scholarly journals Defining hypoxaemia from pulse oximeter measurements of oxygen saturation in well children at low altitude in Bangladesh: an observational study

2021 ◽  
Vol 8 (1) ◽  
pp. e001023
Author(s):  
Eric D McCollum ◽  
Carina King ◽  
Salahuddin Ahmed ◽  
Abu A M Hanif ◽  
Arunangshu D Roy ◽  
...  
Keyword(s):  
Low Income ◽  
Pulse Oximeter ◽  
Health Workers ◽  
Respiratory Infections ◽  
Clinical Status ◽  
Older Children ◽  
Middle Income ◽  
Lower Altitude ◽  
Low Altitude ◽  
Peripheral Arterial

BackgroundWHO defines hypoxaemia, a low peripheral arterial oxyhaemoglobin saturation (SpO2), as <90%. Although hypoxaemia is an important risk factor for mortality of children with respiratory infections, the optimal SpO2 threshold for defining hypoxaemia is uncertain in low-income and middle-income countries (LMICs). We derived a SpO2 threshold for hypoxaemia from well children in Bangladesh residing at low altitude.MethodsWe prospectively enrolled well, children aged 3–35 months participating in a pneumococcal vaccine evaluation in Sylhet district, Bangladesh between June and August 2017. Trained health workers conducting community surveillance measured the SpO2 of children using a Masimo Rad-5 pulse oximeter with a wrap sensor. We used standard summary statistics to evaluate the SpO2 distribution, including whether the distribution differed by age or sex. We considered the 2.5th, 5th and 10th percentiles of SpO2 as possible lower thresholds for hypoxaemia.ResultsOur primary analytical sample included 1470 children (mean age 18.6±9.5 months). Median SpO2 was 98% (IQR 96%–99%), and the 2.5th, 5th and 10th percentile SpO2 was 91%, 92% and 94%. No child had a SpO2 <90%. Children 3–11 months had a lower median SpO2 (97%) than 12–23 months (98%) and 24–35 months (98%) (p=0.039). The SpO2 distribution did not differ by sex (p=0.959).ConclusionA SpO2 threshold for hypoxaemia derived from the 2.5th, 5th or 10th percentile of well children is higher than <90%. If a higher threshold than <90% is adopted into LMIC care algorithms then decision-making using SpO2 must also consider the child’s clinical status to minimise misclassification of well children as hypoxaemic. Younger children in lower altitude LMICs may require a different threshold for hypoxaemia than older children. Evaluating the mortality risk of sick children using higher SpO2 thresholds for hypoxaemia is a key next step.

scholarly journals Defining hypoxemia from pulse oximeter measurements of oxygen saturation in well children at low altitude in Bangladesh: an observational study

2021 ◽  
Author(s):  
Eric D McCollum ◽  
Carina King ◽  
Salahuddin Ahmed ◽  
Abu AM Hanif ◽  
Arunangshu D Roy ◽  
...  
Keyword(s):  
Low Income ◽  
Pulse Oximeter ◽  
Health Workers ◽  
Respiratory Infections ◽  
Clinical Status ◽  
World Health ◽  
Older Children ◽  
Middle Income ◽  
Lower Altitude ◽  
Low Altitude

