Reducing stunting by improving maternal, infant and young child nutrition in regions such as South Asia: evidence, challenges and opportunities

The Effectiveness of Nutritional Interventions Implemented through Lady Health Workers on the Reduction of Stunting in Children under 5 in Pakistan: The Difference-in-Difference Analysis

In Pakistan, the 2018 National Nutrition Survey reported that 40% of children under five years old were stunted. This study assessed the effectiveness of nutritional supplementation in reducing stunting among children under five years old in two rural districts in Sindh, Pakistan. This was a mixed-method quasi-experimental study comprising intervention and control populations, with 3397 and 3277 children under five years old participating in the baseline and end-line surveys, respectively. The study areas were similar in terms of demographic and economic circumstances. In the intervention group, pregnant and lactating women (first six months post-partum) received wheat soy blend, children 6-23 months old received Wawamum (lipid-based supplement), and children 24-59 months old received micronutrient powders, all through lady health workers. This was underpinned by nutrition behaviour change communication for appropriate complementary feeding practices and hygiene promotion targeted at primary caregivers. The control group received no intervention. The impact was assessed using the difference-in-difference analysis with kernel propensity score matching to adjust the differences among the control and intervention populations. The overall DID analysis indicated that the intervention did not significantly reduce the prevalence of stunting (under 5 years) [DID = -5.1, p = 0.079]. The adjusted DID indicated a significant decrease of 13% [DID = -13.0, p = 0.001] in the number of stunted children 24-59 months of age at the endline survey. A significant reduction in underweight among children 24-59 months old was also observed (DID = -9.4%, p = 0.014). In conclusion, this evidence further establishes that nutrient uptake through an intervention for a short duration cannot effectively reduce stunting. It requires continuous nutritional supplementation for mothers during the pregnancy and an initial six months of lactation and then nutritional supplementation for children 6-59 months of age underpinned by effective behaviour change communication targeting mothers and other caregivers for improving complementary feeding practices and hygiene promotion.

A microbiota-directed complementary food intervention in 12-18-month-old Bangladeshi children improves linear growth

BACKGROUND

Globally, stunting affects ∼150 million children under five, while wasting affects nearly 50 million. Current interventions have had limited effectiveness in ameliorating long-term sequelae of undernutrition including stunting, cognitive deficits and immune dysfunction. Disrupted development of the gut microbiota has been linked to the pathogenesis of undernutrition, providing potentially new treatment approaches.

METHODS

124 Bangladeshi children with moderate acute malnutrition (MAM) enrolled (at 12-18 months) in a previously reported 3-month RCT of a microbiota-directed complementary food (MDCF-2) were followed for two years. Weight and length were monitored by anthropometry, the abundances of bacterial strains were assessed by quantifying metagenome-assembled genomes (MAGs) in serially collected fecal samples and levels of growth-associated proteins were measured in plasma.

FINDINGS

Children who had received MDCF-2 were significantly less stunted during follow-up than those who received a standard ready-to-use supplementary food (RUSF) [linear mixed-effects model, βtreatment group x study week (95% CI) = 0.002 (0.001, 0.003); P = 0.004]. They also had elevated fecal abundances of Agathobacter faecis, Blautia massiliensis, Lachnospira and Dialister, plus increased levels of a group of 37 plasma proteins (linear model; FDR-adjusted P < 0.1), including IGF-1, neurotrophin receptor NTRK2 and multiple proteins linked to musculoskeletal and CNS development, that persisted for 6-months post-intervention.

INTERPRETATION

MDCF-2 treatment of Bangladeshi children with MAM, which produced significant improvements in wasting during intervention, also reduced stunting during follow-up. These results suggest that the effectiveness of supplementary foods for undernutrition may be improved by including ingredients that sponsor healthy microbiota-host co-development.

FUNDING

This work was supported by the BMGF (Grants OPP1134649/INV-000247).

Analysis of Malnutrition among Children under Five Years across Contrasting Agroecosystems of Northwest Ethiopia: Application of Structural Equation Modeling

Child malnutrition remains a public health challenge in developing countries, but a comprehensive understanding of its burden and its determinants in specific local contexts is generally lacking. This study examined the prevalence of malnutrition and its determinants among children aged <5 years across contrasting agroecosystems in northwest Ethiopia. A community-based cross-sectional study involving 400 respondents was employed. Data were collected through semi-structured questionnaires and anthropometric measurements, complemented with focus group discussions and key informant interviews. The direct and indirect effects of the determinants of malnutrition were examined using structural equation modeling (SEM). The overall prevalence of child malnutrition, measured using the Composite Index of Anthropometric Failure, was 49%, with notable variation across agroecosystems (from 36.1% [midland with red soil] to 59% [lowland and valley fragmented]). Disease experience had significant positive direct effects on malnutrition. Dietary intake had negative and significant total (direct and indirect) effects on malnutrition, partially mediated through disease experience. Serial mediation in SEM analysis revealed significant indirect relationships between malnutrition and food security, feeding and care practices, household environment, health services, maternal diet, maternal empowerment, household wealth, and nutrition-sensitive agricultural practices. In conclusion, child malnutrition was highly prevalent and higher among children in the lowland and valley fragmented agroecosystem, characterized by unfavorable agro-climatic conditions, lower wealth status, poor health services access, and higher disease (particularly malaria) exposure. This study demonstrates the dynamics and multifaceted nature of malnutrition, highlighting the importance of considering geographical differences when planning interventions for childhood malnutrition and its determinants.

Prevalence of Children Aged 6 to 23 Months Who Did Not Consume Animal Milk, Formula, or Solid or Semisolid Food During the Last 24 Hours Across Low- and Middle-Income Countries

Importance

The introduction of solid or semisolid foods alongside breast milk plays a vital role in meeting nutritional requirements during early childhood, which is crucial for child growth and development. Understanding the prevalence of zero-food children (defined for research purposes as children aged 6 to 23 months who did not consume animal milk, formula, or solid or semisolid food during the last 24 hours) is essential for targeted interventions to improve feeding practices.

Objective

To estimate the percentage of zero-food children in 92 low- and middle-income countries.

Design, Setting, and Participants

This cross-sectional study analyzed nationally representative cross-sectional household data of children aged 6 to 23 months from the Demographic and Health Surveys and the Multiple Indicator Cluster Surveys conducted between May 20, 2010, and January 27, 2022. Data were obtained from 92 low- and middle-income countries. Standardized procedures were followed to ensure data comparability and reliability. Both percentage and number of zero-food children were estimated.

Main Outcomes and Measures

The outcome studied was defined as a binary variable indicating children aged 6 to 23 months who had not been fed any animal milk, formula, or solid or semisolid foods during the 24 hours before each survey, as reported by the mother or caretaker.

Results

A sample of 276 379 children aged 6 to 23 months (mean age, 14.2 months [95% CI, 14.15-14.26 months]) in 92 low- and middle-income countries was obtained, of whom 51.4% (95% CI, 51.1%-51.8%) were boys. The estimated percentage of zero-food children was 10.4% (95% CI, 10.1%-10.7%) in the pooled sample, ranging from 0.1% (95% CI, 0%-0.6%) in Costa Rica to 21.8% (95% CI, 19.3%-24.4%) in Guinea. The prevalence of zero-food children was particularly high in West and Central Africa, where the overall prevalence was 10.5% (95% CI, 10.1%-11.0%), and in India, where the prevalence was 19.3% (95% CI, 18.9%-19.8%). India accounted for almost half of zero-food children in this study.

Conclusions and Relevance

In this cross-sectional study of 276 379 children aged 6 to 23 months, substantial disparities in the estimates of food consumption across 92 low- and middle-income countries were found. The prevalence of zero-food children underscores the need for targeted interventions to improve infant and young child feeding practices and ensure optimal nutrition during this critical period of development. The issue is particularly urgent in West and Central Africa and India.

Determinants of child stunting in the dryland area of East Nusa Tenggara Province, Indonesia: insights from a national-level survey

Stunting remains a critical public health issue in Indonesia, particularly in the province of East Nusa Tenggara. This region, characterized by its archipelagic dryland geography, has reported the highest prevalence of stunting among children under five from 2007 to 2021. The study aimed to examine the relationship between various characteristics of children under five and household factors with the occurrence of stunting. This observational study, with a cross-sectional design, used secondary data from the 2021 Indonesian Nutrition Status Survey, covering 7,835 children under five. We analyzed the data to identify patterns and relationships, using univariate analysis to display percentage distributions and bivariate analysis through multiple binary logistic regression tests. The results of the multiple logistic regression test showed that indicators of family characteristics such as age, gender, low birth weight, body length, possession of birth certificates, and receiving complementary feeding were all related to stunting. Additionally, household factors such as toilet type, National Health Insurance coverage, ownership of a Prosperous Family Card, and residential area were significant determinants. Factors contributing to stunting in dryland areas include a range of elements from both family characteristics-such as age, gender, birth certification, low birth weight, and initial body length, to the introduction of supplementary feeding-and household indicators, including the use of specific types of latrines (Plengsengan and Cemplung types without covers), health insurance coverage, possession of Prosperous Family Cards, and the family's residential area.

