Understanding multifactorial drivers of child stunting reduction in Exemplar countries: a mixed-methods approach

Global, regional, and national progress towards the 2030 global nutrition targets and forecasts to 2050: a systematic analysis for the Global Burden of Disease Study 2021

BACKGROUND

The six global nutrition targets (GNTs) related to low birthweight, exclusive breastfeeding, child growth (ie, wasting, stunting, and overweight), and anaemia among females of reproductive age were chosen by the World Health Assembly in 2012 as key indicators of maternal and child health, but there has yet to be a comprehensive report on progress for the period 2012 to 2021. We aimed to evaluate levels, trends, and observed-to-expected progress in prevalence and attributable burden from 2012 to 2021, with prevalence projections to 2050, in 204 countries and territories.

METHODS

The prevalence and attributable burden of each target indicator were estimated by age group, sex, and year in 204 countries and territories from 2012 to 2021 in the Global Burden of Diseases, Injuries, and Risk Factors Study (GBD) 2021, the most comprehensive assessment of causes of death, disability, and risk factors to date. Country-specific relative performance to date was evaluated with a Bayesian meta-regression model that compares prevalence to expected values based on Socio-demographic Index (SDI), a composite indicator of societal development status. Target progress was forecasted from 2021 up to 2050 by modelling past trends with meta-regression using a combination of key quantities and then extrapolating future projections of those quantities.

FINDINGS

In 2021, a few countries had already met some of the GNTs: five for exclusive breastfeeding, four for stunting, 96 for child wasting, and three for child overweight, and none met the target for low birthweight or anaemia in females of reproductive age. Since 2012, the annualised rates of change (ARC) in the prevalence of child overweight increased in 201 countries and territories and ARC in the prevalence of anaemia in females of reproductive age decreased considerably in 26 countries. Between 2012 and 2021, SDI was strongly associated with indicator prevalence, apart from exclusive breastfeeding (|r-|=0·46-0·86). Many countries in sub-Saharan Africa had a decrease in the prevalence of multiple indicators that was more rapid than expected on the basis of SDI (the differences between observed and expected ARCs for child stunting and wasting were -0·5% and -1·3%, respectively). The ARC in the attributable burden of low birthweight, child stunting, and child wasting decreased faster than the ARC of the prevalence for each in most low-income and middle-income countries. In 2030, we project that 94 countries will meet one of the six targets, 21 countries will meet two targets, and 89 countries will not meet any targets. We project that seven countries will meet the target for exclusive breastfeeding, 28 for child stunting, and 101 for child wasting, and no countries will meet the targets for low birthweight, child overweight, and anaemia. In 2050, we project that seven additional countries will meet the target for exclusive breastfeeding, five for low birthweight, 96 for child stunting, nine for child wasting, and one for child overweight, and no countries are projected to meet the anaemia target.

INTERPRETATION

Based on current levels and past trends, few GNTs will be met by 2030. Major reductions in attributable burden for exclusive breastfeeding and anthropometric indicators should be recognised as huge scientific and policy successes, but the comparative lack of progress in reducing the prevalence of each, along with stagnant anaemia in women of reproductive age and widespread increases in child overweight, suggests a tenuous status quo. Continued investment in preventive and treatment efforts for acute childhood illness is crucial to prevent backsliding. Parallel development of effective treatments, along with commitment to multisectoral, long-term policies to address the determinants and causes of suboptimal nutrition, are sorely needed to gain ground.

FUNDING

Bill & Melinda Gates Foundation.

Unveiling subgroup trends of stunting and wasting in Indian children: a serial cross-sectional analysis from National Family Health Surveys 3-5

BACKGROUND

India grapples with a dual burden of child wasting and stunting and stark socio-economic and regional disparities.

OBJECTIVES

We aimed to better understand trends in the prevalence of childhood stunting and wasting, with an emphasis on its disproportionate effects on marginalized populations, by analyzing National Family Health Surveys (NFHS) data from 2005 to 2020.

METHODS

We analyzed trends in the distribution of childhood height-for-age Z (HAZ) and weight-for-height Z (WHZ) scores using anthropometric data from 3 surveys, NFHS 3, 4, and 5. We examined disparities by wealth, caste, tribe, area of residence (rural compared with urban), and sex and mapped trends against India's evolving policy landscape. We also conducted a regression analysis of HAZ and WHZ risk factors.

RESULTS

In the context of an evolving nutrition-centered policy landscape, disparities by level of wealth in both HAZ and WHZ decreased in the study period (HAZ: estimate = 0.27, confidence interval [CI]: 0.16, 0.38; and WHZ: estimate = 0.11, CI: 0.01, 0.22), though there were no improvements in disparities for marginalized castes (HAZ: estimate = 0.07, CI: 0.00, 0.13; and WHZ: estimate = 0.02, CI: -0.04, 0.08). Though they have narrowed, disparities by wealth, caste, tribe, and area of residence persist, with undernutrition at birth, as measured by HAZ and WHZ, a particularly acute problem.

CONCLUSIONS

Although there have been significant reductions in disparities by wealth in mean HAZ and WHZ scores in India, persistent disparities by caste, tribe, and area of residence necessitate reinvestments in targeted interventions. Further, despite this narrowing of disparities and overall progress against stunting, anthropometric scores in early childhood continue to be low in India, especially with regard to wasting, indicating the importance of not only maternal nutrition and care for newborns but more comprehensive efforts to address poverty and other factors that contribute to undernutrition, with a focus on vulnerable populations.