Background: The World Health Organization defines hypoxemia, a low peripheral oxyhemoglobin saturation (SpO2), as <90%. Although hypoxemia is an important risk factor for mortality of children with respiratory infections, the optimal SpO2 threshold for defining hypoxemia is uncertain in low-income and middle-income countries (LMICs). We derived a SpO2 threshold for hypoxemia from well children in Bangladesh residing at low altitude. Methods: We prospectively enrolled well, 3-35 month old children participating in a pneumococcal vaccine evaluation in Sylhet district, Bangladesh between June and August 2017. Trained health workers conducting community surveillance measured the SpO2 of children using a Masimo Rad-5 pulse oximeter with a wrap sensor. We used standard summary statistics to evaluate the SpO2 distribution, including whether the distribution differed by age or sex. We considered the 2.5th, 5th, and 10th percentiles of SpO2 as possible lower thresholds for hypoxemia. Results: Our primary analytical sample included 1,470 children (mean age 18.6 +/- 9.5 months). Median SpO2 was 98% (interquartile range, 96-99%), and the 2.5th, 5th, and 10th percentile SpO2 was 91%, 92%, and 94%. No child had a SpO2 <90%. Children 3-11 months old had a lower median SpO2 (97%) than 12-23 month olds (98%) and 24-35 month olds (98%) (p=0.039). The SpO2 distribution did not differ by sex (p=0.959). Conclusion: A SpO2 threshold for hypoxemia derived from the 2.5th, 5th, or 10th percentile of well children is higher than <90%. If a higher threshold than <90% is adopted into LMIC care algorithms then decision-making using SpO2 must also consider the childs clinical status to minimize misclassification of well children as hypoxemic. Younger children in lower altitude LMICs may require a different threshold for hypoxemia than older children. Evaluating the mortality risk of sick children using higher SpO2 thresholds for hypoxemia is a key next step.

scholarly journals Scoping review assessing the evidence used to support the adoption of mobile health (mHealth) technologies for the education and training of community health workers (CHWs) in low-income and middle-income countries

BMJ Open ◽  
2018 ◽  
Vol 8 (7) ◽  
pp. e019827 ◽  
Author(s):  
Niall Winters ◽  
Laurenz Langer ◽  
Anne Geniets
Keyword(s):  
Systematic Reviews ◽  
Scoping Review ◽  
Low Income ◽  
Health Workers ◽  
Education And Training ◽  
Evidence Base ◽  
Mobile Technologies ◽  
Middle Income ◽  
And Training ◽  
Formal Theories

ObjectivesUndertake a systematic scoping review to determine how a research evidence base, in the form of existing systematic reviews in the field of mobile health (mHealth), constitutes education and training for community health workers (CHWs) who use mobile technologies in everyday work. The review was informed by the following research questions: does educational theory inform the design of the education and training component of mHealth interventions? How is education and training with mobile technology by CHWs in low-income and middle-income countries categorised by existing systematic reviews? What is the basis for this categorisation?SettingThe review explored the literature from 2000 to 2017 to investigate how mHealth interventions have been positioned within the available evidence base in relation to their use of formal theories of learning.ResultsThe scoping review found 24 primary studies that were categorised by 16 systematic reviews as supporting CHWs’ education and training using mobile technologies. However, when formal theories of learning from educational research were used to recategorise these 24 primary studies, only four could be coded as such. This identifies a problem with how CHWs’ education and training using mobile technologies is understood and categorised within the existing evidence base. This is because there is no agreed on, theoretically informed understanding of what counts as learning.ConclusionThe claims made by mHealth researchers and practitioners regarding the learning benefits of mobile technology are not based on research results that are underpinned by formal theories of learning. mHealth suffers from a reductionist view of learning that underestimates the complexities of the relationship between pedagogy and technology. This has resulted in miscategorisations of what constitutes CHWs’ education and training within the existing evidence base. This can be overcome by informed collaboration between the health and education communities.

scholarly journals How to do (or not to do)… Measuring health worker motivation in surveys in low- and middle-income countries

2017 ◽  
Vol 33 (2) ◽  
pp. 192-203 ◽  
Author(s):  
J Borghi ◽  
J Lohmann ◽  
E Dale ◽  
F Meheus ◽  
J Goudge ◽  
...  
Keyword(s):  
Health Worker ◽  
Low Income ◽  
Health Workers ◽  
Poor Quality ◽  
Validity And Reliability ◽  
High Quality Research ◽  
Quality Health Care ◽  
Middle Income ◽  
Health Worker Motivation ◽  
Worker Motivation

