglês | MEDLINE | ID: mdl-34215301

RESUMO

BACKGROUND: Global health partnerships (GHPs) are situated in complex political and economic relationships and involve partners with different needs and interests (e.g., government agencies, non-governmental organizations, corporations, universities, professional associations, philanthropic organizations and communities). As part of a mixed methods study designed to develop an equity-sensitive tool to support more equity-centred North-South GHPs, this critical interpretive synthesis examined reported assessments of GHPs. RESULTS: We examined 30 peer-reviewed articles for power dynamics, equity and inequities, and contradictions or challenges encountered in North-South partnerships. Among articles reviewed, authors most often situated GHPs around a topical focus on research, capacity-building, clinical, or health services issues, with the 'work' of the partnership aiming to foster skills or respond to community needs. The specific features of GHPs that were assessed varied widely, with consistently-reported elements including the early phases of partnering; governance issues; the day-to-day work of partnerships; the performance, impacts and benefits of GHPs; and issues of inclusion. Articles shared a general interest in partnering processes and often touched briefly on issues of equity; but they rarely accounted for the complexity of sociopolitical and historical contexts shaping issues of equity in GHPs. Further, assessments of GHPs were often reported without inclusion of voices from all partners or named beneficiaries. GHPs were frequently portrayed as inherently beneficial for Southern partners, without attention to power dynamics and inequities (North-South, South-South). Though historical and political dynamics of the Global North and South were inconsistently examined as influential forces in GHPs, such dynamics were frequently portrayed as complex and characterized by asymmetries in power and resources. Generally, assessments of GHPs paid little attention to the macroeconomic forces in the power and resource dynamics of GHPs highlights the importance of considering the broader political. Our findings suggest that GHPs can serve to entrench both inequitable relationships and unfair distributions of power, resources, and wealth within and between countries (and partners) if inequitable power relationships are left unmitigated. CONCLUSIONS: We argue that specific practices could enhance GHPs' contributions to equity, both in their processes and outcomes. Enhancing partnering practices to focus on inclusion, responsiveness to North-South and South-South inequities, and recognition of GHPs as situated in a broader (and inequitable) political economy. A relational and equity-centred approach to assessing GHPs would place social justice, humility and mutual benefits as central practices-that is, regular, routine things that partners involved in partnering do intentionally to make GHPs function well. Practicing equity in GHPs requires continuous efforts to explicitly acknowledge and examine the equity implications of all aspects of partnering.


Assuntos
Saúde Global , Organizações , Humanos , Justiça Social , Universidades
2.
Br J Nutr ; 122(8): 895-909, 2019 10 28.
Artigo em Inglês | MEDLINE | ID: mdl-31303184

RESUMO

Some studies found that providing micronutrient powder (MNP) causes adverse health outcomes, but modifying factors are unknown. We aimed to investigate whether Fe status and inherited Hb disorders (IHbD) modify the impact of MNP on growth and diarrhoea among young Lao children. In a double-blind controlled trial, 1704 children of age 6-23 months were randomised to daily MNP (with 6 mg Fe plus fourteen micronutrients) or placebo for about 36 weeks. IHbD, and baseline and final Hb, Fe status and anthropometrics were assessed. Caregivers provided weekly morbidity reports. At enrolment, 55·6 % were anaemic; only 39·3 % had no sign of clinically significant IHbD. MNP had no overall impact on growth and longitudinal diarrhoea prevalence. Baseline Hb modified the effect of MNP on length-for-age (LAZ) (P for interaction = 0·082). Among children who were initially non-anaemic, the final mean LAZ in the MNP group was slightly lower (-1·93 (95 % CI -1·88, -1·97)) v. placebo (-1·88 (95 % CI -1·83, -1·92)), and the opposite occurred among initially anaemic children (final mean LAZ -1·90 (95 % CI -1·86, -1·94) in MNP v. -1·92 (95 % CI -1·88, -1·96) in placebo). IHbD modified the effect on diarrhoea prevalence (P = 0·095). Among children with IHbD, the MNP group had higher diarrhoea prevalence (1·37 (95 % CI 1·17, 1·59) v. 1·21 (95 % CI 1·04, 1·41)), while it was lower among children without IHbD who received MNP (1·15 (95 % CI 0·95, 1·39) v. 1·37 (95 % CI 1·13, 1·64)). In conclusion, there was a small adverse effect of MNP on growth among non-anaemic children and on diarrhoea prevalence among children with IHbD.