Drivers of anemia reduction among women of reproductive age in Senegal: a country case study

BACKGROUND

In Senegal, anemia prevalence among women of reproductive age (WRA) decreased from 59% in 2005 to 54% in 2017. However, determinants of reduction in disease burden under challenging public health conditions have not been studied.

OBJECTIVES

We aimed to conduct a systematic in-depth assessment of the quantitative and qualitative determinants of anemia reduction among WRA in Senegal between 2005 and 2017.

METHODS

Standard Exemplars in Global Health methodology was used for quantitative analyses using Senegal's Demographic and Health Surveys. Qualitative analyses included a systematic literature review, program/policy analysis, and interviews with key stakeholders. A final Oaxaca-Blinder decomposition analysis (OBDA) evaluated the relative contribution of direct and indirect factors.

RESULTS

Among non-pregnant women, mean hemoglobin (Hb) increased from 11.4 g/dL in 2005 to 11.7 g/dL in 2017 (P < 0.0001), corresponding to a 5%-point decrease in anemia prevalence (58% to 53%). However, inequities by geographical region, household wealth, women's educational attainment, urban compared to rural residence, and antenatal care during last pregnancy continue to persist. During this time period, several indirect nutrition programs were implemented, with stakeholders acknowledging the importance of these programs but agreeing there needs to be more consistency, evaluation, and oversight for them to be effective. Our OBDA explained 59% of the observed change in mean Hb, with family planning (25%), malaria prevention programs (17%), use of iron and folic acid (IFA) during last pregnancy (17%), and improvement in women's empowerment (12%) emerging as drivers of anemia decline, corroborating our qualitative and policy analyses.

CONCLUSIONS

Despite a reduction in anemia prevalence, anemia remains a severe public health problem in Senegal. To protect the gains achieved to date, as well as accelerate reduction in WRA anemia burden, focused efforts to reduce gender and social disparities and improve coverage of health services, such as family planning, IFA, and antimalarial programs, are needed.

What works for reducing stunting in low-income and middle-income countries? Cumulative learnings from the Global Stunting Exemplars Project

BACKGROUND

Impaired linear growth and stunting in children under 5 y is a marker of multiple deprivations in low-income and middle-income countries.

OBJECTIVES

We aimed to assess drivers and policies influencing improvements in linear growth and stunting reduction in 10 countries with annual rates of reduction in childhood stunting averaging 1.1% (range: 0.4%-1.7%) at national-level or subnational-level, and to improve a framework of action for other countries to follow.

METHODS

We used mixed methods to assess trends and patterns of improvement in linear growth in children under 5 y using available household-level data and in-depth analysis of programs and their implementation. We assessed patterns of change with multivariate regression analyses of risk factors driving stunting and affecting change. We compared results from the Oaxaca-Blinder decomposition analyses using a hierarchical approach and retrospectively assessed the appropriateness of a previously proposed 10-step process for country-level planning and implementation processes. Limited data precluded robust serial assessment of dietary intake at individual level for children and mothers.

RESULTS

Rapid reduction in childhood stunting is possible and findings across exemplar countries underscore the benefits of indirect and direct interventions in health and other social sectors. These include programs focusing on poverty alleviation; water, sanitation, and hygiene; promotion of girls' education and empowerment; and maternal nutrition. The potential benefits of family planning programs and factors contributing to gains in maternal nutrition were noted. In malarial endemic areas, malaria control programs were associated with improved childhood growth, and patterns of growth indicated continued benefits of childhood disease prevention and management strategies.

CONCLUSIONS

A systematic, evidence-informed approach to improve maternal and child health and nutrition is feasible and, with targeting, can accelerate reduction in linear growth faltering in childhood.

A mixed-methods study of the drivers of stunting reduction among children under-5 in Ghana, 2003-2017

BACKGROUND

Childhood stunting prevalence declined rapidly in Ghana in recent decades. Substantial economic growth over the same period will have contributed directly and indirectly to improved population health and nutrition in the country, but Ghana's progress in reducing stunting has outpaced that of multiple other countries with comparable or higher economic growth rates.

OBJECTIVES

We aimed to better understand Ghana's exemplary progress in stunting reduction by examining the national-, community-, household-, and individual-level factors associated with the steep decline in stunting prevalence in recent decades.

METHODS

This mixed-methods study included literature review; secondary analysis of national household survey data, including Oaxaca-Blinder decomposition analysis; primary qualitative data collection and analysis; and a policy and program review.

RESULTS

Estimated from household surveys, under-5 stunting prevalence in Ghana declined from 35.1% in 2003 to 17.5% in 2017 and mean height-for-age z-score increased by 0.50, with the country's high-burden northernmost regions achieving the most rapid progress. Our modeling predicted 64% of the observed 0.43 height-for-age z-score increase among survey index children, with increases over time in mosquito net ownership, skilled birth attendance and antenatal care coverage, mean maternal age, urban residency, and household wealth accounting for most of the improvement in child growth over time. Qualitative findings highlighted similar and additional distal (e.g., income, maternal education, employment, women's empowerment, and political stability); intermediate (e.g., water and sanitation, infrastructure); and proximal (e.g., disease prevention and control programs, maternal care, and diet improvements) factors associated with stunting reduction. Of 134 nutrition-related policies and programs identified in our review, 23 national initiatives were assessed as having contributed importantly to reducing stunting in Ghana, reflecting the effectiveness of multisectoral action.