Abstract A health system’s ability to deliver quality health care depends on the availability of motivated health workers, which are insufficient in many low income settings. Increasing policy and researcher attention is directed towards understanding what drives health worker motivation and how different policy interventions affect motivation, as motivation is key to performance and quality of care outcomes. As a result, there is growing interest among researchers in measuring motivation within health worker surveys. However, there is currently limited guidance on how to conceptualize and approach measurement and how to validate or analyse motivation data collected from health worker surveys, resulting in inconsistent and sometimes poor quality measures. This paper begins by discussing how motivation can be conceptualized, then sets out the steps in developing questions to measure motivation within health worker surveys and in ensuring data quality through validity and reliability tests. The paper also discusses analysis of the resulting motivation measure/s. This paper aims to promote high quality research that will generate policy relevant and useful evidence.

scholarly journals How primary healthcare workers obtain information during consultations to aid safe prescribing in low-income and lower middle-income countries: a systematic review

2020 ◽  
Vol 5 (4) ◽  
pp. e002094 ◽  
Author(s):  
Chris Smith ◽  
Michelle Helena van Velthoven ◽  
Nguyen Duc Truong ◽  
Nguyen Hai Nam ◽  
Vũ Phan Anh ◽  
...  
Keyword(s):  
Low Income ◽  
Primary Healthcare ◽  
Healthcare Workers ◽  
Health Workers ◽  
Internet Access ◽  
Sources Of Information ◽  
Quality Of Reporting ◽  
Middle Income ◽  
Middle Income Countries ◽  
Registration Number

BackgroundWe systematically reviewed the evidence on how primary healthcare workers obtain information during consultations to support decision-making for prescribing in low and lower middle-income countries.MethodsWe searched electronic databases, consulted the Healthcare Information For All network, hand searched reference lists, ran citation searches of included studies and emailed authors of identified papers. Two reviewers extracted data and appraised quality with relevant tools.ResultsOf 60 497 records found, 23 studies met our inclusion criteria. Fourteen studies were observational and nine were interventional. Frequently mentioned sources of information were books, leaflets, guidelines, aids and the internet. These sources were sometimes out of date and health workers reported being confused which to use. Internet access varied and even when it was available, use was limited by technical issues. Of the five electronic tools that were assessed, four had positive outcomes. Tools assisted prescribers with medicine selection and dosage calculations, which increased prescribing accuracy. The quality of reporting varied but was overall low.DiscussionStudies indicated a lack of up-to-date and relevant medicine information in low and lower middle-income settings. Internet-based sources appeared to be useful when it is possible to download content for offline use and to update when there is internet access. Electronic tools showed promise, but their accuracy needs to be validated and they should focus on giving actionable advice to guide prescribers.PROSPERO registration numberCRD42018091088.

scholarly journals Barriers and facilitators of implementation of a community cardiovascular disease prevention programme in Mukono and Buikwe districts in Uganda using the Consolidated Framework for Implementation Research

2020 ◽  
Vol 15 (1) ◽  
Author(s):  
Rawlance Ndejjo ◽  
Rhoda K. Wanyenze ◽  
Fred Nuwaha ◽  
Hilde Bastiaens ◽  
Geofrey Musinguzi
Keyword(s):  
Cardiovascular Disease ◽  
Low Income ◽  
Implementation Research ◽  
Health Workers ◽  
Scale Up ◽  
Barriers And Facilitators ◽  
Prevention Programme ◽  
Intervention Implementation ◽  
Design Quality ◽  
Middle Income