Assuntos
Suplementos Nutricionais , Hemoglobinopatias/sangue , Ferro/sangue , Micronutrientes/administração & dosagem , Estado Nutricional , Anemia/epidemiologia , Anemia/fisiopatologia , Desenvolvimento Infantil/efeitos dos fármacos , Diarreia/epidemiologia , Diarreia/fisiopatologia , Método Duplo-Cego , Feminino , Hemoglobinopatias/genética , Hemoglobinopatias/fisiopatologia , Hemoglobinas/metabolismo , Humanos , Lactente , Laos , Masculino , Pós , Prevalência
3.
Pediatr Crit Care Med ; 17(5): 400-5, 2016 05.
Artigo em Inglês | MEDLINE | ID: mdl-27043996

RESUMO

OBJECTIVES: Acute infectious diseases are the most common cause of under-5 mortality. However, the hospital burden of nonneonatal pediatric sepsis has not previously been described in the resource poor setting. The objective of this study was to determine the prevalence of sepsis among children 6 months to 5 years old admitted with proven or suspected infection and to evaluate the presence of sepsis as a predictive tool for mortality during admission. DESIGN: In this prospective cohort study, we used the pediatric International Consensus Conference definition of sepsis to determine the prevalence of sepsis among children admitted to the pediatric ward with a proven or suspected infection. The diagnosis of sepsis, as well as each individual component of the sepsis definition, was evaluated for capturing in-hospital mortality. SETTING: The pediatric ward of two hospitals in Mbarara, Uganda. PATIENTS: Admitted children between 6 months and 5 years with a confirmed or suspected infection. INTERVENTIONS: None. MEASUREMENTS AND MAIN RESULTS: One thousand three hundred seven (1,307) subjects with a confirmed or suspected infection were enrolled, and 65 children died (5.0%) during their admission. One thousand one hundred twenty-one (85.9%) met the systemic inflammatory response syndrome criteria, and therefore, they were defined as having sepsis. The sepsis criteria captured 61 deaths, demonstrating a sensitivity and a specificity of 95% (95% CI, 90-100%) and 15% (95% CI, 13-17%), respectively. The most discriminatory individual component of the systemic inflammatory response syndrome criteria was the leukocyte count, which alone had a sensitivity of 72% and a specificity of 56% for the identification of mortality in hospital. CONCLUSIONS: This study is among the first to quantify the burden of nonneonatal pediatric sepsis in children with suspected infection, using the international consensus sepsis definition, in a typical resource-constrained setting in Africa. This definition was found to be highly sensitive in identifying those who died but had very low specificity as most children who were admitted with infections had sepsis. The systemic inflammatory response syndrome-based sepsis definition offers little value in identification of children at high risk of in-hospital mortality in this setting.


Assuntos
Sepse/diagnóstico , Sepse/epidemiologia , Pré-Escolar , Efeitos Psicossociais da Doença , Feminino , Mortalidade Hospitalar , Hospitalização , Humanos , Lactente , Masculino , Prevalência , Estudos Prospectivos , Sensibilidade e Especificidade , Uganda/epidemiologia
4.
PLOS Glob Public Health ; 4(4): e0003050, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38683787

RESUMO

In many low-income countries, over five percent of hospitalized children die following hospital discharge. The lack of available tools to identify those at risk of post-discharge mortality has limited the ability to make progress towards improving outcomes. We aimed to develop algorithms designed to predict post-discharge mortality among children admitted with suspected sepsis. Four prospective cohort studies of children in two age groups (0-6 and 6-60 months) were conducted between 2012-2021 in six Ugandan hospitals. Prediction models were derived for six-months post-discharge mortality, based on candidate predictors collected at admission, each with a maximum of eight variables, and internally validated using 10-fold cross-validation. 8,810 children were enrolled: 470 (5.3%) died in hospital; 257 (7.7%) and 233 (4.8%) post-discharge deaths occurred in the 0-6-month and 6-60-month age groups, respectively. The primary models had an area under the receiver operating characteristic curve (AUROC) of 0.77 (95%CI 0.74-0.80) for 0-6-month-olds and 0.75 (95%CI 0.72-0.79) for 6-60-month-olds; mean AUROCs among the 10 cross-validation folds were 0.75 and 0.73, respectively. Calibration across risk strata was good: Brier scores were 0.07 and 0.04, respectively. The most important variables included anthropometry and oxygen saturation. Additional variables included: illness duration, jaundice-age interaction, and a bulging fontanelle among 0-6-month-olds; and prior admissions, coma score, temperature, age-respiratory rate interaction, and HIV status among 6-60-month-olds. Simple prediction models at admission with suspected sepsis can identify children at risk of post-discharge mortality. Further external validation is recommended for different contexts. Models can be digitally integrated into existing processes to improve peri-discharge care as children transition from the hospital to the community.