CONCLUSIONS

Stunting reduction can be accelerated even further in Ghana through increased coverage of high-quality nutrition-specific interventions and greater health and nonhealth sector investments.

A mixed-methods study of the drivers of stunting reduction among children under five in Nigeria, 2008-2018

BACKGROUND

Although stunting reduction at the national level in Nigeria has been modest in recent decades, especially considering the country's rapid economic growth, there is much subnational variation.

OBJECTIVES

The objective of this study was to identify the factors associated with declining stunting prevalence in those states in Nigeria where the most progress was made between 2008 and 2018.

METHODS

This mixed-methods study included quantitative analysis of household survey data using regression-based Oaxaca-Blinder decomposition analysis to identify factors associated with a change in mean height-for-age z-score (HAZ) over time; deductive thematic analysis of qualitative data collected through key informant interviews and focus group discussions; and policy and program review.

RESULTS

Improvement in child linear growth over the past decade is evident in exemplar states in both the north and south of Nigeria, driven largely by the same factors. Our modeling predicted 66% of the observed +0.25 increase in mean HAZ over time in exemplar states, with nearly 60% of the predicted increase associated with improvements in non-health sector factors: parental education (43%), household wealth (8%), and household sanitation (3%). Malaria prevention was associated with an additional 29% of the predicted HAZ change. Qualitative participants highlighted insecurity, poverty, and lower education levels in some parts of the country as barriers to improving child health and nutritional status, along with insufficient human resources for health despite an increase in the number of healthcare facilities in the country. Participants identified a range of policies and programs across multiple sectors as having likely contributed to the decline in stunting prevalence.

CONCLUSIONS

A multisectoral approach to stunting reduction in Nigeria appears to have been key, with progress having been driven by both the health sector and, especially, non-health sector action.

Understanding the determinants of anemia reduction among women of reproductive age: Exemplar country case studies' methodology

BACKGROUND

Since 2000, only a few countries have substantially reduced the burden of anemia among women 15-49 y of age. The Exemplars in Anemia Reduction among Women of Reproductive Age (WRA) studied the determinants of success among these countries.

OBJECTIVES

To describe the methodology used to determine the factors associated with anemia reduction in high-performing countries, with the aim to guide policy and programmatic decisions in other countries with similar sociodemographic and health indices.

METHODS

This article describes the process used to identify countries with exemplary reduction in WRA anemia burden, compared with their peers. We describe the Exemplars in Global Health methodology, the mixed-methods approach used to identify and quantify the macro- and microlevel characteristics associated with anemia burden decline among WRA. Quantitative analyses include descriptive and equity analyses, multivariate linear regression, and Oaxaca-Blinder decomposition analysis. Qualitative analyses include in-depth interviews and focus group discussions with national, subnational, and community stakeholders, as well as review of programs and policies with the potential to impact women's health and/or nutrition, enacted in the countries over the last 20 y. A technical advisory group oversaw all research activities.

RESULTS

We identified 5 countries, namely, Mexico, Pakistan, Philippines, Uganda, and Senegal, as anemia exemplars, after considering the magnitude of anemia decline between 2000 and 2018, availability of ≥2 nationally representative anemia surveys, geographical diversity to account for the complex etiology of anemia, regional representation, and logistics of in-country work.

CONCLUSIONS

Exemplars in Anemia Reduction among WRA seeks to create awareness of how little anemia prevalence has changed globally and aims to inform and spur global efforts for improving women's health and nutrition.

Social sector drivers and stunting reduction in Pakistan: A subnational analysis

BACKGROUND

Poor nutrition remains a problem in Pakistan, and despite economic growth, stunting reduction is slow with subnational variations. Generally, stunting prevalence is lower in Khyber Pakhtunkhwa (KP) and Northern Punjab than in Sindh and Balochistan.

OBJECTIVES

Our study aimed to identify and explore key drivers and barriers underlying subnational changes in stunting between 2011 and 2018.

METHODS

We used a mixed-methods approach to determine the drivers of and barriers to change in stunting [height-for-age z-score (HAZ) < -2], including Oaxaca-Blinder decomposition and multivariable hierarchical modeling, using representative household nutrition surveys in 2011 and 2018. These findings were triangulated with a literature review, program and policy analysis, and primary qualitative research to generate a narrative of change.

RESULTS

National decline in stunting prevalence was limited (2011: 42.3%, 2018: 40.2%); however, progress varied between provinces with significant stunting declines in KP and Northern and Southern Punjab [0.49 standard deviation (SD) gain in HAZ between 2011 and 2018 (43.0% to 38.3%)]. Factors driving HAZ increases were improvements in socioeconomic status (0.13 SD), coverage of Pakistan's income support program targeting females (0.05 SD), and a combination of other direct and indirect health and nutrition investments (0.1 SD). Our policy analysis and qualitative findings also supported these findings by identifying poverty and increased food prices as a barrier to accessing nutritious foods.

CONCLUSIONS

Although national progress in stunting reduction remains slow, regions of KP, Northern, and Southern Punjab have demonstrated significant reductions in child stunting prevalence between 2011 and 2018. Our analysis supports continued investments in social sector programs targeting females' health and status and strengthening the reach and quality of existing maternal and child health and nutrition programs.