Abstract Background In low- and middle-income countries, there is an increasing attention towards community approaches to deal with the growing burden of cardiovascular disease (CVD). However, few studies have explored the implementation processes of such interventions to inform their scale up and sustainability. Using the consolidated framework for implementation research (CFIR), we examined the barriers and facilitators influencing the implementation of a community CVD programme led by community health workers (CHWs) in Mukono and Buikwe districts in Uganda. Methods This qualitative study is a process evaluation of an ongoing type II hybrid stepped wedge cluster trial guided by the CFIR. Data for this analysis were collected through regular meetings and focus group discussions (FGDs) conducted during the first cycle (6 months) of intervention implementation. A total of 20 CHWs participated in the implementation programme in 20 villages during the first cycle. Meeting reports and FGD transcripts were analysed following inductive thematic analysis with the aid of Nvivo 12.6 to generate emerging themes and sub-themes and thereafter deductive analysis was used to map themes and sub-themes onto the CFIR domains and constructs. Results The barriers to intervention implementation were the complexity of the intervention (complexity), compatibility with community culture (culture), the lack of an enabling environment for behaviour change (patient needs and resources) and mistrust of CHWs by community members (relative priority). In addition, the low community awareness of CVD (tension for change), competing demands (other personal attributes) and unfavourable policies (external policy and incentives) impeded intervention implementation. On the other hand, facilitators of intervention implementation were availability of inputs and protective equipment (design quality and packaging), training of CHWs (Available resources), working with community structures including leaders and groups (process—opinion leaders), frequent support supervision and engagements (process—formally appointed internal implementation leaders) and access to quality health services (process—champions). Conclusion Using the CFIR, we identified drivers of implementation success or failure for a community CVD prevention programme in a low-income context. These findings are key to inform the design of impactful, scalable and sustainable CHW programmes for non-communicable diseases prevention and control.

scholarly journals The community health worker as service extender, cultural broker and social change agent: a critical interpretive synthesis of roles, intent and accountability

2020 ◽  
Vol 5 (6) ◽  
pp. e002296 ◽  
Author(s):  
Marta Schaaf ◽  
Caitlin Warthin ◽  
Lynn Freedman ◽  
Stephanie M Topp
Keyword(s):  
Social Change ◽  
Health System ◽  
Community Health ◽  
Low Income ◽  
Health Workers ◽  
Change Agent ◽  
Government Accountability ◽  
Middle Income ◽  
Community Embeddedness ◽  
Critical Interpretive Synthesis

This paper is a critical interpretive synthesis of community health workers (CHWs) and accountability in low-income and middle-income countries. The guiding questions were: What factors promote or undermine CHWs as accountability agents? (and) Can these factors be intentionally fostered or suppressed to impel health system accountability? We conducted an iterative search that included articles addressing the core issue of CHWs and accountability, and articles addressing ancillary issues that emerged in the initial search, such as ‘CHWs and equity.’CHWs are intended to comprise a ‘bridge’ between community members and the formal health system. This bridge function is described in three key ways: service extender, cultural broker, social change agent. We identified several factors that shape the bridging function CHWs play, and thus, their role in fomenting health system accountability to communities, including the local political context, extent and nature of CHW interactions with other community-based structures, health system treatment of CHWs, community perceptions of CHWs, and extent and type of CHW unionisation and collectivisation.Synthesising these findings, we elaborated several analytic propositions relating to the self-reinforcing nature of the factors shaping CHWs’ bridging function; the roles of local and national governance; and the human resource and material capacity of the health system. Importantly, community embeddedness, as defined by acceptability, social connections and expertise, is a crucial attribute of CHW ability to foment local government accountability to communities.

scholarly journals How socioeconomic status moderates the stunting-age relationship in low-income and middle-income countries

2019 ◽  
Vol 4 (1) ◽  
pp. e001175 ◽  
Author(s):  
Christian Bommer ◽  
Sebastian Vollmer ◽  
S V Subramanian
Keyword(s):  
Socioeconomic Status ◽  
Low Income ◽  
Demographic And Health Surveys ◽  
Older Children ◽  
Middle Income ◽  
Age Related ◽  
Poor Households ◽  
Depth Analysis ◽  
Multifactorial Approach ◽  
Nutrition Sensitive