A cluster randomized controlled trial of a community-based initiative to reduce stunting in rural Indonesia

We evaluate the impacts of a $120 million project in Indonesia conducted between 2014 and 2018 that sought to reduce stunting through a combination of (1) community-driven development grants targeted at health and education outcomes, (2) training for health providers on infant and young child feeding and growth monitoring and (3) training for sanitarians on a local variation of community-led total sanitation. This cluster randomized controlled trial involved 95 treatment and 95 control subdistricts across South Sumatra, West Kalimantan, and Central Kalimantan provinces. Overall, we find no significant impacts on stunting, the study's primary outcome measure (0.5 pp; 95% confidence interval [CI]: -3.0 to 4.1 percentage points [pp]), or other longer-term undernutrition outcomes about 1 year after the end of the project. The project had a modest impact on some secondary, more proximal outcomes related to maternal and child nutrition, including the percentage of mothers consuming the recommended number of iron-folic acid pills during pregnancy (8.7 pp; 95% CI: 4.1-13.3 pp), 0-5-month-olds being exclusively breastfed (8.7 pp; 95% CI: 1.8-15.6 pp) and 6-23-month-olds receiving the number of recommended meals per day (8.5 pp; 95% CI: 3.8-13.2 pp). However, there were no significant impacts on other proximal outcomes like the number of pre-natal and post-natal checkups, child dietary diversity, child vitamin A receipt or the incidence of child diarrhoea. Our findings highlight that successfully implementing an integrated package of interventions to reduce child stunting may be challenging in practice. Project design needs to consider implementation reality along with best practice-for example, by piloting the synchronous implementation of multifaceted interventions or phasing them in more gradually over a longer timeframe.

Evaluating preschool linear growth velocities: an interim reference illustrated in Nepal

OBJECTIVE

An annualised linear growth velocity (LGV) reference can identify groups of children at risk of growing poorly. As a single velocity reference for all preschool ages does not exist, we present an interim tool, derived from published, normative growth studies, for detecting growth faltering, illustrating its use in Nepali preschoolers.

DESIGN

The WHO Child Growth Velocity Standard was adapted to derive 12-month increments and conjoined to the Tanner-Whitehouse Height Velocity Reference data yielding contiguous preschool linear growth annualised velocities. Linear restricted cubic spline regressions were fit to generate sex-specific median and standard normal deviate velocities for ages 0 through 59 months. LGV Z-scores (LGVZ) were constructed, and growth faltering was defined as LGVZ < –2.

SETTING

Use of the reference was illustrated with data from Nepal’s Tarai region.

PARTICIPANTS

Children contributing the existing growth references and a cohort of 4276 Nepali children assessed from 2013 to 2016.

RESULTS

Fitted, smoothed LGV reference curves displayed monotonically decreasing 12-month LGV, exemplified by male/female annual medians of 26·4/25·3, 12·1/12·7, 9·1/9·4, 7·7/7·8 and 7/7 cm/years, starting at 0, 12, 24, 36 and 48 months, respectively. Applying the referent, 31·1 %, 28·6 % and 29·3 % of Nepali children <6, 6–11 and 12–23 months of age, and ∼6 % of children 24–59 months, exhibited growth faltering. Under 24 months, faltering velocities were more prevalent in girls (34·4 %) than boys (25·3 %) (P < 0·05) but comparable (∼6 %) in older preschoolers.

CONCLUSIONS

A LGV reference, concatenated from extant data, can identify preschool groups at-risk of growth faltering. Application and limitations are discussed.

Breastfeeding moderates childhood obesity risk associated with prenatal exposure to excessive gestational weight gain

Gaining excessive gestational weight may increase obesity risk in the offspring, while breastfeeding lowers that risk. Using data from the Special Supplemental Nutrition Programme for Women, Infants and Children (WIC) in Southern California, we examined the associations between gestational weight gain (GWG), breastfeeding during infancy and childhood obesity at 2-4 years, and determined whether breastfeeding moderated the association between GWG and childhood obesity. GWG was based on weight measurements collected during the first trimester and within a month before delivery. GWG values were standardized by gestational age (GWG z-scores), per maternal prepregnancy body mass index (BMI) and categorized into tertiles. Fully breastfeeding duration was determined by WIC infant package data indicating the amount of infant formula received monthly. Children's length (or height) and weight measurements were used to calculate BMI-for-age z-scores and identify obesity (z-score ≥ 95th percentile). Multivariable linear and modified Poisson regression analyses were conducted. Fully breastfeeding moderated the association between GWG z-scores tertile and obesity in the offspring. Each additional month of fully breastfeeding was associated with 3%-5% obesity risk reduction for each age group and GWG z-scores tertile, except at age 4 years for children whose mothers had low GWG z-scores (tertile 1). Shorter fully breastfeeding duration was associated with greater obesity risk among children of mothers with high GWG z-scores (tertile 3), but not for those whose mothers had low GWG z-scores. Longer fully breastfeeding duration may provide greater protection against obesity among children at higher risk due to intrauterine exposure to high gestational weight gain.

Dietary Patterns of Children from the Amazon Region of Ecuador: A Descriptive, Qualitative Investigation

Many young children in Ecuador suffer from high rates of malnutrition and stunting that affect their long-term growth and development. Little is known about the dietary patterns of children from the Amazon region who experience some of the highest rates of stunting (height-for-age) within Ecuador. Semi-structured interviews were conducted with 50 mothers of young children living in the Ecuadorian Amazon. In addition to descriptions of overall dietary patterns, three themes emerged from the interviews relating to strengths mothers have in feeding their children healthy diets: knowledge, autonomous and independent children, and supportive and responsive parenting. Five themes were found relating to barriers mothers have in feeding their children healthy diets. The first four themes concerned barriers (lack of knowledge of healthy foods, lack of access to healthy foods, not enough money, and child's health) related to multidimensional poverty. All these influenced the last theme found, namely, how difficult of an eater the child was. The implications of intervention efforts to reduce undernutrition and promote children's development by building on specific family and community strengths and identified barriers are also discussed in this paper.

Development and evaluation of nursing intervention in preventing stunting in children of adolescent mothers: A mixed-methods research protocol

Background: Adolescent pregnancies are a global problem occurring in many countries. Adolescent pregnancy is a risk factor for stunting in children. Aim: This study was designed to develop and evaluation of nursing interventions to prevent stunting in children of adolescent mothers. Methods: A mixed-methods explanatory sequential design with two phases approach will be applied. Phase I is a qualitative phenomenology descriptive study that will be used. Participants will be adolescent pregnant women from several community health centers (Puskesmas) and healthcare staff in a community public center (Puskesmas) will be selected by purposive sampling. The study will be conducted at community health centers (Puskesmas) in Makassar, South Sulawesi, Indonesia. Data will be gathered through in-depth interviews and focus group discussions and analyzed using thematic analysis. Subsequently, an experimental pre-post-test design with a control group will be used to measure the effectiveness of the nursing intervention on preventing stunting among adolescent mothers in the quantitative phase by behavior toward stunting prevention for adolescent pregnancy and the nutritional status of children. Conclusion: This study will provide insight from both adolescent mothers' and healthcare staff's perspectives on stunting prevention including nutrition of adolescent pregnancy and breastfeeding. We will evaluate the effectiveness and acceptability of nursing intervention in preventing stunting. This will contribute to the international literature on the use of healthcare staff at community health services (puskesmas) to achieve linear growth due to prolonged food insecurity and illnesses in childhood.

Maternal dietary pattern and its association with birthweight in Northern Ethiopia: A hospital-based cross-sectional study

Birthweight is a useful public health measure of maternal health, nutrition, healthcare delivery, and child morbidity and mortality. Previous research did not focus on dietary patterns but rather on a single or a few foods or nutrients. This study aimed to assess the maternal dietary pattern and its association with birthweight in northern Ethiopia. A hospital-based cross-sectional study was conducted among 373 pregnant mothers in their third trimester of pregnancy who came to attend their routine antenatal care service. The food frequency questionnaire was collected from the previous week, and the birthweight data were collected from the medical records after delivery. Three maternal dietary patterns were identified; dietary pattern includes eggs, milk, milk products, and certain fruits and roots. Dietary pattern 2 includes certain vegetables, green leafy vegetables, vitamin A-rich vegetables, pulses such as beans, peas, and chickpeas, and drinks like coffee, tea, and soda. Dietary pattern 3 includes meat, nuts, and grains such as teff, corn, wheat, and white flour. Dietary pattern 1 (β = 52.45, p = .03) and dietary pattern 2 (β = 66.76, p = .01), residency (β = 287.08, p < .001), a mid-upper-arm circumference of 21-23 cm (β = 187.10, p = .02), a mid-upper-arm circumference of >23 cm (β = 272, p = .01), and gestational age at delivery (β = 12.58, p = .004) were the factors significantly associated with increased birthweight. The maternal dietary pattern has a significant association with birthweight. The focus should be given to maternal dietary patterns to prevent suboptimal and high birthweight.

Insulin-like Growth Factor 1 (IGF1), IGF Binding Protein-3 (IGFBP3) and Growth Response to Daily Zinc Supplementation: A Randomized Trial in Rural Laotian Children

OBJECTIVES

To assess (a) the impact of daily preventive zinc tablets (7 mg; PZ), zinc-containing multiple micronutrient powder (10 mg zinc, and 13 other micronutrients; MNP) or placebo, delivered for 9 months, on Insulin-like Growth Factor 1 (IGF1) and IGF Binding Protein 3 (IGFBP3) among Laotian children 6-23 months, and (b) whether the effects of PZ and MNP on length-for-age z-scores (LAZ) and weight-for-age z-scores (WAZ) are modified by baseline IGF1 and IGFBP3.

DESIGN

A double-blind, placebo-controlled trial (N = 419).

METHODS

Plasma IGF1 and IGFBP3 concentrations at baseline and 36 weeks were analyzed by automated chemiluminescent assay. Anthropometry was assessed at baseline, at 18 and 36 weeks. Intervention effects were estimated using ANCOVA.

RESULTS

At 36 weeks, geometric mean IGF1 (~39.0-39.2 ng/mL; p = 0.99) and IGFBP3 (2038-2076 ng/mL; p = 0.83) did not differ by group. At 18 weeks (but not at 36 weeks), LAZ in the PZ group (-1.45) was higher than the MNP (-1.70) and control (-1.55) groups (p = 0.01) among children in the highest baseline IGF1 tertile (p for interaction = 0.006). At 36 weeks (but not at 18 weeks), WAZ in the PZ group (-1.55) was significantly higher than the MNP (-1.75) and control (-1.65) groups (p = 0.03), among children in the lowest baseline IGFBP3 tertile (p for interactions = 0.06).