Predictors of Stunting and Pathway Analysis for Linear Growth among Children Aged Two to Three Years after a Trial of Small-Quantity Lipid-Based Nutrient Supplements and Home-Installed Growth Charts in Three Districts in Zambia

BACKGROUND

Globally, 148 million children aged <5 y are stunted, with risk factors varying by context. Our "Impact of Growth Charts and Nutritional Supplements on Child Growth in Zambia" (ZamCharts) trial observed persistently high rates of stunting in all treatment groups after 18-mo of intervention with monthly distributions of small-quantity lipid-based nutrient supplements (SQ-LNS) and/or installation of a wall-mounted growth chart in children's homes.

OBJECTIVES

We sought to identify determinants of stunting and height-for-age z-score in children aged 27-36 mo who participated in the ZamCharts endline survey (n = 1911).

METHODS

Multilevel, log-binomial models were used to estimate univariable and multivariable prevalence ratios for predictors of stunting. Multilevel models were also used to predict height-for-age z-score (HAZ) with and without baseline HAZ (assessed at ages 211 mo). We also conducted a path analysis using covariance analysis of linear structural equations to assess underlying and modifiable risk factors for impaired linear growth.

RESULTS

Significant predictors of stunting in the multivariable model included low asset ownership, being male, using biomass as cooking fuel, lower maternal height, a mother with ≤ primary education, lower baseline HAZ, and not being randomly assigned to SQ-LNS. Significant predictors of a lower mean HAZ in the full multivariable models included all the same risk factors that predicted stunting but also living in an urban area, having ≥1 child aged <5 y in the household, and diarrhea in the previous 2 wk. The multivariable model explained 48% of variability in endline HAZ; the strongest predictor was baseline HAZ, which explained 29% of endline HAZ variability in the univariable model.

CONCLUSIONS

Preventing stunting in Zambia will require investments in early life (pre- and postnatal) determinants of growth trajectory as well as improving complementary feeding practices and addressing risk factors for infectious diseases; SQ-LNS can also improve linear growth and reduce stunting.

An audit of completeness of Road to Health Booklet at a community health centre in South Africa

BACKGROUND

 For continuity and quality of care, accurate record-keeping is crucial. Complete care is facilitated by completing a child's Road to Health Booklet (RTHB) as well as prompt interpretation and appropriate action. This could result in a decrease in child morbidity and mortality.

AIM

 The study was aimed at assessing the completeness of the RTHB of children younger than 5 years.

SETTING

 Temba Community Health Centre (CHC), Tshwane District, South Africa.

METHODS

 A cross-sectional study was conducted using a data collection sheet adopted from previous studies.

RESULTS

 Children less than 1-year-old accounted for 70.2% of the 255 RTHBs. The mean ± s.d. age was 11.5 ±10.76 months. The study finding showed no section was 100% fully completed. Of the 255 records studied, 38 (14.9%) human immunodeficiency virus (HIV)-exposed babies were recorded at birth, 39.5% were negative at 6 weeks and 60.5% were not recorded. Ninety-one (35.7%) children were unexposed. The HIV status of 126 (49.4%) children was not recorded. Sixty-six per cent (66%) of recorded maternal syphilis was negative. Immunisations, weight-for-age, neonatal information, and details of the family and child were fully completed in 80% of the booklets. Developmental screening was 17.2% completed, and oral health was 1.6% partially completed. The overall completeness was 40.3%.

CONCLUSION

 The completeness of RTHBs was found to be suboptimal.Contribution: The present study's findings should serve as a reminder that healthcare practitioners must complete RTHBs in their totality in order to improve continuity and care quality, as the results indicated that RTHB completion was below ideal.

Maternal knowledge on nutritional-focused nurturing care and associated factors among women with stunted children aged 6-23 months in Yogyakarta, Indonesia: A cross-sectional study

Background

Childhood stunting poses serious long-term risks to cognitive development, education, and adult productivity. While research has explored stunting's causes and effects, there is a lack of focus on maternal knowledge of nutrition-focused nurturing care for stunted children. This gap limits the ability to design effective interventions that target improved caregiving practices.

Objective

This study aimed to assess maternal knowledge of nutrition-focused nurturing care and explore associated factors, including child gender, maternal age, education, income, and prior exposure to nurturing care information, among mothers of stunted children aged 6-23 months in Indonesia.

Methods

A cross-sectional study was conducted with 73 mothers in Kulon Progo, Yogyakarta. Data were collected from February to March 2024 using a validated self-assessment questionnaire covering four domains: responsive caregiving, early learning opportunities, safety and security, and supportive caregiver well-being. Statistical analyses, including t-tests and one-way ANOVA, were performed.

Results

Overall maternal knowledge of nurturing care was high, with a mean score of 25.15 (SD = 4.72). Factors significantly associated with higher knowledge included having male children (p = 0.017), being aged 30-34 years (p = 0.035), possessing higher education levels (p = 0.002), and prior exposure to nurturing care information (p <0.001). Family income significantly influenced knowledge in the domain of early learning opportunities (p = 0.006), though not in other areas.

Conclusion

Maternal knowledge of nutrition-focused nurturing care was influenced by child gender, maternal age, education, income, and prior exposure to nurturing care information. These findings emphasize the importance of focused educational interventions in nursing practice to enhance maternal knowledge. Addressing these factors can help align nursing strategies better to support the healthy growth and development of children.

Effect of nutrition assessment, counselling and support integration on mother-infant nutritional status, practices and health in Tororo and Butaleja districts, Uganda: A comparative non-equivalent quasi-experimental study

BACKGROUND

Malnutrition remains a health challenge for women aged 15 to 49 years and their infants. While Nutrition Assessment Counselling and Support (NACS) is considered a promising strategy, evidence of its effectiveness remains scanty. This study assessed the effect of the comprehensive NACS package on the mother-infant practices, health and nutrition outcomes in two districts in Eastern Uganda.