IntroductionReducing stunting is an important part of the global health agenda. Despite likely changes in risk factors as children age, determinants of stunting are typically analysed without taking into account age-related heterogeneity. We aim to fill this gap by providing an in-depth analysis of the role of socioeconomic status (SES) as a moderator for the stunting-age pattern.MethodsEpidemiological and socioeconomic data from 72 Demographic and Health Surveys (DHS) were used to calculate stunting-age patterns by SES quartiles, derived from an index of household assets. We further investigated how differences in age-specific stunting rates between children from rich and poor households are explained by determinants that could be modified by nutrition-specific versus nutrition-sensitive interventions.ResultsWhile stunting prevalence in the pooled sample of 72 DHS is low in children up to the age of 5 months (maximum prevalence of 17.8% (95% CI 16.4;19.3)), stunting rates in older children tend to exceed those of younger ones in the age bracket of 6–20 months. This pattern is more pronounced in the poorest than in the richest quartile, with large differences in stunting prevalence at 20 months (stunting rates: 40.7% (95% CI 39.5 to 41.8) in the full sample, 50.3% (95% CI 48.2 to 52.4) in the poorest quartile and 29.2% (95% CI 26.8 to 31.5) in the richest quartile). When adjusting for determinants related to nutrition-specific interventions only, SES-related differences decrease by up to 30.1%. Much stronger effects (up to 59.2%) occur when determinants related to nutrition-sensitive interventions are additionally included.ConclusionWhile differences between children from rich and poor households are small during the first 5 months of life, SES is an important moderator for age-specific stunting rates in older children. Determinants related to nutrition-specific interventions are not sufficient to explain these SES-related differences, which could imply that a multifactorial approach is needed to reduce age-specific stunting rates in the poorest children.

scholarly journals Community health workers and early detection of breast cancer in low-income and middle-income countries: a systematic scoping review of the literature

2020 ◽  
Vol 5 (5) ◽  
pp. e002466
Author(s):  
James O'Donovan ◽  
Ashley Newcomb ◽  
MacKenzie Clark MacRae ◽  
Dorice Vieira ◽  
Chinelo Onyilofor ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Early Detection ◽  
Scoping Review ◽  
Low Income ◽  
Health Workers ◽  
Middle Income ◽  
Middle Income Countries ◽  
Breast Cancer Early Detection ◽  
Cancer Early Detection

BackgroundBreast cancer is the leading cause of female mortality in low-income and middle-income countries (LMICs). Early detection of breast cancer, either through screening or early diagnosis initiatives, led by community health workers (CHWs) has been proposed as a potential way to address the unjustly high mortality rates. We therefore document: (1) where and how CHWs are currently deployed in this role; (2) how CHWs are trained, including the content, duration and outcomes of training; and (3) the evidence on costs associated with deploying CHWs in breast cancer early detection.MethodsWe conducted a systematic scoping review and searched eight major databases, as well as the grey literature. We included original studies focusing on the role of CHWs to assist in breast cancer early detection in a country defined as a LMIC according to the World Bank.Findings16 eligible studies were identified. Several roles were identified for CHWs including awareness raising and community education (n=13); history taking (n=7); performing clinical breast examination (n=9); making onward referrals (n=7); and assisting in patient navigation and follow-up (n=4). Details surrounding training programmes were poorly reported and no studies provided a formal cost analysis.ConclusionsDespite the relative paucity of studies addressing the role of CHWs in breast cancer early detection, as well as the heterogeneity of existing studies, evidence suggests that CHWs can play a number of important roles in breast cancer early detection initiatives in LMICs. However, if they are to realise their full potential, they must be appropriately supported within the wider health system.

scholarly journals Age patterns in overweight and wasting prevalence of under 5-year-old children from low- and middle-income countries