CONCLUSIONS

Although IGF1 and IGFBP3 did not respond to PZ and MNP, baseline IGF1 and IGFBP3 significantly modified the impact of PZ on linear and ponderal growth, suggesting that IGF1 bioavailability may drive catch-up growth in zinc-supplemented children.

Maternal Dietary Diversity and Birth Weight in Offspring: Evidence from a Chinese Population-Based Study

Studies on the association between maternal dietary diversity and birth weight in offspring are limited, and the impact of such an adjustable factor on birth weight requires investigation to promote neonatal health. This study used data from a larger-scale population-based survey conducted in northwest China to evaluate the association of maternal dietary diversity with neonatal birth weight with a generalized estimating equation model. The results found that maternal dietary diversity was positively associated with neonate birth weight. Furthermore, a higher minimum dietary diversity for women (MDD-W) score during pregnancy was related to a lower risk of low birth weight (LBW) in offspring. The mothers with the highest MDD-W score had a 38% (OR = 0.62, 95% CI: 0.43-0.89) lower risk of LBW than those with the lowest score. Similarly, the mothers with the highest animal-based food dietary diversity score (DDS) had 39% (OR = 0.61, 95% CI: 0.38-0.98) lower risk of LBW in offspring compared with those with the lowest animal-based food DDS. Moreover, the ratio of animal-based food DDS to non-animal-based food DDS could play an important role in predicting neonate birth weight. In conclusion, increasing maternal dietary diversity would improve birth weight in offspring, especially by increasing the intake of animal-based foods among the Chinese population.

Association of BCC Module Roll-Out in SHG meetings with changes in complementary feeding and dietary diversity among children (6-23 months)? Evidence from JEEViKA in Rural Bihar, India

OBJECTIVES

Child dietary diversity is very low across rural communities in Bihar. Based on the experience of behavior change communication (BCC) module roll out in self-help group (SHG) sessions in rural Bihar, this study aims to assess the impact of the intervention on child dietary diversity levels in the beneficiary groups.

METHODS

The study is based on a pre-post study design whereby child dietary diversity is examined for a sample of 300 children (6-23 months old from 60 village organizations) during both pre-intervention as well as post-intervention phase. The latter consists of two types of group viz. a) children whose mothers were directly exposed to BCC module in SHGs sessions and b) those who were non-participants but may have indirect exposure through spillovers of BCC activities. Econometric analysis including logistic regression as well as propensity score matching techniques are applied for estimating the changes in dietary diversity in the post-intervention phase.

RESULTS

During the pre-intervention phase, 19% of the children (6-23 months) had adequate dietary diversity (eating from at least 4 out of 7 different food groups) and this increased to 49% among the exposed group and to 28% among the non-exposed group in the post-intervention phase. The exposed group have an odds ratio of 3.81 (95% CI: 2.03, 7.15) for consuming diverse diet when compared to the pre-intervention group. The propensity score matching analysis finds a 33% average treatment effect on the treated (ATT) for the group participating in BCC sessions at SHG events.

CONCLUSION

BCC roll out among SHG members is an effective mode to increase dietary diversity among infants and young children. The impact on child dietary diversity was significantly higher among mothers directly exposed to BCC modules. The BCC module also improved knowledge and awareness levels on complementary feeding and child dietary diversity.

Wealth- and education-related inequalities in minimum dietary diversity among Indonesian infants and young children: a decomposition analysis

Background

Over the last two decades, Indonesia has experienced remarkable economic growth. However, the percentage of infants and young children meeting the minimum dietary diversity (MDD) criteria has stagnated. Despite the growing body of evidence of the association between MDD and socioeconomic factors, there is little information about socioeconomic inequalities in MDD in Indonesia.

Objectives

The current study seeks to quantify the wealth- and education-related inequalities in MDD among infants and young children in Indonesia and determine the contribution of different factors to these disparities.

Methods

We included a total of 5038 children aged 6–23 months of the 2017 Indonesia Demographic and Health Survey. We measured wealth- and education-related inequalities using the concentration curve and Wagstaff normalised concentration index. Using a concentration index decomposition analysis, we then examined factors contributing to wealth- and education-related inequalities in MDD.

Results

The concentration indices by household wealth and maternal education were 0.220 (p < 0.001) and 0.192 (p < 0.001), respectively, indicating more concentration of inequalities among the advantaged population. The decomposition analysis revealed that household wealth (29.8%), antenatal care (ANC) visits (16.6%), paternal occupation (15.1%), and maternal education (11.8%) explained the pro-rich inequalities in MDD in Indonesia. Maternal education (26.1%), household wealth (19.1%), ANC visits (14.9%), and paternal occupation (10.9%) made the most considerable contribution to education-related inequalities in MDD.

Conclusions

There is substantial wealth- and education-related inequalities in MDD. Our findings suggest an urgent need to address the underlying causes of not reaching dietary diversity by promoting infant and young child feeding equity in Indonesia.

Promoting weaning practices and growth of Egyptian infants by using communication for behavioral development approach

Background

Access to various affordable and nutritious foods is considered a challenging factor for households with limited resources affecting the proper weaning practices. In order to motivate communities to adhere to the right and proper weaning practices, the social aspect should be considered through close communication with the targeted communities. This study aimed to evaluate how impactful the use of the principles of Communication for Development (C4D) that respect parents’ beliefs and their cultural norms is in improving the weaning practices and growth of infants in an Egyptian village.

Methods

An interventional three-phase study was conducted for three years. The intervention targeted 464 mothers of infants up to 2 years of age. C4D interventions encouraged each mother to provide her baby with nutritious and varied options through age-appropriate introduction and diversification of nutrient-rich complementary foods under the slogan “ enjoy meals like a baby”. The effectiveness of the approach was measured by five essential weaning practices: Introduction of solid, semi-solid, or soft foods, Minimum dietary diversity, minimum meal frequency, Minimum acceptable diet, and consumption of iron-rich foods.

Results

There was marked and significant improvement in the awareness and of the majority of the weaning practices’ indicators as a result of the interventions. This was noticed for the timely introduction of complementary foods which increased from 36.7% to 82.0%, the minimum meal frequency indicator (3–5) which increased from 25.3% to 67.3%, iron-rich or fortified food (68.0% to 82%) as well as a regular checkup for baby health at the health unit (71.3%). Indicators that were improved but failed to achieve the target were the “Minimum Dietary Diversity” (reached 32%) and the minimum acceptable diet (reached 22.0%). A significant effect on linear growth especially for females is evidenced by the remarkable decrease in wasting (from 31.5% to 11.1%) and obesity (from 12.0% to 0%) associated with a considerable decrease in underweight (from 40% to 16.7%).

Conclusion

Targeting caregivers through the C4D approach have succeeded in providing them with the support required for the provision of adequate nutrition for their infants that had significantly marked improvement in growth indices of their infants.

Promoting weaning practices and growth of Egyptian infants by using communication for behavioral development approach

BACKGROUND

Access to various affordable and nutritious foods is considered a challenging factor for households with limited resources affecting the proper weaning practices. In order to motivate communities to adhere to the right and proper weaning practices, the social aspect should be considered through close communication with the targeted communities. This study aimed to evaluate how impactful the use of the principles of Communication for Development (C4D) that respect parents' beliefs and their cultural norms is in improving the weaning practices and growth of infants in an Egyptian village.

METHODS

An interventional three-phase study was conducted for three years. The intervention targeted 464 mothers of infants up to 2 years of age. C4D interventions encouraged each mother to provide her baby with nutritious and varied options through age-appropriate introduction and diversification of nutrient-rich complementary foods under the slogan " enjoy meals like a baby". The effectiveness of the approach was measured by five essential weaning practices: Introduction of solid, semi-solid, or soft foods, Minimum dietary diversity, minimum meal frequency, Minimum acceptable diet, and consumption of iron-rich foods.

RESULTS

There was marked and significant improvement in the awareness and of the majority of the weaning practices' indicators as a result of the interventions. This was noticed for the timely introduction of complementary foods which increased from 36.7% to 82.0%, the minimum meal frequency indicator (3-5) which increased from 25.3% to 67.3%, iron-rich or fortified food (68.0% to 82%) as well as a regular checkup for baby health at the health unit (71.3%). Indicators that were improved but failed to achieve the target were the "Minimum Dietary Diversity" (reached 32%) and the minimum acceptable diet (reached 22.0%). A significant effect on linear growth especially for females is evidenced by the remarkable decrease in wasting (from 31.5% to 11.1%) and obesity (from 12.0% to 0%) associated with a considerable decrease in underweight (from 40% to 16.7%).

CONCLUSION

Targeting caregivers through the C4D approach have succeeded in providing them with the support required for the provision of adequate nutrition for their infants that had significantly marked improvement in growth indices of their infants.

A Randomized Pilot Trial of Micronutrient Supplementation for Under-5 Children in an Urban Low-Cost Flat Community in Malaysia: A Framework for Community-Based Research Integration

Early childhood nutritional deficiency has detrimental consequences on physical and cognitive development. We conducted a single-center, single-blind, two-arm pilot randomized no-treatment controlled trial (the Child of Urban Poverty Iron Project (CUPIP); NCT03819530) in a people’s housing project locale in Selangor, Malaysia, between September 2019 and February 2020, to assess the trial’s general feasibility and preliminary benefits of daily micronutrient supplementation for iron storage and anthropometric outcomes in under-5 children. Those with history of premature births, congenital abnormalities, or baseline hemoglobin <70 g/L were excluded. Participants received baseline deworming and were simply randomized in a 1:1 ratio to either micronutrient (4-month daily micronutrient packets) or control (no micronutrient supplementation) groups. Information on anthropometric, erythrocytic, and iron storage endpoints were collected. Overall, 45 (25 micronutrient and 20 controls) participants were enrolled and completed 4-month endpoint assessments. Micronutrient recipients demonstrated higher median mean corpuscular volume, serum ferritin level with no significant differences in all anthropometric endpoints. In conclusion, this pilot trial was implementable, demonstrating that micronutrient supplementation significantly improved hematological, but not anthropometric, endpoints, of under-5-year-old children living in an underprivileged environment. A definitive well-designed trial with larger sample sizes and greater attrition control should be contemplated in the future.