METHODS

A comparative non-equivalent quasi-experimental design was employed with two groups; Comprehensive NACS (Tororo) and Routine NACS (Butaleja). Pregnant mothers were enrolled spanning various trimesters and followed through the antenatal periods and post-delivery to monitor their health and nutrition status. Infants were followed for feeding practices, health and nutritional status at birth and weeks 6, 10, 14 and at months 6, 9 and 12 post-delivery. Propensity score matching ensured study group comparability. The NACS effect was estimated by nearest neighbour matching and the logistic regression methods. Statistical analysis utilised STATA version 15 and R version 4.1.1.

RESULTS

A total of 666/784 (85%) with complete data were analysed (routine: 412, comprehensive: 254). Both groups were comparable by mothers' age, Mid Upper Arm Circumference, prior antenatal visits, meal frequency, micronutrient supplementation and instances of maternal headache, depression and diarrhoea. However, differences existed in gestation age, income, family size, education and other living conditions. Comprehensive NACS infants exhibited higher infant birth weights, weight-for-age z-scores at the 3rd -6th visits (p < 0.001), length-for-age z scores at the 4th -7th visits (p < 0.001) and weight-for-length z-scores at the 3rd - 5th (p < = 0.001) visits. Despite fewer episodes of diarrhoea and fever, upper respiration infections were higher.

CONCLUSIONS

The comprehensive NACS demonstrated improved mother-infant nutritional and other health outcomes suggesting the need for integrated and holistic care for better maternal, infant and child health.

Drivers of success in global health outcomes: A content analysis of Exemplar studies

Applying a positive outlier lens is one effective approach for generating evidence to inform global health policy, program, and funding decisions. Exemplars in Global Health (EGH) is a program that studies positive outlier countries that have made extraordinary progress in health outcomes (despite limited resources) and disseminates their successes through multiple types of outputs. To date, EGH has studied, or is studying, 14 global health topics in 28 countries. This paper aims to identify findings, summarized as themes and sub-themes, that appear among all completed EGH studies. We developed a conceptual framework and used a content analysis approach to identify the top thematic areas that appear as drivers for programmatic success across EGH studies that were completed between June 2020-May 2023. The EGH studies (N = 31) spanned six topics including under-five child mortality (n = 6), childhood stunting (n = 5), community health workers (CHW) (n = 4), vaccine delivery (n = 3), COVID-19 response (n = 6), and newborn and maternal mortality reduction (n = 7) across 19 countries in sub-Saharan Africa, Latin America, South and Central Asia, and the Caribbean regions. Top drivers of success were defined as those critical or catalytic in achieving the intended outcome. Eight key drivers were identified: (1) efficient data collection and use for decision-making, (2) strong political commitment and health leadership, (3) effective stakeholder coordination, (4) a local, connected, and capacitated workforce, (5) intentional women's empowerment and engagement, (6) effective adoption and implementation of national policies, (7) effective and sustainable financing, and (8) equitable, efficient outreach and targeting. These cross-cutting drivers span a broad range of development outcomes, sectors, and populations, and indicate a need to effectively integrate people, systems, and sectors to improve global health outcomes. Findings from this study aim to support peer learning among countries and support evidence-based decision-making for funders, policymakers, and other key stakeholders.

Accelerating action to reduce anemia: Review of causes and risk factors and related data needs

Anemia is a major public health concern. Young children, menstruating adolescent girls and women, and pregnant women are among the most vulnerable. Anemia is the consequence of a wide range of causes, including biological, socioeconomic, and ecological risk factors. Primary causes include: iron deficiency; inherited red blood cell disorders; infections, such as soil-transmitted helminthiasis, schistosomiasis, and malaria; gynecological and obstetric conditions; and other chronic diseases that lead to blood loss, decreased erythropoiesis, or destruction of erythrocytes. The most vulnerable population groups in low- and middle-income countries are often at the greatest risk to suffer from several of these causes simultaneously as low socioeconomic status is linked with an increased risk of anemia through multiple pathways. Targeted and effective action is needed to prevent anemia. Understanding the causes and risk factors of anemia for different population subgroups within a country guides the design and implementation of effective strategies to prevent and treat anemia. A coordinated approach across various expert groups and programs could make the best use of existing data or could help to determine when newer and more relevant data may need to be collected, especially in countries with a high anemia burden and limited information on the etiology of anemia.

Assessing Potential Exemplars in Reducing Zero-Dose Children: A Novel Approach for Identifying Positive Outliers in Decreasing National Levels and Geographic Inequalities in Unvaccinated Children

BACKGROUND

Understanding past successes in reaching unvaccinated or "zero-dose" children can help inform strategies for improving childhood immunization in other settings. Drawing from positive outlier methods, we developed a novel approach for identifying potential exemplars in reducing zero-dose children.

METHODS

Focusing on 2000-2019, we assessed changes in the percentage of under-one children with no doses of the diphtheria-tetanus-pertussis vaccine (no-DTP) across two geographic dimensions in 56 low- or lower-middle-income countries: (1) national levels; (2) subnational gaps, as defined as the difference between the 5th and 95th percentiles of no-DTP prevalence across second administrative units. Countries with the largest reductions for both metrics were considered positive outliers or potential 'exemplars', demonstrating exception progress in reducing national no-DTP prevalence and subnational inequalities. Last, so-called "neighborhood analyses" were conducted for the Gavi Learning Hub countries (Nigeria, Mali, Uganda, and Bangladesh), comparing them with countries that had similar no-DTP measures in 2000 but different trajectories through 2019.