2021 ◽  
Author(s):  
Luiza I. C. Ricardo ◽  
Giovanna Gatica-Domínguez ◽  
Inácio Crochemore-Silva ◽  
Paulo A. R. Neves ◽  
Juliana dos Santos Vaz ◽  
...  
Keyword(s):  
Low Income ◽  
Age Groups ◽  
Demographic And Health Surveys ◽  
Older Children ◽  
Middle Income ◽  
Middle Income Countries ◽  
Multiple Indicator ◽  
Standard Deviations ◽  
Nationally Representative ◽  
Low And Middle Income

Abstract Objectives To describe how overweight and wasting prevalence varies with age among children under 5 years in low- and middle-income countries (LMICs). Methods We used data from nationally representative Demographic and Health Surveys and Multiple Indicator Cluster Surveys. Overweight and wasting prevalence were defined as the proportions of children presenting mean weight for length/height (WHZ) more than 2 standard deviations above or below 2 standard deviations from the median value of the 2006 WHO standards, respectively. Descriptive analyses include national estimates of child overweight and wasting prevalence, mean, and standard deviations of WHZ stratified by age in years. National results were pooled using the population of children aged under 5 years in each country as weight. Fractional polynomials were used to compare mean WHZ with both overweight and wasting prevalence. Results Ninety national surveys from LMICs carried out between 2010 and 2019 were included. The overall prevalence of overweight declined with age from 6.3% for infants (aged 0–11 months) to 3.0% in 4 years olds (p = 0.03). In all age groups, lower prevalence was observed in low-income compared to upper-middle-income countries. Wasting was also more frequent among infants, with a slight decrease between the first and second year of life, and little variation thereafter. Lower-middle-income countries showed the highest wasting prevalence in all age groups. On the other hand, mean WHZ was stable over the first 5 years of life, but the median standard deviation for WHZ decreased from 1.39 in infants to 1.09 in 4-year-old children (p < 0.001). For any given value of WHZ, both overweight and wasting prevalence were higher in infants than in older children. Conclusion The higher values of WHZ standard deviations in infants suggest that declining prevalence in overweight and wasting by age may be possibly due to measurement error or rapid crossing of growth channels by infants.

scholarly journals Targeting strategies of mHealth interventions for maternal health in low and middle-income countries: a systematic review protocol

BMJ Open ◽  
2018 ◽  
Vol 8 (2) ◽  
pp. e019345 ◽  
Author(s):  
Onaedo Ilozumba ◽  
Ibukun-Oluwa Omolade Abejirinde ◽  
Marjolein Dieleman ◽  
Azucena Bardají ◽  
Jacqueline E W Broerse ◽  
...  
Keyword(s):  
Maternal Health ◽  
Low Income ◽  
English Language ◽  
Health Workers ◽  
Steady Increase ◽  
Middle Income ◽  
Middle Income Countries ◽  
Ethical Approval ◽  
Registration Number ◽  
Electronic Health

IntroductionRecently, there has been a steady increase in mobile health (mHealth) interventions aimed at improving maternal health of women in low-income and middle-income countries. While there is evidence indicating that these interventions contribute to improvements in maternal health outcomes, other studies indicate inconclusive results. This uncertainty has raised additional questions, one of which pertains to the role of targeting strategies in implementing mHealth interventions and the focus on pregnant women and health workers as target groups. This review aims to assess who is targeted in different mHealth interventions and the importance of targeting strategies in maternal mHealth interventions.Methods and analysisWe will search for peer-reviewed, English-language literature published between 1999 and July 2017 in PubMed, Web of Knowledge (Science Direct, EMBASE) and Cochrane Central Registers of Controlled Trials. The study scope is defined by the Population, Intervention, Comparison and Outcomes framework: P, community members with maternal or reproductive needs; I, electronic health or mHealth programmes geared at improving maternal or reproductive health; C, other non-electronic health or mHealth-based interventions; O, maternal health measures including family planning, antenatal care attendance, health facility delivery and postnatal care attendance.Ethics and disseminationThis study is a review of already published or publicly available data and needs no ethical approval. Review results will be published in a peer-reviewed journal and presented at international conferences.PROSPERO registration numberCRD42017072280.

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