5.
J Health Popul Nutr ; 31(3): 321-9, 2013 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-24288945

RESUMO

Zinc treatment for diarrhoea can shorten the course and prevent future episodes among children worldwide. However, knowledge and acceptability of zinc among African mothers is unknown. We identified children aged 3 to 59 months, who had diarrhoea within the last three months and participated in a home-based zinc treatment study in rural Kenya. Caretakers of these children were enrolled in two groups; zinc-users and non-users. A structured questionnaire was administered to all caretakers, inquiring about knowledge and appropriate use of zinc. Questions on how much the caretakers were willing to pay for zinc were asked. Proportions were compared using Mantel-Haenszel test, and medians were compared using Wilcoxon Rank Sum test. Among 109 enrolled caretakers, 73 (67%) used zinc, and 36 (33%) did not. Sixty-four (88%) caretakers in zinc-user group reported satisfaction with zinc treatment. Caretakers in the zinc-user group more often correctly identified appropriate zinc treatment (98%-100%) than did those in the non-user group (64-72%, p<0.001). Caretakers in the zinc-user group answered more questions about zinc correctly or favourably (median 10 of 11) compared to those in the non-user group (median 6.3 of 11, p<0.001). Caretakers in the zinc-user group were willing to pay more for a course of zinc in the future than those in the non-user group (median US$ 0.26, p<0.001). Caretakers of children given zinc recently had favourable impressions on the therapy and were willing to pay for it in the future. Active promotion of zinc treatment in clinics and communities in Africa could lead to greater knowledge, acceptance, and demand for zinc.


Assuntos
Diarreia/tratamento farmacológico , Conhecimentos, Atitudes e Prática em Saúde , Mães/psicologia , População Rural/estatística & dados numéricos , Oligoelementos/uso terapêutico , Zinco/uso terapêutico , Pré-Escolar , Feminino , Humanos , Lactente , Quênia , Masculino , Mães/estatística & dados numéricos , Satisfação do Paciente/estatística & dados numéricos , Estatísticas não Paramétricas , Inquéritos e Questionários , Oligoelementos/economia , Zinco/economia
6.
BMJ Open ; 13(4): e068901, 2023 04 18.
Artigo em Inglês | MEDLINE | ID: mdl-37072365

RESUMO

INTRODUCTION: Preadolescents are passing through an intensive growth and development period that will benefit from healthy eating practices. For those attending school, school environments offer several potential benefits and have been demonstrated to influence the quality of dietary intakes and consequentially, nutritional status of school-aged children (SAC). Considering the amount of time children spend in school and the enormous potential of evidence-based interventions, the purpose of this review is to critically appraise peer-reviewed literature addressing the impact of school-based interventions on the nutritional status of SAC aged 6-12 years in sub-Saharan Africa. METHODS AND ANALYSIS: A systematic search will be conducted in the following databases and online search records: Medline, CINAHL, Web of Science, Embase, Global health, Global Index Medicus, Cochrane library, Hinari and Google Scholar using search terms and keywords codeveloped with two librarians. An additional search will also be conducted from the reference list of identified literature. Search results of titles and abstracts will be initially screened for eligibility criteria by two independent reviewers and where there is disagreement, a third reviewer will be consulted. Articles meeting these criteria will then undergo a full-text review for the eligibility and exclusion criteria. The Joanna Briggs Institute critical appraisal tool will be used to assess the risk of bias. Data from articles meeting all study criteria will be extracted, analysed and synthesised. A meta-analysis will also be conducted if sufficient data are available. ETHICS AND DISSEMINATION: This systematic review is limited to publicly accessible data bases not requiring prior ethical approval to access. The results of the systematic review will be disseminated through publications in peer-reviewed journals as well as conference and stakeholder presentations. PROSPERO REGISTRATION NUMBER: CRD42022334829.


Assuntos
Instituições Acadêmicas , Humanos , Criança , África Subsaariana , Revisões Sistemáticas como Assunto , Metanálise como Assunto
7.
Lancet Child Adolesc Health ; 7(8): 555-566, 2023 08.
Artigo em Inglês | MEDLINE | ID: mdl-37182535