RESULTS

From 2000 to 2019, the Democratic Republic of the Congo, Ethiopia, and India had the largest absolute decreases for the two no-DTP dimensions-national prevalence and subnational gaps-while Bangladesh and Burundi registered the largest relative reductions for each no-DTP metric. Neighborhood analyses highlighted possible opportunities for cross-country learning among Gavi Learning Hub countries and potential exemplars in reducing zero-dose children.

CONCLUSIONS

Identifying where exceptional progress has occurred is the first step toward better understanding how such gains could be achieved elsewhere. Further examination of how countries have successfully reduced levels of zero-dose children-especially across variable contexts and different drivers of inequality-could support faster, sustainable advances toward greater vaccination equity worldwide.

The Multidimension of Malnutrition among School Children in a Rural Area, South Africa: A Mixed Methods Approach

To address childhood malnutrition, the use of multifaceted methodologies, such as mixed methods research, is required to inform effective and contextual interventions. However, this remains limited in studying malnutrition among school children in a South African context, notwithstanding its persistence. We adopted a convergent parallel mixed methods design to best understand the magnitude of malnutrition through multilevel influences in a rural area. A quantitative survey determined the magnitude of malnutrition and associated factors among school children and their mothers (n = 508), parallel to a qualitative study, which explored mothers' insights into the influences of child growth and nutrition in interviews using seven focus group discussions. Mixed methods integration was achieved through convergence of the quantitative constructs developed from measured variables for malnutrition and related factors with ten emergent qualitative themes using a joint display analysis to compare the findings and generate meta-inferences. Qualitative themes on food unavailability and affordability, poor feeding beliefs and practices, and decision to purchase foods were consistent with the quantified poor socio-demographic status of mothers. Furthermore, the qualitative data explained the high prevalence of undernutrition among children but did not corroborate the high estimated households' food security in the quantitative survey. The misperceptions of mothers on child growth agreed with limited food knowledge as well as lack of knowledge on child growth gathered during the survey. Moreover, mothers believed that their children were growing well despite the high presence of childhood undernutrition. Mothers further overrated the effectiveness of school feeding programmes in providing healthy food to children as compared to their household food. They reported high incidence of food allergies, diarrhea, and vomiting caused by food consumed at school which resulted in children not eating certain foods. This might have impacted on the nutritional status of children since mothers depended on the school feeding program to provide food for their children. The ambiguity of cultural influences in relation to child growth was evident and substantiated during qualitative interview. Mixed methods integration offered a better understanding of malnutrition from empirical findings on interrelated factors at child, maternal, household, and school levels. This study points to a need for multilevel, informed, and contextual multidimensional interventions to contribute towards addressing childhood malnutrition in South Africa.

Determining the Factors That Influence Stunting during Pandemic in Rural Indonesia: A Mixed Method

OBJECTIVE

Pandemic causes an increase in the poverty rate. The consequences will be many, including the birth of stunting babies. The COVID-19 pandemic has had an impact on stunting. Analyzing the factors that cause stunting during a pandemic will provide suggestions for effective stunting prevention strategies at the national, regional, community, and household levels. This study aims to determine the factors that influence stunting during the pandemic.

METHOD

We use mixed methods. The respondents of this study were 152 mothers of the Maternal and Child Nutrition Security project, and the sampling technique is Cluster Sampling. Quantitatively using a baseline survey whose analysis uses multiple logistic regression to determine the unadjusted and adjusted odds ratio. The qualitative data used focus group discussions which were analyzed using Nvivo 12 with a questionnaire, and anthropometric measurements of children from surveyed households.

RESULTS

This study summarizes the multivariate analysis of stunting determinants in the pandemic era, revealing statistically significant interactions between household sanitation facilities and household water treatment. Significant risk factors for severe stunting during the pandemic were male gender, older child age, coming from a low socioeconomic quintile, not participating in prenatal care at a health facility, and mother's involvement in choices about what to prepare for Community House. The FGDs identified misinformation about childcare and consumption of sweetened condensed milk as significant contributors to child malnutrition.

CONCLUSIONS

Lack of sanitation facilities and untreated water are contributing factors. Water, sanitation, and hygiene initiatives must be included into Indonesian policies and programs to combat child stunting during a pandemic. The need for further research related to government assistance for improving toddler nutrition, as well as the relationship between WASH and linear development in early infancy should be explored.

Malaria reduction drives childhood stunting decline in Uganda: a mixed-methods country case study

BACKGROUND

Uganda has achieved a considerable reduction in childhood stunting over the past 2 decades, although accelerated action will be needed to achieve 2030 targets.

OBJECTIVES

This study assessed the national, community, household, and individual-level drivers of stunting decline since 2000, along with direct and indirect nutrition policies and programs that have contributed to nutrition change in Uganda.

METHODS

This mixed-methods study used 4 different approaches to determine the drivers of stunting change over time: 1) a scoping literature review; 2) quantitative data analyses, including Oaxaca-Blinder decomposition and difference-in-difference multivariable hierarchical modeling; 3) national- and community-level qualitative data collection and analysis; and 4) analysis of key direct and indirect nutrition policies, programs, and initiatives.