High response rate and low cost of WeChat-based data collection of infant and young child feeding data in rural Qinghai Province, China

Background

Measuring the infant and young child feeding (IYCF) indicators is key to effectively tracking the progress of child health programs and making evidence-based decisions. WeChat is the most popular mobile social media platform in China and has become a promising tool for collecting health data. This study aims to explore the response rate and costs of a WeChat-based questionnaire on IYCF information in rural China.

Methods

We conducted two cross-sectional surveys with caregivers of children aged 6-23 months in two rural counties in Qinghai Province (Menyuan and Datong County), China, from January to March 2022. Both surveys used the same WeChat IYCF questionnaire to collect household information, infant feeding practices, and caregivers’ feeding knowledge. Village doctors sent a quick response (QR) code to caregivers that was linked to the WeChat IYCF questionnaire. Participating caregivers scanned the QR code using their own WeChat account on their smartphone and filled in the questionnaire online. If they could not use WeChat themselves, village doctors administered the questionnaire. Once caregivers finished the questionnaires, they received a personalized report with infant feeding recommendations.

Results

We recruited 1274 caregivers of children aged 6-23 months in Menyuan County and 1748 caregivers in Datong County. The total response rate in the two counties was 98.2%; 77.6% of questionnaires were self-administered by caregivers and 20.6% were interviewer-administered by village doctors. The questionnaires were filled in twice by 209 (6.9%) caregivers. The cost of these two WeChat IYCF surveys was much lower than the cost of a previously conducted face-to-face survey: 11.8 yuan (US$1.85) in Menyuan County and 7.5 yuan (US$1.18) in Datong County for the WeChat survey vs 112.7 yuan (US$17.70) for the face-to-face survey in Huzhu County.

Conclusions

This study showed that using WeChat for IYCF surveys can achieve a very high response rate at a low cost in rural China. Village doctors played a very important role in achieving this high response rate. Providing feedback to caregivers may improve their feeding practices and this intervention could be incorporated into the data collection process.

Effects of Nutrition Counselling and Unconditional Cash Transfer on Child Growth and Family Food Security in Internally Displaced Person Camps in Somalia-A Quasi-Experimental Study

The effects of nutrition counselling (NC) and unconditional cash transfer (UCT) in improving growth in children under five and household food security are poorly understood in humanitarian settings. Therefore, this study aimed to evaluate the effects of NC and NC combined with unconditional cash transfer (NC + UCT) on children's growth and food security in Somalia. The study was performed with a quasi-experimental design in two districts in the Banadir region of Somalia. Caregivers (n = 255) with mildly to moderately malnourished children aged 6 to 59 months old (n = 184) were randomized to the NC, NC + UCT and control groups. The interventions consisted of weekly NC for three months alone or in combination with UCT. The outcome variables were wasting, underweight, stunting, and food security. Difference-indifferences analysis was used to estimate the effect of the interventions. Our study did not find any significant impacts of NC or NC + UCT on child wasting, underweight, stunting, food security or household expenses. In conclusion, NC, alone or in combination with UCT, did not impact children's growth or household food security. Thus, a culturally tailored NC programme over a longer period, supplemented with cash transfer, could be beneficial to consider when designing interventions to reduce malnutrition and food insecurity.

Effectiveness of nutritional supplementation during the first 1000-days of life to reduce child undernutrition: A cluster randomized controlled trial in Pakistan

Background

Childhood stunting can start in the womb and continue for two years. Therefore, the first 1000 days of life between a woman's pregnancy and her child's 2nd birthday offer a unique window of opportunity to build healthier and more prosperous futures. Therefore, we aimed to assess the effectiveness of nutritional supplementation during the first 1000-days to reduce the prevalence of stunting in children at 24 months of age.

Methods

In this cluster randomized controlled trial, we enrolled women during their pregnancy from two rural districts of Sindh, Pakistan. A cluster was one union council with a population of ∼25000 residents. Out of 29 clusters, we randomly allocated 6 clusters to the intervention and control groups each. Pregnant women received a monthly supply of 5 kg (i.e., 165 grams/day) of wheat soya blend plus (WSB+) during pregnancy and the first six months of their lactation period. In addition, their children received lipid-based nutrient supplement - medium-quantity (LNS-MQ) between 6-23 months of age. The primary outcome was a reduction in the prevalence of stunting in children at 24 months of age. Analysis was an intention to treat. The trial is registered on ClinicalTrial.gov, number NCT02422953.

Findings

Two thousand thirty pregnant women (1017 in the intervention group and 1013 in the control group) were enrolled between August 30, 2014, and May 25, 2016. Monthly follow-ups were conducted between October 1, 2014, and October 25, 2018. At 24 months of age, we captured data from 699 (78%) of 892 live births in the intervention group and 653 (76%) of 853 live births in the control group. There was a significant difference in mean length (49.4 cm vs 48.9 cm, p =0.027), weight (3.1 kg vs 3.0 kg, p =0.013), length for age z-scores (-1.2 vs -1.5, p =0.004) and weight for age z-scores (-1.2 vs -1.5, p =0.015) among infants in the intervention compared to control group. At 24 months of age, a significant difference in the prevalence of stunting (absolute difference, 10.2%, 95% CI 18.2 to 2.3, p =0.017) and underweight (absolute difference, 13.7%, 95% CI 20.3 to 7.0, p =0.001) were observed in the intervention as compared to the control group. The prevalence of wasting was not significantly different between the intervention and control groups (absolute difference, 6.9%, 95% CI 14.1 to 0.3, p =0.057).

Interpretation

Provision of WSB+ and LNS-MQ during the first 1000-days of life improved child linear growth and reduced stunting in children at 24 months. This study can be scaled-up in similar settings to lower the prevalence of stunting in children under two years of age.

Funding

World Food Programme, Pakistan.

Differential Effects of Three Nutritional Supplements on the Nutrient Intake of Pregnant Women Enrolled in a Conditional Cash Transfer Program in Mexico: A Cluster Randomized Trial

Supplementation in malnourished pregnant women should not displace natural healthy foods. Objective: To estimate the differential effects of three nutritional supplements on macro- and micronutrient intake of pregnant women beneficiaries of the conditional cash transfer program Prospera (CCT-POP). Methods: Prospective cluster randomized trial. Communities were randomly assigned to receive a fortified beverage (Beverage), micronutrient tablets (Tablets), or micronutrient powder (MNP). Pregnant women (at <25 weeks) were recruited. The food frequency questionnaire was applied at 25 and 37 weeks of pregnancy and at one and three months postpartum (mpp). Differential effects of the three supplements on the median change in nutrient intake from baseline to each follow-up stage were estimated. Results: Median change in protein intake from dietary and supplement sources were significantly lower for MNP and Tablets than for Beverages (baseline to 37 w: −7.80 ± 2.90 and −11.54 ± 3.00, respectively; baseline to 1 mpp: −7.34 ± 2.90 for MNP, p < 0.001). Compared to Beverages, median increases were higher for the MNP for vitamins C (31.2 ± 11.7, p < 0.01), E (1.67 ± 0.81, p < 0.05), and B12 (0.83 ± 0.27, p < 0.01) from baseline to 37 wk; from baseline to 1 mpp, there was a higher median increase in B12 (0.55 ± 0.25, p < 0.05) and folate (63.4 ± 24.3, p < 0.01); and from baseline to 3 mpp, a higher median increase in iron (2.38 ± 1.06, p < 0.05) and folate (94.4 ± 38.1, p < 0.05). Conclusions: Intake of micronutrients was higher for MNP and Tablets, likely due to food displacement among Beverage consumers. Although iron bioavailability and absorption inhibitors were not considered for the present analyses, the distribution of Tablets or MNP had several advantages in this context where micronutrient deficiency remains high among pregnant women, but macronutrient intake is generally adequate or even high.

Complementary Feeding Practices among Young Children in China, India, and Indonesia: A Narrative Review

Under- and overnutrition are co-existing health issues in several countries across Asia. Poor complementary feeding (CF) is a significant determinant of malnutrition in children and a major cause of morbidity and mortality. The purpose of this narrative review is to summarize the most recent evidence regarding the CF practices in 3 countries with a high prevalence of stunting and overweight, and currently undergoing rapid economic and nutritional transition: China, India, and Indonesia. We focused particularly on the adequacy of CF, based on the WHO feeding indicators (2021) regarding timing, frequency, diversity, as well as the consumption of specific food groups. According to the findings, the majority of infants in the 3 countries are introduced to CF at an inappropriate time: either too early (particularly in urban/rural areas of China and Indonesia) or too late (India) compared with the WHO recommendation. Furthermore, in all countries, diets are characterized by a low variety and frequency of CF and consist mainly of staple foods with poor nutritional quality, such as rice, cereals, or noodles. Nutrient-dense and protein-rich foods, such as foods of animal origin, are either inadequately consumed (rural areas of China and India) or introduced too late (urban areas of China and Indonesia) in the diets of children. In all countries, the consumption of fruit and vegetables, especially during the early CF period, is poor. In contrast, a significant proportion of both urban and rural children, particularly in Indonesia and India, are consuming energy-dense/nutrient-poor snacks and sugary drinks during the CF period. The described practices may pose a significant risk for the development of energy and/or nutrient gaps, magnifying the double and triple burden of malnutrition present in these countries. Further research is warranted to understand the significance of the observed practices for stunting and/or overweight/obesity risk.

Does birth season correlate with childhood stunting? An input for astrological nutrition

INTRODUCTION

Chronic malnutrition is highly prevalent in Sub-Saharan Africa and a severe public health problem in Ethiopia.At country level in the past three decades,the prevalence of stunting is above 40%.Different researchs and intervention were implemented in the past;but the progresss is non-remarkable.Despite; the effect of birth season on childhood chronic malnutrition was not studied yet in Ethiopia.