RESUMO

BACKGROUND: Substantial mortality occurs after hospital discharge in children younger than 5 years with suspected sepsis, especially in low-income countries. A better understanding of its epidemiology is needed for effective interventions to reduce child mortality in these countries. We evaluated risk factors for death after discharge in children admitted to hospital for suspected sepsis in Uganda, and assessed how these differed by age, time of death, and location of death. METHODS: In this prospective, multisite, observational cohort study, we recruited and consecutively enrolled children aged 0-60 months admitted with suspected sepsis from the community to the paediatric wards of six Ugandan hospitals. Suspected sepsis was defined as the need for admission due to a suspected or proven infectious illness. At admission, trained study nurses systematically collected data on clinical variables, sociodemographic variables, and baseline characteristics with encrypted study tablets. Participants were followed up for 6 months after discharge by field officers who contacted caregivers at 2 months and 4 months after discharge by telephone and at 6 months after discharge in person to measure vital status, health-care seeking after discharge, and readmission details. We assessed 6-month mortality after hospital discharge among those discharged alive, with verbal autopsies conducted for children who had died after hospital discharge. FINDINGS: Between July 13, 2017, and March 30, 2020, 16 991 children were screened for eligibility. 6545 children (2927 [44·72%] female children and 3618 [55·28%] male children) were enrolled and 6191 were discharged from hospital alive. 6073 children (2687 [44·2%] female children and 3386 [55·8%] male children) completed follow-up. 366 children died in the 6-month period after discharge (weighted mortality rate 5·5%). Median time from discharge to death was 28 days (IQR 9-74). For the 360 children for whom location of death was documented, deaths occurred at home (162 [45·0%]), in transit to care (66 [18·3%]), or in hospital (132 [36·7%]) during a subsequent readmission. Death after hospital discharge was strongly associated with weight-for-age Z scores less than -3 (adjusted risk ratio [aRR] 4·7, 95% CI 3·7-5·8 vs a Z score of >-2), discharge or referral to a higher level of care (7·3, 5·6-9·5), and unplanned discharge (3·2, 2·5-4·0). Hazard ratios (HRs) for severe anaemia (<7g/dL) increased with time since discharge, from 1·7 (95% CI 0·9-3·0) for death occurring in the first time tertile to 5·2 (3·1-8·5) in the third time tertile. HRs for some discharge vulnerabilities decreased significantly with increasing time since discharge, including unplanned discharge (from 4.5 [2·9-6·9] in the first tertile to 2·0 [1·3-3·2] in the third tertile) and poor feeding status (from 7·7 [5·4-11·0] to 1·84 [1·0-3·3]). Age interacted with several variables, including reduced weight-for-age Z score, severe anaemia, and reduced admission temperature. INTERPRETATION: Paediatric mortality following hospital discharge after suspected sepsis is common, with diminishing, although persistent, risk during the first 6 months after discharge. Efforts to improve outcomes after hospital discharge are crucial to achieving Sustainable Development Goal 3.2 (ending preventable childhood deaths under age 5 years). FUNDING: Grand Challenges Canada, Thrasher Research Fund, BC Children's Hospital Foundation, and Mining4Life.


Assuntos
Alta do Paciente , Sepse , Criança , Humanos , Masculino , Feminino , Uganda/epidemiologia , Estudos Prospectivos , Sepse/epidemiologia , Hospitais
8.
J Glob Health ; 12: 04103, 2022 Dec 29.
Artigo em Inglês | MEDLINE | ID: mdl-36579597

RESUMO

Background: Women and their families make decisions on accessing perinatal care based on their experiences in the health care system and on the experience of others around them. Receiving supportive maternity care which demonstrates respect is an essential part of quality care. Globally, and in low- and middle-income countries in particular, women report receiving mistreatment and a lack of respect during labour, childbirth and the early postnatal period. These experiences, if negative, may influence choices around place of birth, thus hindering the scale-up of facility-based births. Methods: We conducted a focussed review of the literature between 2010 and 2019 to identify recent research addressing the assessment of women's experiences during childbirth in low- and middle-income country facilities. The World Health Organization (WHO) and White Ribbon Alliance themes and concepts of respectful maternity care served as a guide. Themes included disrespectful or abusive experiences such as verbal abuse or rudeness, abandonment, corruption, lack of privacy, failure to respect traditional practices, discrimination, and physical or sexual abuse. Experienced midwives in two low-resource countries contributed to the identification of appropriate indicators of respectful, non-abusive care, and eventual agreement as to which to include in an assessment tool monitoring women's experiences. Results: Our review of the literature identified 18 publications meeting pre-established criteria. This resulted in the eventual selection of 33 indicators of respectful care sub-grouped under 9 domains: 1) communication/verbal interaction, 2) supportive care, 3) physical abuse, 4) non-consented care, 5) non-confidential care/lack of privacy, 6) stigma and discrimination, 7) abandonment/neglect, 8) detention/inability to pay, and 9) health facility conditions. We converted these indicators into questions to be asked by an interviewer during a short interview following discharge to assess the childbirth experience. Conclusions: The Perinatal Experience Assessment Tool (PEAT) may be used to monitor or evaluate the experiences that women report after facility-based childbirth. It can be administered by trained, independent interviewers in the facility following discharge. The PEAT enables maternity leaders to assess the extent to which maternity services are conducted in a respectful, non-abusive manner and modify practices and procedures as feasible and appropriate.


Assuntos
Serviços de Saúde Materna , Feminino , Gravidez , Humanos , Autorrelato , Atitude do Pessoal de Saúde , Parto , Parto Obstétrico , Qualidade da Assistência à Saúde , Solo
9.
Glob Health Sci Pract ; 10(2)2022 04 28.
Artigo em Inglês | MEDLINE | ID: mdl-35487557

RESUMO

Global health partnerships (GHPs) involve complex relationships between individuals and organizations, often joining partners from high-income and low- or middle-income countries around work that is carried out in the latter. Therefore, GHPs are situated in the context of global inequities and their underlying sociopolitical and historical causes, such as colonization. Equity is a core principle that should guide GHPs from start to end. How equity is embedded and nurtured throughout a partnership has remained a constant challenge. We have developed a user-friendly tool for valuing a GHP throughout its lifespan using an equity lens. The development of the EQT was informed by 5 distinct elements: a scoping review of scientific published peer-reviewed literature; an online survey and follow-up telephone interviews; workshops in Canada, Burkina Faso, and Vietnam; a critical interpretive synthesis; and a content validation exercise. Findings suggest GHPs generate experiences of equity or inequity yet provide little guidance on how to identify and respond to these experiences. The EQT can guide people involved in partnering to consider the equity implications of all their actions, from inception, through implementation and completion of a partnership. When used to guide reflective dialogue with a clear intention to advance equity in and through partnering, this tool offers a new approach to valuing global health partnerships. Global health practitioners, among others, can apply the EQT in their partnerships to learning together about how to cultivate equity in their unique contexts within what is becoming an increasingly diverse, vibrant, and responsive global health community.