RESULTS

Stunting prevalence declined by 14% points from 2000 to 2016, although geographical, wealth, urban/rural, and education-based inequalities persist. Child growth curves demonstrated substantial improvements in child height-for-age z-scores (HAZs) at birth, reflecting improved maternal nutrition and intrauterine growth. The decomposition analysis explained 82% of HAZ change, with increased coverage of insecticide-treated mosquito nets (ITNs; 35%), better maternal nutrition (19%), improved maternal education (14%), and improved maternal and newborn healthcare (11%) being the most critical factors. The qualitative analysis supported these findings, and also pointed to wealth, women's empowerment, cultural norms, water and sanitation, dietary intake/diversity, and reduced childhood illness as important. The 2011 Uganda Nutrition Action Plan was an essential multisectoral strategy that shifted nutrition out of health and mainstreamed it across related sectors.

CONCLUSIONS

Uganda's success in stunting reduction was multifactorial, but driven largely through indirect nutrition strategies delivered outside of health. To further improve stunting, it will be critical to prioritize malaria-control strategies, including ITN distribution campaigns and prevention/treatment approaches for mothers and children, and deliberately target the poor, least educated, and rural populations along with high-burden districts.

Anemia prevalence in women of reproductive age in low- and middle-income countries between 2000 and 2018

Anemia is a globally widespread condition in women and is associated with reduced economic productivity and increased mortality worldwide. Here we map annual 2000-2018 geospatial estimates of anemia prevalence in women of reproductive age (15-49 years) across 82 low- and middle-income countries (LMICs), stratify anemia by severity and aggregate results to policy-relevant administrative and national levels. Additionally, we provide subnational disparity analyses to provide a comprehensive overview of anemia prevalence inequalities within these countries and predict progress toward the World Health Organization's Global Nutrition Target (WHO GNT) to reduce anemia by half by 2030. Our results demonstrate widespread moderate improvements in overall anemia prevalence but identify only three LMICs with a high probability of achieving the WHO GNT by 2030 at a national scale, and no LMIC is expected to achieve the target in all their subnational administrative units. Our maps show where large within-country disparities occur, as well as areas likely to fall short of the WHO GNT, offering precision public health tools so that adequate resource allocation and subsequent interventions can be targeted to the most vulnerable populations.

Anemia among Women of Reproductive Age: An Overview of Global Burden, Trends, Determinants, and Drivers of Progress in Low- and Middle-Income Countries

Relatively little progress has been made in reducing anemia prevalence among women of reproductive age (WRA anemia). Interventions, policies and programs aimed at reducing WRA anemia have the potential to improve overall not only women’s, but also children’s health and nutrition outcomes. To our knowledge, this is the first review that aimed to compile evidence on the determinants and drivers of WRA anemia reduction in low- and middle-income countries (LMICs). We synthesized the available evidence on the determinants and drivers, including government policies and programs, of WRA anemia and their mitigation strategies across a wide range of countries and geographies, thus contributing to the complex and multifactorial etiology of anemia. We carried out a systematic review of published peer-reviewed and grey literature assessing national or subnational decline in WRA anemia prevalence and the associated drivers in LMICs. Among the 21 studies meeting our inclusion criteria, proximal determinants of healthcare utilization, especially during pregnancy and with the use of contraceptives, were strong drivers of WRA anemia reduction. Changes in other maternal characteristics, such as an increase in age at first pregnancy, BMI, birth spacing, and reduction in parity, were associated with modest improvements in anemia prevalence. Access to fortified foods, especially iron-fortified flour, was also a predictor of a decrease in WRA anemia. Of the intermediate determinants, an increase in household wealth, educational attainment and access to improved sanitation contributed significantly to WRA anemia reduction. Although several common determinants emerged at the proximal and intermediate levels, the set of anemia determinants and the strength of the association between each driver and WRA anemia reduction were unique in each setting included in this review. Further research is needed to provide targeted recommendations for each country and region where WRA anemia prevalence remains high.

Effective interventions to address maternal and child malnutrition: an update of the evidence

Malnutrition-consisting of undernutrition, overweight and obesity, and micronutrient deficiencies-continues to afflict millions of women and children, particularly in low-income and middle-income countries (LMICs). Since the 2013 Lancet Series on maternal and child nutrition, evidence on the ten recommended interventions has increased, along with evidence of newer interventions. Evidence on the effectiveness of antenatal multiple micronutrient supplementation in reducing the risk of stillbirths, low birthweight, and babies born small-for-gestational age has strengthened. Evidence continues to support the provision of supplementary food in food-insecure settings and community-based approaches with the use of locally produced supplementary and therapeutic food to manage children with acute malnutrition. Some emerging interventions, such as preventive small-quantity lipid-based nutrient supplements for children aged 6-23 months, have shown positive effects on child growth. For the prevention and management of childhood obesity, integrated interventions (eg, diet, exercise, and behavioural therapy) are most effective, although there is little evidence from LMICs. Lastly, indirect nutrition strategies, such as malaria prevention, preconception care, water, sanitation, and hygiene promotion, delivered inside and outside the health-care sector also provide important nutritional benefits. Looking forward, greater effort is required to improve intervention coverage, especially for the most vulnerable, and there is a crucial need to address the growing double burden of malnutrition (undernutrition, and overweight and obesity) in LMICs.

How countries can reduce child stunting at scale: lessons from exemplar countries

BACKGROUND

Child stunting and linear growth faltering have declined over the past few decades and several countries have made exemplary progress.

OBJECTIVES

To synthesize findings from mixed methods studies of exemplar countries to provide guidance on how to accelerate reduction in child stunting.