METHODS

This research was extracted from the 2016 demographic health survey of Ethiopia. The data was collected based on national and international scientific protocols. A total of 645 enumeration areas were selected for the national survey.The surevey uses two stage stratified sampling technique to gather data from the sampling unit. After excluding non eligible children a total of 8855 participants were included for final analysis.Height and weight were measured based on the standards nutritional assessment procedure.SPSS version 20 was used to analyze the data.Descriptive statistics were used to present the data. Binary and multivariable logistic regression models were regressed to identify the potential predictors.A p-value of less than 0.05 with 95% CI were used to declare an association.

RESULT

The prevalence of stunting in Ethiopia was 38.7% (95% CI: 36.8, 40.6). Season of birth had a significant association with stunting. The odds of being stunted among children born in the spring season were decreased by 16% as compared to children born in the winter season.

CONCLUSION

Children born in the spring season were less likely to be stunted (the so called October effect). The clear scientific relation between the season of birth and child anthropometric indicator is not well understood. Nutritional interventions and policies are better to consider the birth season of the child.

Gut microbiome development and childhood undernutrition

Forty-five percent of deaths among children under 5 years of age are associated with undernutrition. Globally, almost 200 million children exhibit the two major forms of undernutrition-wasting (low weight-for-height) or stunting (low height-for-age), with many affected by both. Undernutrition is not due to food insecurity alone. Growing evidence indicates that perturbed postnatal gut microbiome development contributes to its pathogenesis. This perspective focuses on defining and repairing these defects in gut microbiome development. We describe an approach that involves the analysis of well-phenotyped human cohorts, followed by preclinical studies using gnotobiotic animals colonized with microbiota from these cohorts. Additionally, these models can be used to identify therapeutic targets and candidates that can then be tested clinically. Furthermore, introducing pretreatment microbiota from trial participants into gnotobiotic animals and re-enacting trial conditions allow mechanisms to be dissected. We highlight these recent advances as well as gaps in existing knowledge that present opportunities for future research.

Complementary feeding in South Asia: a multi-system analysis of the enabling environment and programme context

Aim

The links between poor complementary feeding and child malnutrition in South Asia argue for greater attention to improving young children’s diets. This study examined the status of policy and programme actions to support complementary feeding across four systems in South Asia: food, health, social protection, and water, sanitation, and hygiene (WASH).

Methods

We conducted a review to assess the status of national policy and programme actions to improve complementary feeding in children aged 6–23 months in eight South Asian countries across four systems, including the comprehensiveness of the enabling environment and the geographic scale of programmes.

Results

All countries have policy and programme commitments to improving complementary feeding; however, no country has a comprehensive set of legislation, policies, strategies, and plans that fully incorporate relevant global recommendations and guidance. The health system has the strongest enabling environment for complementary feeding, but the lack of supportive legislation, policies, strategies, and plans in other systems may hinder multisystem action. There are few examples of nationwide programmes to improve complementary feeding beyond the health system.

Conclusion

Governments should mobilize their institutions and resources to enable a coherent and multisystem response to complementary feeding that addresses the gaps in legislation, policies, and programmes and the barriers and bottlenecks to implementation at scale, with a focus on the food, health, social protection, and WASH systems. Further operational research is needed on the factors and processes that enable multisystem action to secure nutritious, safe, affordable, and sustainable diets for young children in South Asia.

Child growth and neurodevelopment after maternal antenatal antibiotic treatment

OBJECTIVE

To assess whether intermittent preventive treatment of pregnant women (IPTp) with sulfadoxine-pyrimethamine (SP) and azithromycin (AZI) in a malaria-endemic area leads to sustained gains in linear growth and development in their offspring.

DESIGN

Follow-up study of a randomised trial.

SETTING

Mangochi District in rural southern Malawi.

PARTICIPANTS

1320 pregnant women and their offspring.

INTERVENTIONS

IPTp monthly with SP and twice with AZI (AZI-SP group), monthly with SP but no AZI (monthly SP), or twice with SP (control). No intervention was given to children.

MAIN OUTCOME MEASURES

Cognitive performance using Raven's Coloured Progressive Matrices (CPM) at 13 years of age; mean height and height-for-age Z-score (HAZ), cumulative incidence and prevalence of stunting (HAZ <-2); weight, body mass index, mid-upper-arm circumference and head circumference.

RESULTS

At approximately 13 years of age, the mean CPM score was 14.3 (SD 3.8, range 6-29, maximum 36), with no differences between groups. Children in the AZI-SP group were on average 0.4 cm (95% CI -0.9 to 1.7, p=0.6) taller than those in the control group. For cumulative incidence of stunting, the HR in the AZI-SP group was 0.72 (95% CI 0.61 to 0.84, p<0.001) compared with the control and 0.76 (95% CI 0.65 to 0.90, p<0.001) compared with the monthly SP groups. There was no intergroup difference in stunting prevalence or anthropometric measurements.

CONCLUSIONS

In rural Malawi, maternal intensified infection control during pregnancy reduces offspring's cumulative incidence of ever being stunted by 13 years of age. In this study, there was no evidence of a positive impact on cognitive performance.

TRIAL REGISTRATION NUMBER

NCT00131235.

Stunting Prevention in Coastal Family with Health-Promoting Family Approach

BACKGROUND: Stunting is a chronic nutritional problem that occurs worldwide, including in Indonesia. The impact of the COVID-19 pandemic has increasingly caused stunting to increase in coastal areas in particular. AIM: This study aimed to obtain a stunting prevention model with a Health-Promoting Family model approach in coastal families. METHODS: This study was quantitative research. The population in this study was mothers of toddlers aged 6–48 months in the coastal areas of Pamekasan. The sample in this study was mothers of 135 toddlers in Tlanakan and Talang villages who were selected using a simple random sampling technique. The independent variables are the history of present illness, mother’s knowledge, care patterns, literacy, cultural aspects, and family support—while the dependent variable is family prevention behavior regarding the incidence of stunting. Data collection was carried out by interview method using a questionnaire. Statistical analysis was carried out using the Logistic Regression test (=0.05) RESULTS: The factors that affect stunting prevention are knowledge p = 0.008 (CI: 1.438–11.780), literacy p = 0.000 (CI: 2.136–17.003), cultural aspects p = 0.00 (CI: 0.039–0.366) and family support p = 0.000 (CI: 1.273–20.498). CONCLUSION: Knowledge, family support, literacy, and culture affect stunting prevention in families. It takes the collaboration of the community, the government participation in strengthening maternal and child health programs that support the achievement of stunting prevention in families. There are opportunities to research what appropriate forms of literacy in families support the success of stunting prevention in toddlers for further studies.

The influence of fasting on energy and nutrient intake and their corresponding food sources among 6-23 months old children in rural communities with high burden of stunting from Northern Ethiopia

BACKGROUND

Limited studies in Ethiopia showed that infants and young children are at high risk of inadequate intake of energy and nutrients. However, inclusive assessment of both nutrient intakes and their food sources are lacking. We aimed at assessing energy and nutrient intakes and their food sources during religious fasting and non-fasting periods among 6-23 months old children in Northern Ethiopia.

METHODS

Data for this longitudinal study were collected following repeated multiple-pass 24-h dietary recall technique through face-to-face interviews with primary caregivers. Using a two-stage systematic random sampling method, a total of 570 and 551 children participated respectively in the lent fasting and non-fasting periods. Energy and nutrient intakes were estimated and compared with WHO daily requirements. All foods that a child consumed on the day preceding the date of data collection were recorded and processed with database software. Chi-square and t- tests were used to analyze the data. Non-normally distributed data were analyzed using Wilcoxon signed-rank test and statistical significance was set at p < 0.05.

RESULTS

The overall prevalence of child stunting was 41.4%. Almost all of children (99.6%) consumed grains, roots, and tubers. The inadequacy prevalence of energy, protein and eight selected micronutrients (calcium, iron, zinc, vitamin A, thiamin, riboflavin, niacin, vitamin C) intake were 96.2, 44.9, and 95.5%, respectively. Calcium and zinc were the highest (100%) deficits observed across all age groups. Although consumption of animal source foods (ASFs) was very low (dairy 10.1%, meat 2.3% and eggs 23.6%), there was significantly higher consumption of meat and eggs during the non-fasting compared to fasting period (p < 0.001).

CONCLUSIONS

Inadequate intake of energy and nutrients was common among 6-23 months old children. Cereals were found to be the main sources of many of the nutrients. The consumption of ASFs among 6-23-month-old children was low which was also affected by the religious fasting period. Hence, strengthening social and behavior change communication, supporting rural households to raise poultry and small ruminants is recommended.

Reducing Stunting Prevalence: Causes, Impacts, and Strategies

The prevalence of stunting in Indonesia was still high at 24.4% based on the 2021 Indonesian Nutritional Status Study, while at 20.9% in Central Java. Policymakers need to make quick and practical decisions to support the creation of an environment that empowers communities in stunting prevention. This current study aimed to describe the cause and effect of stunting and various applicable models of community empowerment in various regions of Indonesia to prevent stunting cases. This study used a qualitative method and focus group discussions (FDG) for data collection. It was conducted in mid-2022. The participants were the technical officers of the provincial government, National Population and Family Planning Board (BKKBN), non-government organizations, nutritionists, child health experts and academicians, as many as 2 participants from each organization selected by the purposive sampling method. The FGD results showed several good practices in some regions. One initiative to replicate is providing stunting prevention training for cadres and mothers of childbearing age and health promotion programs for prospective brides at least three months before marriage. Besides, forming a team for collecting data on prospective brides, and improving the existing recording system is required to reduce stunting prevalence.

Role of Maternal in Preventing Stunting: a Systematic Review

OBJECTIVE

Currently, stunting is seen as a serious public health problem. Although its prevalence has decreased, the stunting rate is a large number of cases in the world.