Assuntos
Saúde Global , Organizações , Burkina Faso , Humanos , Vietnã
10.
J Nutr ; 141(2): 312-5, 2011 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-21147907

RESUMO

We conducted a randomized, double-blind placebo controlled, community trial in rural Bangladesh in children 4-59 mo of age to compare the efficacy of a 5- and 10-d course of zinc therapy on the incidence and duration of diarrhea over the subsequent 90-d follow-up after initial treatment for an acute childhood diarrheal (ACD) episode. Children (n = 1622) with ACD were randomly allocated to either 5 or 10 d of zinc treatment. Female field workers visited each child daily, supervised the administration of zinc, recorded the duration of current episode, and the occurrence and duration of diarrhea over the subsequent 3 mo. The incidence of diarrhea over the 90 d of follow-up did not differ between the 5-d (1.08 ± 1.38 episodes) and 10-d (1.02 ± 1.35 episodes) groups (P = 0.35). Children in both groups experienced a comparable duration of diarrheal episodes (3.1 ± 5.6 d vs. 2.9 ± 5.6 d, 5-d vs. 10-d, respectively; P = 0.64) with a mean difference between groups within the defined range of equivalence. Time to onset of the first episode and the proportion children experiencing diarrhea during the 90-d follow-up also did not differ between groups. These findings suggest that among Bangladeshi children, a 5-d zinc treatment for ACD is as efficacious as 10 d in preventing diarrhea in the subsequent 3 mo.


Assuntos
Antidiarreicos/administração & dosagem , Diarreia/prevenção & controle , Zinco/administração & dosagem , Doença Aguda , Antidiarreicos/farmacologia , Bangladesh , Pré-Escolar , Diarreia/tratamento farmacológico , Diarreia/epidemiologia , Suplementos Nutricionais , Método Duplo-Cego , Esquema de Medicação , Feminino , Humanos , Incidência , Lactente , Masculino , População Rural , Resultado do Tratamento , Zinco/farmacologia
11.
Can J Public Health ; 102(2): 149-51, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-21608389

RESUMO

In May 2010, Grand Challenges Canada (GCC) was launched with the mandate to identify global challenges in health that could be supported through the Government of Canada's Development Innovations Fund (DIF: $225 million over five years). The GCC offers a potentially excellent mechanism for taking Canada's participation in global health challenges "to a higher level". Recent GCC announcements raise new questions about the emphasis being placed on technological discovery or "catalytic" research. Missing so far are opportunities that the Fund could offer in order to support innovative research addressing i) health systems strengthening, ii) more effective delivery of existing interventions, and iii) policies and programs that address broader social determinants of health. The Canadian Grand Challenges announced to date risk pushing to the sidelines good translational and implementation science and early career-stage scientists addressing important social, environmental and political conditions that affect disease prevalence, progress and treatment; and the many unresolved challenges faced in bringing to scale proven interventions within resource-constrained health systems. We wish to register our concern at the apparent prioritization of biotechnical innovation research and the subordination of the social, environmental, economic and political context in which human health is either protected or eroded.


Assuntos
Pesquisa Biomédica/normas , Saúde Global , Pesquisa sobre Serviços de Saúde/normas , Pesquisa Biomédica/economia , Canadá , Pesquisa sobre Serviços de Saúde/economia , Humanos , Apoio à Pesquisa como Assunto
12.
J Nutr ; 140(5): 1049-56, 2010 May.
Artigo em Inglês | MEDLINE | ID: mdl-20237063