METHODS

We did a qualitative and quantitative synthesis of findings from existing literature and 5 exemplar country studies (Nepal, Ethiopia, Peru, Kyrgyz Republic, Senegal). Methodology included 4 broad research activities: 1) a series of descriptive analyses of cross-sectional data from demographic and health surveys and multiple indicator cluster surveys; 2) multivariable analysis of quantitative drivers of change in linear growth; 3) interviews and focus groups with national experts and community stakeholders and mothers; and 4) a review of policy and program evolution related to nutrition.

RESULTS

Several countries have dramatically reduced child stunting prevalence, with or without closing geographical, economic, and other population inequalities. Countries made progress through interventions from within and outside the health sector, and despite significant heterogeneity and differences in context, contributions were comparable from health and nutrition sectors (40% of change) and other sectors (50%), previously called nutrition-specific and -sensitive strategies. Improvements in maternal education, maternal nutrition, maternal and newborn care, and reductions in fertility/reduced interpregnancy intervals were strong contributors to change. A roadmap to reducing child stunting at scale includes several steps related to diagnostics, stakeholder consultations, and implementing direct and indirect nutrition interventions related to the health sector and nonhealth sector .

CONCLUSIONS

Our results show that child stunting reduction is possible even in diverse and challenging contexts. We propose that our framework of organizing nutrition interventions as direct/indirect and inside/outside the health sector should be considered when mapping causal pathways of child stunting and planning interventions and strategies to accelerate stunting reduction to achieve the 2030 Sustainable Development Goals.

Drivers of stunting reduction in the Kyrgyz Republic: A country case study

BACKGROUND

Chronic malnutrition among infants and children continues to represent a global public health concern. The Kyrgyz Republic has achieved rapid declines in stunting over the last 20 y, despite modest increases in gross domestic product per capita.

OBJECTIVE

This study aimed to conduct a systematic, in-depth assessment of national, community, household, and individual drivers of nutrition change and stunting reduction, as well as nutrition-specific and -sensitive policies and programs, in the Kyrgyz Republic.

METHODS

This mixed methods study employed 4 inquiry methods, including: 1) a systematic scoping literature review; 2) retrospective quantitative data analyses, including linear regression multivariable hierarchical modeling, difference-in-difference analysis, and Oaxaca-Blinder decomposition; 3) qualitative data collection and analysis; and 4) analysis of key nutrition-specific and -sensitive policies and programs.

RESULTS

Stunting prevalence has decreased in the Kyrgyz Republic, however, subnational variations and inequities persist. Child growth Victora curves show improvements in height-for-age z-scores (HAZ) for children in the Kyrgyz Republic between 1997 and 2014, indicating increased intrauterine growth and population health improvements. The decomposition analysis explained 88.9% (0.637 SD increase) of the predicted change in HAZ for children under 3 y (1997-2012). Key factors included poverty (61%), maternal nutrition (14%), paternal education (6%), fertility (6%), maternal age (3%), and wealth accumulation (2%). Qualitative analysis revealed poverty reduction, increased migration and remittances, food security, and maternal nutrition as key drivers of stunting decline. Systematic scoping literature review findings supported quantitative and qualitative results, and indicated that land reforms and improved food security represented important factors. Key nutrition-specific and -sensitive policies and programs implemented involved breastfeeding promotion, social protection schemes, and land and health sector reforms.

CONCLUSIONS

Improvements in stunting were achieved amidst political and economic changes. Multilevel enablers, including poverty reduction, improved food security, and introduction of land and health reforms have contributed to improvements in health, nutrition, and stunting among children in the Kyrgyz Republic.

Drivers of stunting reduction in Senegal: a country case study

BACKGROUND

Senegal has been an exemplar country in the West African region, reducing child stunting prevalence by 17.9% from 1992 to 2017.

OBJECTIVES

In this study, we aimed to conduct a systematic in-depth assessment of factors at the national, community, household, and individual levels to determine the key enablers of Senegal's success in reducing stunting in children <5 y old between 1992/93 and 2017.

METHODS

A mixed methods approach was implemented, comprising quantitative data analysis, a systematic literature review, creation of a timeline of nutrition-related programs, and qualitative interviews with national and regional stakeholders and mothers in communities. Demographic and Health Surveys and Multiple Indicator Cluster Surveys were used to explore stunting inequalities and factors related to the change in height-for-age z-score (HAZ) using difference-in-difference linear regression and the Oaxaca-Blinder decomposition method.

RESULTS

Population-wide gains in average child HAZ and stunting prevalence have occurred from 1992/93 to 2017. Stunting prevalence reduction varied by geographical region and prevalence gaps were reduced slightly between wealth quintiles, maternal education groups, and urban compared with rural residence. Statistical determinants of change included improvements in maternal and newborn health (27.8%), economic improvement (19.5%), increases in parental education (14.9%), and better piped water access (8.1%). Key effective nutrition programs used a community-based approach, including the Community Nutrition Program and the Nutrition Enhancement Program. Stakeholders felt sustained political will and multisectoral collaboration along with improvements in poverty, women's education, hygiene practices, and accessibility to health services at the community level reduced the burden of stunting.

CONCLUSIONS

Senegal's success in the stunting decline is largely attributed to the country's political stability, the government's prioritization of nutrition and execution of nutrition efforts using a multisectoral approach, improvements in the availability of health services and maternal education, access to piped water and sanitation facilities, and poverty reduction. Further efforts in the health, water and sanitation, and agriculture sectors will support continued success.