METHODS

A literature search was conducted on electronic databases such as ProQuest, PubMed, ScienceDirect, and Google Scholar to identify relevant published articles from January 1, 2010, to July 1, 2020. Additional articles were identified from the reference lists and grey literature.

RESULT

Three main phases require the optimal mother roles to prevent stunting in children during the golden phase. These phases include the preconception phase, the prenatal phase, and the infant-toddlerhood phase. Various mother roles include fulfilling maternal, fetal, infant, and child nutrition, carrying out early breastfeeding initiation, exclusive breastfeeding, and appropriate complementary feeding, optimizing the environment for child development, optimizing family support, and avoiding various psychosocial factors that can be detrimental during growth, and child development.

CONCLUSION

The mother roles in the golden phase are crucial to preventing stunting in children. Although the conception period does not have a fetus, early strengthening of maternal nutrition must be done so that the mother's body is ready to undergo the prenatal phase for fetal development, which then continues in the infant phase - toddlerhood to adolescence.

Characteristics that modify the effect of small-quantity lipid-based nutrient supplementation on child growth: an individual participant data meta-analysis of randomized controlled trials

BACKGROUND

Meta-analyses show that small-quantity lipid-based nutrient supplements (SQ-LNSs) reduce child stunting and wasting. Identification of subgroups who benefit most from SQ-LNSs may facilitate program design.

OBJECTIVES

We aimed to identify study-level and individual-level modifiers of the effect of SQ-LNSs on child growth outcomes.

METHODS

We conducted a 2-stage meta-analysis of individual participant data from 14 randomized controlled trials of SQ-LNSs provided to children 6-24 mo of age (n = 37,066). We generated study-specific and subgroup estimates of SQ-LNS compared with control and pooled the estimates using fixed-effects models. We used random-effects meta-regression to examine study-level effect modifiers. In sensitivity analyses, we examined whether results differed depending on study arm inclusion criteria and types of comparisons.

RESULTS

SQ-LNS provision decreased stunting (length-for-age z score < -2) by 12% (relative reduction), wasting [weight-for-length (WLZ) z score < -2] by 14%, low midupper arm circumference (MUAC) (<125 mm or MUAC-for-age z score < -2) by 18%, acute malnutrition (WLZ < -2 or MUAC < 125 mm) by 14%, underweight (weight-for-age z score < -2) by 13%, and small head size (head circumference-for-age z score < -2) by 9%. Effects of SQ-LNSs generally did not differ by study-level characteristics including region, stunting burden, malaria prevalence, sanitation, water quality, duration of supplementation, frequency of contact, or average compliance with SQ-LNS. Effects of SQ-LNSs on stunting, wasting, low MUAC, and small head size were greater among girls than among boys; effects on stunting, underweight, and low MUAC were greater among later-born (than among firstborn) children; and effects on wasting and acute malnutrition were greater among children in households with improved (as opposed to unimproved) sanitation.

CONCLUSIONS

The positive impact of SQ-LNSs on growth is apparent across a variety of study-level contexts. Policy-makers and program planners should consider including SQ-LNSs in packages of interventions to prevent both stunting and wasting.This trial was registered at www.crd.york.ac.uk/PROSPERO as CRD42019146592.

Minimum acceptable diet and associated factors among children aged 6-23 months in Ethiopia

INTRODUCTION

The health and growth of children less than two years of age can be affected by the poor quality of complementary foods and poor feeding practices even with optimal breastfeeding. In Ethiopia, empirical evidence on the minimum acceptable diet and its associated factors is limited. Therefore, this study was aimed to assess the level of minimum acceptable diet and its associated factors among children aged 6-23 months in Addis Ababa Ethiopia.

METHODS

An institution-based Cross-sectional study was conducted among a total of 575 mother-child pairs. A simple random sampling technique was used to recruit participants. For infant and young child feeding practices, the data collection tools were adapted from world health organizations' standardized questionnaire which is developed in 2007. Data entry and analysis were performed using EPI data version 3.1 and SPSS version 20 respectively. Bivariable and multivariable logistic regression analyses were performed to determine predictor variables. Statistical significance was declared at p-value < 0.05.

RESULT

In this study, the level of minimum acceptable diet was found to be 74.6%.. About 90.6 and 80.2% of the children received minimum meal frequency and dietary diversity respectively. Having a husband secondary and above educational level [AOR = 4.789(95%CI:1.917-11.967)], being a housewife [AOR = 0.351(95% CI: 0.150-0.819)], having a history of more than three postnatal follow-ups [AOR = 2.616(95%CI:1.120-6.111], Having mothers age between 25 and 34 years [AOR = 2.051(95%CI:1.267-3.320)], being male child [AOR = 1.585(95%CI:1.052-2.388)] and having children age between 18 and 23 months [AOR = 3.026(95%CI:1.786-5.128)] were some of the factors significantly associated with a minimum acceptable diet.

CONCLUSION

In this study, the minimum acceptable diet among children aged 6-23 months was significantly associated with the educational status of the husband, mother's occupation, history of postnatal follow-up, age of the mother, sex of the child, and age of the child. Thus, attention should be given to educating the father, empowering mothers to have a job, promoting gender equality of feeding, and counseling on the benefit of postnatal care visits. In addition, the ministry of health should work on educating and advocating the benefit of feeding the recommended minimum acceptable diet to break the intergenerational cycle of malnutrition.

Dried small fish provide nutrient densities important for the first 1000 days

Inadequate nutrient intakes are prevalent among many populations in sub-Saharan Africa and increasing fish consumption among pregnant/lactating women and children is one strategy to improve diets and address nutrient deficiencies. We report the nutrient content of two fish-based recipes-fish powder and fish chutney-that contain dried small fish available in local markets in Zambia. The contribution of a serving of each recipe to the recommended daily intakes of iron, zinc, calcium and docosahexaenoic acid (DHA) for pregnant/lactating women and children 6-24 months was calculated because these nutrients are commonly deficient in African diets. We found that one 10-g serving of fish powder provides 20% or more of the daily calcium recommendation and 37% or more of the daily DHA recommendation for both pregnant/lactating women and children. A 30-g serving of fish chutney provides over 40% of the daily calcium recommendation for pregnant women and over 50% for lactating women. Additionally, we investigated the nutrient density (nutrients per kilocalorie) of the fish powder and compared it with the nutrient density of a small-quantity lipid-based nutrient supplement plus (SQ-LNS-plus). SQ-LNS-plus is designed to enhance children's diets by providing micronutrients and DHA. Fish powder is similar to SQ-LNS-plus in iron and zinc density and even higher in calcium and DHA density. Consuming dried small fish as part of a daily meal can be a viable strategy for combatting nutrient deficiencies in the first 1000 days.

Small-quantity lipid-based nutrient supplements for the prevention of child malnutrition and promotion of healthy development: overview of individual participant data meta-analysis and programmatic implications

Small-quantity lipid-based nutrient supplements (SQ-LNSs) were designed to provide multiple micronutrients within a food base that also provides energy, protein, and essential fatty acids, targeted towards preventing malnutrition in vulnerable populations. Previous meta-analyses demonstrated beneficial effects of SQ-LNSs on child growth, anemia, and mortality. To further examine the efficacy and effectiveness of SQ-LNSs, and explore study-level and individual-level effect modifiers, we conducted an individual participant data meta-analysis of 14 randomized controlled trials of SQ-LNSs provided to children 6-24 mo of age (n > 37,000). We examined growth, development, anemia, and micronutrient status outcomes. Children who received SQ-LNSs had a 12-14% lower prevalence of stunting, wasting, and underweight; were 16-19% less likely to score in the lowest decile for language, social-emotional, and motor development; had a 16% lower prevalence of anemia; and had a 64% lower prevalence of iron-deficiency anemia compared with control group children. For most outcomes, beneficial effects of SQ-LNSs were evident regardless of study-level characteristics, including region, stunting burden, malaria prevalence, sanitation, water quality, duration of supplementation, frequency of contact, or average reported compliance with SQ-LNSs. For development, the benefits of SQ-LNSs were greater in populations with higher stunting burden, in households with lower socioeconomic status, and among acutely malnourished children. For hemoglobin and iron status, benefits were greater in populations with higher anemia prevalence and among acutely malnourished children, respectively. Thus, targeting based on potential to benefit may be worthwhile for those outcomes. Overall, co-packaging SQ-LNSs with interventions that reduce constraints on response, such as the prevention and control of prenatal and child infections, improving health care access, and promotion of early child development, may lead to greater impact. Policymakers and program planners should consider including SQ-LNSs in strategies to reduce child mortality, stunting, wasting, anemia, iron deficiency, and delayed development. This study was registered at www.crd.york.ac.uk/PROSPERO as CRD42019146592, CRD42020159971, and CRD42020156663.

Characteristics that modify the effect of small-quantity lipid-based nutrient supplementation on child anemia and micronutrient status: an individual participant data meta-analysis of randomized controlled trials

BACKGROUND

Small-quantity lipid-based nutrient supplements (SQ-LNSs) have been shown to reduce the prevalence of child anemia and iron deficiency, but effects on other micronutrients are less well known. Identifying subgroups who benefit most from SQ-LNSs could support improved program design.

OBJECTIVES

We aimed to identify study-level and individual-level modifiers of the effect of SQ-LNSs on child hemoglobin (Hb), anemia, and inflammation-adjusted micronutrient status outcomes.

METHODS

We conducted a 2-stage meta-analysis of individual participant data from 13 randomized controlled trials of SQ-LNSs provided to children 6-24 mo of age (n = 15,946). We generated study-specific and subgroup estimates of SQ-LNSs compared with control, and pooled the estimates using fixed-effects models. We used random-effects meta-regression to examine potential study-level effect modifiers.