RESUMO

Information is limited on the effect of zinc on immune responses in children with diarrhea due to enterotoxigenic Escherichia coli (ETEC), the most common bacterial pathogen in children. We studied the immunological effect of zinc treatment (20 mg/d) and supplementation (10 mg/d) in children with diarrhea due to ETEC. A total of 148 children aged 6-24 mo were followed up for 9 mo after a 10-d zinc treatment (ZT; n = 74) or a 10-d zinc treatment plus 3-mo supplementation (ZT+S; n = 74), as well as 50 children with ETEC-induced diarrhea that were not treated with zinc (UT). Fifty control children (HC) of the same age group from the same location were also studied. Serum zinc concentrations were higher in both the ZT (P < 0.001) and ZT+S groups (P < 0.001) than in the UT group but did not differ from the HC group. We found higher serum complement C3 immediately after zinc administration in both ZT (P < 0.001) and ZT+S (P < 0.001) groups than in the UT group. Phagocytic activity in children in both ZT (P < 0.01) and ZT+S (P < 0.01) groups was greater than in the UT group. However, oxidative burst capacity was lower in zinc-receiving groups (ZT, P < 0.001 and ZT+S, P < 0.001) than in the UT group. The naïve:memory T cell ratio in both ZT (P < 0.05) and ZT+S (P < 0.01) groups was higher than in the UT group from d 2 to 15. Increased responses, including complement C3, phagocytic activity, and changes in T cell phenotypes, suggest that zinc administration enhances innate immunity against ETEC infection in children.


Assuntos
Diarreia/tratamento farmacológico , Suplementos Nutricionais , Escherichia coli Enterotoxigênica , Infecções por Escherichia coli/tratamento farmacológico , Imunidade Inata/efeitos dos fármacos , Zinco/farmacologia , Estudos de Casos e Controles , Complemento C3/metabolismo , Diarreia/imunologia , Diarreia/microbiologia , Infecções por Escherichia coli/imunologia , Infecções por Escherichia coli/microbiologia , Feminino , Humanos , Lactente , Masculino , Fagocitose/efeitos dos fármacos , Explosão Respiratória/efeitos dos fármacos , Linfócitos T/efeitos dos fármacos , Zinco/sangue , Zinco/uso terapêutico
13.
Trop Med Int Health ; 15(6): 754-61, 2010 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-20374562

RESUMO

OBJECTIVES: To determine whether continuing with zinc supplementation after zinc treatment (ZT) of an acute diarrhoea episode will result in additional clinical benefits beyond ZT alone. METHODS: Children 6-23 months of age, living in an urban slum in Dhaka, Bangladesh with acute childhood diarrhoea (ACD), were enrolled in a randomized, double-blind field trial. All children received 10 days of ZT (20 mg/day) and were then randomized to zinc (10 mg/day) or placebo supplementation for 3 months. Weekly follow-up of all children occurred over a period of 9 months. RESULTS: A total of 353 subjects were enrolled, with 93% of the zinc supplemented and 96% of the placebo children followed for 9 months. The incidence density of ACD among those receiving zinc supplementation compared to those receiving placebo was reduced by 28% (2.64 vs.3.66 episodes/p-y follow-up) over the 3 months while on supplementation and by 21% (2.05 vs.2.59 episodes/p-y follow-up) over the 9 months of follow-up. There was no observed effect on the incidence of acute respiratory infections (ARIs) or on growth. CONCLUSIONS: Zinc supplementation after treatment provides additional preventive ACD benefits to children in early childhood. Larger, effectiveness trials of this strategy are warranted.


Assuntos
Diarreia Infantil/prevenção & controle , Zinco/uso terapêutico , Doença Aguda , Bangladesh/epidemiologia , Diarreia Infantil/epidemiologia , Suplementos Nutricionais , Método Duplo-Cego , Feminino , Humanos , Incidência , Lactente , Masculino , Placebos , Áreas de Pobreza , Infecções Respiratórias/epidemiologia , Fatores Sexuais , Zinco/deficiência
14.
J Glob Health ; 10(1): 010424, 2020 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-32612816

RESUMO

BACKGROUND: Diarrhea and respiratory tract infections are leading causes of childhood morbidity and mortality. This individually randomized, double-blind placebo-controlled trial was designed to evaluate the effects of different zinc supplementation regimens on the incidence and duration of diarrhea and acute lower (ALRI) and upper (AURI) respiratory tract infections among rural Laotian children. The study included 3407 children, 6-23 months at enrollment. METHODS: Children were randomized to one of four study groups: therapeutic zinc supplements for diarrhea treatment (20 mg/d for 10 days with each episode; TZ), daily preventive zinc tablets (7 mg/d; PZ), daily multiple micronutrient powder (10 mg/d zinc, 6 mg/d iron and 13 other micronutrients; MNP), or daily placebo powder for 9 months. Incidence and duration of diarrhea (≥3 liquid stools/24 hours), ALRI (persistent cough with wheezing, stridor or chest in-drawing) and AURI (purulent nasal discharge with cough) were assessed by parental report during weekly home visits and analyzed using negative binomial models. RESULTS: Baseline mean age was 14.2 ± 5.1 months, and 71% had low plasma zinc (<65 µg/dL). Overall diarrhea incidence (0.61 ± 0.01 episodes/100 days at risk) and duration (2.12 ± 0.03 days/episode) did not differ by study group. Age modified the impact of the interventions on diarrhea incidence (P = 0.06) and duration (P = 0.01). In children >18 months, TZ reduced diarrhea incidence by 24% vs MNP (P = 0.035), and 36% vs Control (P = 0.004), but there was no difference with PZ. This patterned remained when analyses were restricted to diarrhea episode occurring after the first treatment with TZ. Also, in children >18 months, TZ reduced diarrhea duration by 15% vs PZ (P = 0.03), and 16% vs Control (P = 0.03), but there was no difference with MNP. There were no overall effects of study group on incidence of ALRI (overall mean 0.005 ± 0.001 episodes/100 days, P = 0.14) or AURI (overall mean 0.09 ± 0.01 episodes/100 days, P = 0.72). CONCLUSIONS: There was no overall impact of TZ, PZ or MNP on diarrhea, ALRI and AURI. However, in children >18 months, TZ significantly reduced both the duration of diarrhea episodes and the incidence of future diarrhea episodes compared with placebo. TRIAL REGISTRATION: ClinicalTrials.gov: NCT02428647.


Assuntos
Diarreia/prevenção & controle , Suplementos Nutricionais , Infecções Respiratórias/prevenção & controle , População Rural/estatística & dados numéricos , Zinco/uso terapêutico , Diarreia/epidemiologia , Método Duplo-Cego , Feminino , Humanos , Incidência , Lactente , Laos/epidemiologia , Masculino , Infecções Respiratórias/epidemiologia , Resultado do Tratamento
15.
PLoS Med ; 6(11): e1000175, 2009 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-19888335

RESUMO

BACKGROUND: Zinc treatment of childhood diarrhea has the potential to save 400,000 under-five lives per year in lesser developed countries. In 2004 the World Health Organization (WHO)/UNICEF revised their clinical management of childhood diarrhea guidelines to include zinc. The aim of this study was to monitor the impact of the first national campaign to scale up zinc treatment of childhood diarrhea in Bangladesh. METHODS/FINDINGS: Between September 2006 to October 2008 seven repeated ecologic surveys were carried out in four representative population strata: mega-city urban slum and urban nonslum, municipal, and rural. Households of approximately 3,200 children with an active or recent case of diarrhea were enrolled in each survey round. Caretaker awareness of zinc as a treatment for childhood diarrhea by 10 mo following the mass media launch was attained in 90%, 74%, 66%, and 50% of urban nonslum, municipal, urban slum, and rural populations, respectively. By 23 mo into the campaign, approximately 25% of urban nonslum, 20% of municipal and urban slum, and 10% of rural under-five children were receiving zinc for the treatment of diarrhea. The scale-up campaign had no adverse effect on the use of oral rehydration salt (ORS). CONCLUSIONS: Long-term monitoring of scale-up programs identifies important gaps in coverage and provides the information necessary to document that intended outcomes are being attained and unintended consequences avoided. The scale-up of zinc treatment of childhood diarrhea rapidly attained widespread awareness, but actual use has lagged behind. Disparities in zinc coverage favoring higher income, urban households were identified, but these were gradually diminished over the two years of follow-up monitoring. The scale up campaign has not had any adverse effect on the use of ORS. Please see later in the article for the Editors' Summary.


Assuntos
Diarreia/tratamento farmacológico , Conhecimentos, Atitudes e Prática em Saúde , Promoção da Saúde , Zinco/uso terapêutico , Bangladesh , Cuidadores , Criança , Coleta de Dados , Diarreia/epidemiologia , Humanos , Prevalência , Avaliação de Programas e Projetos de Saúde
16.
Asia Pac J Public Health ; 21(1): 8-18, 2009 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-19124332

RESUMO

This article assessed the status of childhood vaccination coverage and the possibility of using selected alternative vaccination strategies in rural hard-to-reach haor (low lying) areas of Bangladesh. Data were collected through survey, in-depth interviews, group discussion, and observations of vaccination sessions. Complete immunization coverage among 12- to 23-month-old children was found to be significantly lower in study areas when compared with the national coverage levels. The study identified reasons for low complete immunization coverage in hard-to-reach areas, including irregular/cancelled extended program on immunization (EPI) sessions, less time spent in EPI spots by field staff, and absence of any alternative strategy for remote areas. The findings indicated that the existing service delivery strategy is not sufficient to improve immunization coverage in hard-to-reach areas. However, most of the strategies assessed are considered possible to implement by health care providers in hard-to-reach areas. The study suggested that before implementing alternative strategies in hard-to-reach areas, feasibility and effectiveness of the possible strategies need to be tested to identify evidence-based strategies.