RESULTS

SQ-LNS provision decreased the prevalence of anemia (Hb < 110 g/L) by 16% (relative reduction), iron deficiency (plasma ferritin < 12 µg/L) by 56%, and iron deficiency anemia (IDA; Hb < 110 g/L and plasma ferritin <12 µg/L) by 64%. We observed positive effects of SQ-LNSs on hematological and iron status outcomes within all subgroups of the study- and individual-level effect modifiers, but effects were larger in certain subgroups. For example, effects of SQ-LNSs on anemia and iron status were greater in trials that provided SQ-LNSs for >12 mo and provided 9 (as opposed to <9) mg Fe/d, and among later-born (than among first-born) children. There was no effect of SQ-LNSs on plasma zinc or retinol, but there was a 7% increase in plasma retinol-binding protein (RBP) and a 56% reduction in vitamin A deficiency (RBP < 0.70 µmol/L), with little evidence of effect modification by individual-level characteristics.

CONCLUSIONS

SQ-LNSs can substantially reduce the prevalence of anemia, iron deficiency, and IDA among children across a range of individual, population, and study design characteristics. Policy-makers and program planners should consider SQ-LNSs within intervention packages to prevent anemia and iron deficiency.This trial was registered at www.crd.york.ac.uk/PROSPERO as CRD42020156663.

Gene expression profiles compared in environmental and malnutrition enteropathy in Zambian children and adults

BACKGROUND

Environmental enteropathy (EE) contributes to growth failure in millions of children worldwide, but its relationship to clinical malnutrition has not been elucidated. We used RNA sequencing to compare duodenal biopsies from adults and children with EE, and from children with severe acute malnutrition (SAM), to define key features of these malnutrition-related enteropathies.

METHODS

RNA was extracted and sequenced from biopsies of children with SAM in hospital (n=27), children with non-responsive stunting in the community (n=30), and adults living in the same community (n=37) using an identical sequencing and analysis pipeline. Two biopsies each were profiled and differentially expressed genes (DEGs) were computed from the comparisons of the three groups. DEG lists from these comparisons were then subjected to analysis with CompBio software to assemble a holistic view of the biological landscape and IPA software to interrogate canonical pathways.

FINDINGS

Dysregulation was identified in goblet cell/mucin production and xenobiotic metabolism/detoxification for both cohorts of children, versus adults. Within the SAM cohort, substantially greater induction of immune response and barrier function, including NADPH oxidases was noted, concordant with broadly reduced expression of genes associated with the brush border and intestinal structure/transport/absorption. Interestingly, down regulation of genes associated with the hypothalamic-pituitary-adrenal axis was selectively observed within the cohort of children with stunting.

INTERPRETATION

Gene expression profiles in environmental enteropathy and severe acute malnutrition have similarities, but SAM has several distinct transcriptional features. The intestinal capacity to metabolise drugs and toxins in malnourished children requires further study.

FUNDING

Bill & Melinda Gates Foundation (OPP1066118).

Calcium Biofortification of Crops-Challenges and Projected Benefits

Despite Calcium (Ca) being an essential nutrient for humans, deficiency of Ca is becoming an ensuing public health problem worldwide. Breeding staple crops with higher Ca concentrations is a sustainable long-term strategy for alleviating Ca deficiency, and particular criteria for a successful breeding initiative need to be in place. This paper discusses current challenges and projected benefits of Ca-biofortified crops. The most important features of Ca nutrition in plants are presented along with explicit recommendations for additional exploration of this important issue. In order for Ca-biofortified crops to be successfully developed, tested, and effectively implemented in most vulnerable populations, further research is required.

Mapping Geographical Differences and Examining the Determinants of Childhood Stunting in Ethiopia: A Bayesian Geostatistical Analysis

Understanding the specific geographical distribution of stunting is essential for planning and implementing targeted public health interventions in high-burdened countries. This study investigated geographical variations in the prevalence of stunting sub-nationally, and the determinants of stunting among children under 5 years of age in Ethiopia. We used the 2016 Ethiopia Demographic and Health Survey (EDHS) dataset for children aged 0–59 months with valid anthropometric measurements and geographic coordinates (n = 9089). We modelled the prevalence of stunting and its determinants using Bayesian geospatially explicit regression models. The prevalence of stunting among children under five years was 36.3% (95% credible interval (CrI); 22.6%, 51.4%) in Ethiopia, with wide variations sub-nationally and by age group. The prevalence of childhood stunting ranged from 56.6% (37.4–74.6%) in the Mekelle Special zone of the Tigray region to 25.5% (10.5–48.9%) in the Sheka zone of the Southern Nations, Nationalities and Peoples region. Factors associated with a reduced likelihood of stunting in Ethiopia included non-receipt of breastmilk, mother’s BMI (overweight/obese), employment status (employed), and higher household wealth, while the enablers were residence in the “arid” geographic areas, small birth size of the child, and mother’s BMI (underweight). The prevalence and determinants of stunting varied across Ethiopia. Efforts to reduce the burden of childhood stunting should consider geographical heterogeneity and modifiable risk factors.

Nutrition information-seeking behaviour of Indonesian pregnant women

OBJECTIVE

To investigate Indonesian pregnant women's experiences in seeking and receiving nutrition information.

DESIGN

Qualitative semi-structured interviews analysed with thematic analysis.

SETTING AND PARTICIPANTS

Twenty-three pregnant women in Malang City, Indonesia were interviewed between December 2018 and January 2019.

FINDINGS

Four key themes emerged concerning pregnant women's nutrition information-seeking behaviour: (i) Most women passively received nutrition information rather than actively seeking it; (ii) Women sought and received nutrition information from multiple sources including health professionals, social networks and the Internet, with varying levels of trust; (iii) Health professionals, including doctors, midwives and nutritionists, did not provide consistent and timely information; and (iv) Most women could identify gaps between nutrition information provided by health professionals and their expectations.

KEY CONCLUSIONS AND IMPLICATIONS FOR PRACTICE

This study identified opportunities for Indonesian health authorities to enhance their nutrition education services. This study suggests improvements that could extend the systematic provision of nutrition education to meet the needs of pregnant women in developing countries.

Determinants of stunting in children under five years of age in the Bone regency

OBJECTIVE

This study aims to determine the relationship between antenatal care history and the number of family members in the incidence of stunting in infants aged 6-59 months.

METHODS

This type of research is a cross sectional observational study in the Palakka Kahu District Health Center Working Area Bone involving 165 children selected proportionally cluster random sampling. The instrument of this research was using questionnaires and baby length board height measurements. The analysis used univariate, bivariate (chi-square test).

RESULTS

The results of this study indicate that based on the characteristics of toddlers obtained that male sex 53.94%, female 46.06%, the average age group of infants aged 6-15 months 20.61%, normal birth weight 70.30%, Low Birth Weight 29.70%. It is suggested that improving performance should be more active in visiting pregnant women and providing education about pregnancy and family members should help in paying attention to parenting children to avoid stunting.

CONCLUSION

There is a relationship between Pregnancy Examination History and the incidence of stunting in children aged 6-59 months in the Work Area of Palakka Kahu Community Health Center in Bone Regency and there is no relationship between the number of family members and stunting in children aged 6-59 months in the Peskesmas Work Area Palakka Kahu Bone Regency.

A Microbiota-Directed Food Intervention for Undernourished Children

BACKGROUND

More than 30 million children worldwide have moderate acute malnutrition. Current treatments have limited effectiveness, and much remains unknown about the pathogenesis of this condition. Children with moderate acute malnutrition have perturbed development of their gut microbiota.

METHODS

In this study, we provided a microbiota-directed complementary food prototype (MDCF-2) or a ready-to-use supplementary food (RUSF) to 123 slum-dwelling Bangladeshi children with moderate acute malnutrition between the ages of 12 months and 18 months. The supplementation was given twice daily for 3 months, followed by 1 month of monitoring. We obtained weight-for-length, weight-for-age, and length-for-age z scores and mid-upper-arm circumference values at baseline and every 2 weeks during the intervention period and at 4 months. We compared the rate of change of these related phenotypes between baseline and 3 months and between baseline and 4 months. We also measured levels of 4977 proteins in plasma and 209 bacterial taxa in fecal samples.

RESULTS

A total of 118 children (59 in each study group) completed the intervention. The rates of change in the weight-for-length and weight-for-age z scores are consistent with a benefit of MDCF-2 on growth over the course of the study, including the 1-month follow-up. Receipt of MDCF-2 was linked to the magnitude of change in levels of 70 plasma proteins and of 21 associated bacterial taxa that were positively correlated with the weight-for-length z score (P<0.001 for comparisons of both protein and bacterial taxa). These proteins included mediators of bone growth and neurodevelopment.

CONCLUSIONS

These findings provide support for MDCF-2 as a dietary supplement for young children with moderate acute malnutrition and provide insight into mechanisms by which this targeted manipulation of microbiota components may be linked to growth. (Supported by the Bill and Melinda Gates Foundation and the National Institutes of Health; ClinicalTrials.gov number, NCT04015999.).

Mobilising evidence, data, and resources to achieve global maternal and child undernutrition targets and the Sustainable Development Goals: an agenda for action

As the world counts down to the 2025 World Health Assembly nutrition targets and the 2030 Sustainable Development Goals, millions of women, children, and adolescents worldwide remain undernourished (underweight, stunted, and deficient in micronutrients), despite evidence on effective interventions and increasing political commitment to, and financial investment in, nutrition. The COVID-19 pandemic has crippled health systems, exacerbated household food insecurity, and reversed economic growth, which together could set back improvements in undernutrition across low-income and middle-income countries. This paper highlights how the evidence base for nutrition, health, food systems, social protection, and water, sanitation, and hygiene interventions has evolved since the 2013 Lancet Series on maternal and child nutrition and identifies the priority actions needed to regain and accelerate progress within the next decade. Policies and interventions targeting the first 1000 days of life, including some newly identified since 2013, require renewed commitment, implementation research, and increased funding from both domestic and global actors. A new body of evidence from national and state-level success stories in stunting reduction reinforces the crucial importance of multisectoral actions to address the underlying determinants of undernutrition and identifies key features of enabling political environments. To support these actions, well-resourced nutrition data and information systems are essential. The paper concludes with a call to action for the 2021 Nutrition for Growth Summit to unite global and national nutrition stakeholders around common priorities to tackle a large, unfinished undernutrition agenda-now amplified by the COVID-19 crisis.