Assuntos
Programas de Imunização/organização & administração , Imunização/estatística & dados numéricos , Área Carente de Assistência Médica , Avaliação das Necessidades , Serviços de Saúde Rural/organização & administração , Adulto , Bangladesh , Estudos Transversais , Feminino , Pesquisas sobre Atenção à Saúde , Humanos , Lactente , Masculino , Mães
17.
J Health Popul Nutr ; 26(3): 356-65, 2008 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-18831230

RESUMO

Zinc is an essential micronutrient associated with over 300 biological functions. Marginal zinc deficiency states are common among children living in poverty and exposed to diets either low in zinc or high in phytates that compromise zinc uptake. These children are at increased risk of morbidity due to infectious diseases, including diarrhoea and respiratory infection. Children aged less than five years (under-five children) and those exposed to zinc-deficient diets will benefit from either daily supplementation of zinc or a 10 to 14-day course of zinc treatment for an episode of acute diarrhoea. This includes less severe illness and a reduced likelihood of repeat episodes of diarrhoea. Given these findings, the World Health Organization/United Nations Children's Fund now recommend that all children with an acute diarrhoeal illness be treated with zinc, regardless of aetiology. ICDDR.B scientists have led the way in identifying the benefits of zinc. Now, in partnership with the Ministry of Health and Family Welfare, Government of Bangladesh and the private sector, the first national scaling up of zinc treatment has been carried out. Important challenges remain in terms of reaching the poorest families and those living in remote areas of Bangladesh.


Assuntos
Diarreia/tratamento farmacológico , Avaliação de Resultados em Cuidados de Saúde , Zinco/deficiência , Zinco/uso terapêutico , Bangladesh , Pré-Escolar , Diarreia/epidemiologia , Diarreia/prevenção & controle , Suplementos Nutricionais , Feminino , Humanos , Lactente , Recém-Nascido , Masculino , Prevalência , Índice de Gravidade de Doença , Resultado do Tratamento
19.
PLoS One ; 13(1): e0191054, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29338012

RESUMO

BACKGROUND: A geographic information system (GIS)-based transport network within an emergency referral system can be the key to reducing health system delays and increasing the chances of survival, especially during an emergency. We employed a GIS to design an emergency transport system for the rapid transfer of pregnant or early post-partum women, newborns, and children under 5 years of age with suspected sepsis under the Interrupting Pathways to Sepsis Initiative (IPSI) project. METHODS: A GIS database was developed by mapping the villages, roads, and relevant physical features of the study area. A travel-time algorithm was developed to incorporate the time taken by different modes of local transport to reach the health complexes. These were used in a network analysis to identify the shortest routes to the hospitals from the villages, which were categorized into green, yellow, and red zones based on their proximity to the nearest hospitals to provide transport facilities. An emergency call-in centre established for the project managed the transport system, and its data was used to assess the uptake of this transport system amongst distant communities. RESULTS: Fifteen pre-existing and two new routes were identified as the shortest routes to the health complexes. The call-in centre personnel used this route information to direct both patients and transport drivers to the nearest transport hubs or pick-up points. Adherence with referral advice was high in areas where the IPSI transport operated. Over the study period, the utilisation of the project's transport doubled and referral compliance from distant zones similarly increased. CONCLUSIONS: The GIS system created for this study facilitated rapid referral of patients in emergency from distant zones, using locally available transport and resources. The methodology described in this study to develop and implement an emergency transport system can be applied in similar, rural, low-income country settings.


Assuntos
Serviços Médicos de Emergência/organização & administração , Encaminhamento e Consulta , Sepse/terapia , Transporte de Pacientes , Bangladesh , Sistemas de Informação Geográfica , Humanos
20.
BMC Nutr ; 4: 39, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-32153900

RESUMO

BACKGROUND: Zinc is an essential nutrient that is required for children's normal growth and resistance to infections, including diarrhea and pneumonia, two major causes of child mortality. Daily or weekly preventive zinc supplementation has been shown to improve growth and reduce the risk of infection, while therapeutic zinc supplementation for 10-14 days is recommended for the treatment of diarrhea. The overall objective of the present study is to compare several regimens for delivering zinc to young children, both for the prevention of zinc deficiency and the treatment of diarrhea. METHODS: The present study is a community-based, randomized controlled trial in the Lao People's Democratic Republic (PDR). Three thousand, four hundred children 6-23 months of age will be randomized to one of four intervention groups (daily preventive zinc dispersible tablet, daily preventive multiple micronutrient powder, therapeutic zinc dispersible tablet for diarrhea, or placebo control); interventions will be delivered for 9 months and outcomes measured at pre-determined intervals. Primary outcomes include physical growth (length and weight), diarrhea incidence, hemoglobin and micronutrient status, and innate and adaptive immune function. Secondary outcomes include mid-upper-arm circumference, neuro-behavioral development, hair cortisol concentrations, markers of intestinal inflammation and parasite burden. Incidence of adverse events and the modifying effects of inherited hemoglobin disorders and iron status on the response to the intervention will also be examined. We will estimate unadjusted effects and effects adjusted for selected baseline covariates using ANCOVA. DISCUSSION: Many countries are now rolling out large-scale programs to include therapeutic zinc supplementation in the treatment of childhood diarrhea, but few have established programs demonstrated to be effective in the prevention of zinc deficiency. This study will address how best to deliver supplemental zinc to prevent zinc deficiency and reduce the severity of diarrhea-related health complications. TRIAL REGISTRATION: Trial registration identifier (NCT02428647) ; Date of registration: April 29, 2015.

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