Gendered Intrahousehold Bargaining Power is Associated with Child Nutritional Status in Nepal

BACKGROUND

Women's intrahousehold bargaining power is an important determinant of child nutrition in Nepal, but a better understanding is needed on how men's bargaining power is related to child nutrition.

OBJECTIVES

We examined the relation of women's and men's household bargaining power with child height-for-age z score (HAZ).

METHODS

We analyzed cross-sectional data from 2012, collected as an impact evaluation baseline of the Suaahara 1 program. A subsample of households with data on women's and men's intrahousehold bargaining power (n = 2170) with children aged 0-59 mo across Nepal was considered for this analysis. Intrahousehold bargaining power consisted of 4 domains: 1) ownership and control of assets, 2) social participation, 3) time allocation to work activities (workload), and 4) household decision-making control. Using multilevel methods, we analyzed associations between HAZ and 1) women's bargaining power, 2) men's bargaining power, and 3) women's and men's bargaining power, adjusted for individual- and household-level confounding factors and clustering.

RESULTS

Women's ownership and control of assets was positively associated with HAZ when women's and men's domains were modeled together (β: 0.0597, P = 0.026). Men's social participation was positively associated with HAZ in the men's model (β: 0.233, P < 0.001) and the model with women's and men's domains (β: 0.188, P = 0.001). Women's workload was negatively associated with HAZ in the women's model (β: -0.0503, P = 0.014) and in the model with women's and men's domains (β: -0.056, P = 0.008). Household decision making for women (β: -0.0631, P = 0.007) and for men (β: -0.0546, P = 0.017) were negatively associated with HAZ in the gender-specific models. Women's social participation, men's ownership and control of assets, and men's workload were not associated with HAZ.

CONCLUSIONS

Women's workload and ownership and control of assets and men's social participation may be important in improving child HAZ in Nepal. Nutrition interventions should address women's intrahousehold bargaining power and promote men's social engagement.

The effect of nutrition and reproductive health education of pregnant women in Indonesia using quasi experimental study

BACKGROUND

Almost one-third of children under 5 years old in Indonesia suffer from stunting. Stunting can be prevented optimally during pregnancy as the initial phase of the first 1000 days of life. This study aims to determine the effect of nutrition and reproductive health education of pregnant women in Bogor Regency, Indonesia.

METHODS

A quasi-experimental study was conducted among 194 pregnant women from August to November 2019. The pregnant women were randomly selected from four different villages in Bogor Regency. The intervention group (n = 97) received 2 h of nutrition and reproductive health education in small groups (four or five mothers per group) every 2 weeks for 3 consecutive months. This interactive education was given by facilitators using techniques such as lectures, role-playing, simulation, and games. The control group (n = 97) received regular health care services. A structured questionnaire was applied to collect data consisting of maternal characteristics, nutritional and reproductive health knowledge, attitudes, and practices in the intervention and control groups. Data were analysed using t-test and chi-square analysis.

RESULTS

Pregnant women in the intervention group indicated a significant increase in knowledge, attitudes, and practices regarding nutrition and reproductive health after receiving education. The pre-test and post-test mean scores in the intervention group were 55.1 and 83.1 for overall knowledge, 40.2 and 49.0 for attitudes, and 36.2 and 40.2 for practices, respectively. In the control group, there was no significant difference between the pre-test and post-test mean scores for these three variables. There was a significant difference (P < 0.001) in the post-test mean between the intervention group and the control group, but the difference was not significant (P > 0.05) in the pre-test.

CONCLUSION

Providing nutrition and reproductive health education through small groups with interactive methods improves the knowledge, attitudes, and practices of pregnant women. This intervention has the potential to be replicated and developed for large-scale implementation by optimising collaboration between government, non-governmental organizations, and maternal and child health service providers.

Prenatal dietary diversity may influence underweight in infants in a Ugandan birth-cohort

Growth faltering in early childhood is prevalent in many low resource countries. Poor maternal dietary diversity during pregnancy has been linked with increased risk of fetal growth failure and adverse birth outcomes but may also influence subsequent infant growth. Our aim is to assess the role of prenatal maternal dietary diversity in infant growth in rural Uganda. Data from 3291 women and infant pairs enrolled in a birth cohort from 2014 to 2016 were analysed (NCT04233944). Maternal diets were assessed using dietary recall in the second or third trimesters of pregnancy. Maternal dietary diversity scores (DDS) were calculated using the FAO Minimum Dietary Diversity for Women (MDD‐W). Cox regression models were used to evaluate associations of the DDS with the incidence of underweight, stunting and wasting in infants from 3 to 12 months, adjusting for confounding factors. The median DDS for women was low, at 3.0 (interquartile range 3.0–4.0), relative to the threshold of consuming five or more food groups daily. Infants of women in highest quartile of DDS (diverse diets) were less likely to be underweight (adjusted hazard ratio: 0.70, 95% confidence interval: 0.61, 0.80) compared with infants of women in Quartile 1 (p for trend <0.001) in models controlling for maternal factors. There was no significant association between DDS and stunting or wasting. Our findings suggest a relationship between higher maternal dietary diversity and lower risk of underweight in infancy. These findings suggest that programmes to improve infant growth could additionally consider strengthening prenatal dietary diversity to improve child outcomes globally.

Effects of responsive caregiving and learning opportunities during pre-school ages on the association of early adversities and adolescent human capital: an analysis of birth cohorts in two middle-income countries

BACKGROUND

Millions of children globally are at risk of not reaching their developmental potential because of early adversities. We hypothesised that responsive caregiving and learning opportunities, components of nurturing care, at pre-school ages might mitigate the effects of adversities.

METHODS

We analysed longitudinal birth cohort data from Brazil (1993 Pelotas Birth Cohort, n=632) and South Africa (Birth to Twenty Plus [Bt20+] Birth Cohort, n=1130) to assess whether responsive caregiving and learning opportunities at pre-school ages (2-4 years) modified associations between cumulative early adversities and adolescent human capital. The cumulative adversities score (range 0-9) included household wealth and crowding; mothers' schooling, height, age, and mental health; and children's birthweight, gestational age, and length at age 12 months. We extracted data on responsive caregiving and learning opportunities from the Early Childhood Home Observation for Measurement of the Environment inventory, assessed at age 4 years (1993 Pelotas cohort) and 2 years (Bt20+ cohort). We examined three human capital indicators: intelligence quotient (IQ) assessed at age 18 years (1993 Pelotas cohort) and 16 years (Bt20+ cohort); psychosocial adjustment assessed at age 15 years and 14 years, respectively; and height assessed at age 18 years and 16 years, respectively. We used linear models with interaction terms between cumulative adversities, and responsive caregiving and learning opportunities, to predict adolescent human capital.

FINDINGS

For each additional Z score of total cumulative adversity, adolescent IQ decreased by 5·89 (95% CI -7·29 to -4·50) points in the 1993 Pelotas cohort (p<0·0001) and 2·69 (-4·52 to -0·86) points in the Bt20+ cohort (p=0·0039). After adjusting for total cumulative adversities, adolescent IQ points increased by 5·47 (95% CI 4·20 to 6·74) with each additional Z score of learning opportunities and by 2·26 (0·93 to 3·59) with each additional Z score of responsive caregiving in the 1993 Pelotas cohort, but not in the Bt20+ cohort (0·86 [-0·12 to 1·83] and 0·65 [-0·32 to 1·61], respectively). Associations between early adversities and IQ were modified by learning opportunities in the 1993 Pelotas cohort (beta coefficient for interaction 1·74, 95% CI 0·43 to 3·04; p=0·0092) and by responsive caregiving in the Bt20+ cohort (2·24, 0·94 to 3·54; p=0·0075). High nurturing environment attenuated the negative effects of early cumulative adversities on IQ.

INTERPRETATION

Early nurturing home environments protect young children against effects of early adversities on adolescent IQ, with long-term positive associations on adolescent cognition in two middle-income countries.

FUNDING

Bill & Melinda Gates Foundation.

Impact of nutrient supplementation on maternal nutrition and child growth and development in Sub-Saharan Africa: the case of small-quantity lipid-based nutrient supplements

Micronutrient deficiencies remain common among women and children in Sub-Saharan Africa (SSA); in pregnant/lactating women, the intakes of essential fatty acids may also be low. Enriching home-prepared foods with small-quantity lipid-based nutrient supplements (SQ-LNSs) is a promising new strategy of delivering additional micronutrients, essential fatty acids and good quality protein to women and children. This narrative review aimed to examine the impact of SQ-LNSs supplementation among women and infants and young children in SSA, and to discuss the differential impact of SQ-LNS consumption across different settings. Papers reporting randomized trials conducted in SSA in which apparently healthy women and/or ≥6-mo-old children received SQ-LNSs were identified through electronic and manual searches. Prenatal SQ-LNS consumption reduced the prevalence of low gestational weight gain in Ghana when compared with multiple micronutrients supplementation, and was associated with poorer iron/hemoglobin status when compared with iron-plus-folic acid supplementation. SQ-LNSs received alone or as intervention package improved infant/child growth in two trials in Ghana and one trial each in Burkina Faso, Kenya, Zimbabwe and South Africa, but had no impact on growth in two trials in Malawi. SQ-LNSs supplementation improved motor development in Ghana, Burkina Faso, Malawi, Kenya, and South Africa, but had no impact on language, socio-emotional, and executive functions in Ghana and Malawi and on Griffiths' developmental scores in Malawi. SQ-LNSs may contribute to improving child growth in SSA. More research is needed to determine the iron level in SQ-LNSs effective for improving both maternal hemoglobin/iron status and birth outcomes.