A systematic review and meta-analysis of the prevalence of childhood undernutrition in North Africa

The prevalence of long-term neurodevelopmental outcomes in preterm-born children in low- and middle-income countries: a systematic review and meta-analysis of developmental outcomes in 72 974 preterm-born children

Background

Preterm birth is associated with an increased risk of adverse neurodevelopmental outcomes. However, prevalence estimates of adverse neurodevelopmental outcomes on preterm born children in low - and middle - income countries (LMICs) remain unclear. In this systematic review and meta-analysis, we aim to estimate the prevalence of adverse neurodevelopmental outcomes in preterm-born children in LMICs.

Methods

We comprehensively searched six electronic databases - Medline, Embase, CINAHL, PsycInfo, Scopus, and Web of Science, without language and date restrictions. We included observational studies conducted in LMICs that reported prevalence of any type of neurodevelopmental outcome in children born preterm using a validated method or clinical diagnosis, and outcome measurement was performed in at least 100 eligible children at age ≥12 months. The primary outcomes of interest were a composite of any neurodevelopmental impairment, cerebral palsy, visual impairment/blindness, hearing impairment/deafness, motor impairment, developmental delays, learning difficulties, and adverse behavioural and socio-emotional outcomes. We used the JBI critical appraisal checklist to assess the quality of the included studies, and prevalence estimates were calculated using a random-effects meta-analysis model.

Results

A total of 47 data sets from 12 countries involving 72 974 preterm-born children were included. The estimated pooled prevalence of overall neurodevelopmental impairment and cerebral palsy was 16% (95% confidence interval (CI) = 11-21%) and 5% (95% CI = 3-6%), respectively. The pooled prevalence of developmental delays across different domains ranged from 8 to 13%. Lower prevalence was found in hearing impairment/deafness and visual impairment/blindness (1%). Higher prevalences were observed with decreasing gestational age and birth weight.

Conclusions

There is a high burden of adverse neurodevelopmental outcomes in preterm born children in LMICs. Such prevalence estimates are essential in informing clinical and public health policy, allocating scarce resources, and directing further research to improved outcomes in these settings.

Registration

PROSPERO: CRD42024569564.

The Impact of Undernutrition and Anemia on HIV-Related Mortality Among Children on ART in Sub-Saharan Africa: A Systematic Review and Meta-Analysis

BACKGROUND

Although there have been significant advancements in providing HIV-infected children with access to antiretroviral therapy (ART), the mortality rates have remained unacceptably high. Inadequate nutrient intake or absorption is a widespread problem in several African nations, resulting in undernutrition and anemia. However, the pooled effect of malnutrition and anemia on HIV-related death related to children receiving ART was not investigated in sub-Saharan Africa.

METHODS

We searched multiple electronic databases (PubMed/MEDLINE, Embase, CINAHL, and Web of Science) for observational studies published between January 1, 2010, and April 24, 2024 that reported the risk factors or effects of undernutrition and, anemia on HIV-related mortality among children. Study selection, data extraction, and quality evaluation were carried out separately by two reviewers. A meta-analysis was conducted using random effect models.

RESULTS

The review included 27 studies with a combined total of 61,796 study participants. The study findings showed that severe wasting (HR: 2.49; 95% CI: 1.87-3.30), being underweight (HR: 2.11; 95% CI: 1.64-2.72), and Anemia (HR: 2.58; 95% CI: 2.08-3.19) were highly linked to HIV-related death among children. The risk of death due to anemia was greater among children under the age of 5 years than older children.

CONCLUSION

Undernutrition and anemia in sub-Saharan African children increased the risk of HIV-related death. The impact of malnutrition and anemia among under 5 years old children with HIV/AIDS was more pronounced, suggesting that these conditions at this early age can have more serious consequences for a child's survival. The importance of combining nutrition with HIV treatment programs in sub-Saharan African countries is crucial.

Trends in the Prevalence and Factors Associated with Undernutrition in Tunisian Children Aged 0-23 Months

BACKGROUND

In recent years, undernutrition has remained a significant public health issue in Tunisia, increasing the risk of illness and mortality in young children. Therefore, this study aims to analyse the prevalence and factors contributing to undernutrition among Tunisian children aged 0-23 months.

METHODS

The study included 3265 children aged 0-23 months from the 2011-2023 Tunisia Multiple Indicator Cluster Surveys (MICS). Trends and logistic regression analyses were used to determine the prevalence and predictors of undernutrition.

RESULTS

The prevalence of stunting, wasting, and underweight in infants and children aged 0-23 months has increased by 3.3%, 0.5%, and 2.1%, respectively. Stunting and underweight were more common among infants aged 0-5 months (11.8% for stunting, 8.9% for underweight, p < 0.01), and first-time mothers (8.3% for stunting, 4.1% for underweight, p < 0.01). In 2023, compared to 2011, the odds of stunting, wasting, and being underweight had increased by 22%, 16%, and 70%, respectively. Infants aged 0-5 months had higher odds of undernutrition in all three indices. Children of obese or overweight mothers, and those who started breastfeeding late, were more likely to be stunted. Boys had significantly higher odds of wasting and underweight. Children with low birth weight, and duration of breastfeeding > 12 months, had significantly higher odds of being underweight.

CONCLUSIONS

This study shows that infants aged 0-5 months, first-time mothers, boys, and children from poor households in Tunisia are at a higher risk of undernutrition. To address the growing issue of undernutrition in Tunisian children, enhancing maternal and child health and nutrition services, improving parental education, and implementing community-based programs that provide breastfeeding and nutritional education to infants born to new mothers and mothers with high/low BMI is recommended.

Nutritional status of infants and young children in India across three decades: Analysis of five national family health surveys

BACKGROUND

Three indicators of early childhood undernutrition and associated factors are evaluated among under-5 children in five National Family Health Surveys in India spanning 1992 to 2021.

METHODS

Data for 533,495 children under 5 years of age (U-5) were analysed in the context of three commonly used indicators of early childhood undernutrition - wasting, stunting and underweight. In addition to descriptive and inferential statistics, binary logistic regression was used to estimate the effects of specific explanatory factors on the three indicators using adjusted odds ratios.

RESULTS

Over the three-decade interval, stunting was reduced by 22.1% in boys and 20.9% in girls, followed by underweight, 19.3% in boys and 17.4% in girls; wasting, in contrast, was reduced to a considerably lesser extent, 2.8% in boys and 0.9% in girls. Demographic, maternal and socioeconomic factors were associated with the incidence of early childhood undernutrition, specifically among young mothers and those with less education in low-income families, and among children from Scheduled Tribes or Scheduled Castes. Stunting and underweight declined significantly over the past three decades while wasting changed negligibly. The disparity in the occurrence of early childhood undernutrition was apparent throughout socioeconomic categories and regions of India.

CONCLUSIONS

The results highlight the need for special programs aimed at reducing waste among children and also the need for customized initiatives focused on the improvement of maternal education and wealth in addition to other ancillary factors related to regional variation.

Effect of a Nutritional Education Program on Children's Undernutrition in Indonesia: A Randomized Controlled Trial

INTRODUCTION

To assess effects of a nutritional education program on improving mothers' undernutrition knowledge, self-efficacy, and complementary feeding practices, and reducing undernutrition in children aged <2 years.

METHOD

A randomized controlled trial was conducted at a community healthcare center in Indonesia. The intervention group participated in a 4-week nutritional education program; the control group received standard care (n = 80; 1:1 ratio). Measurements consisted of mothers' knowledge of undernutrition, self-efficacy, and complementary feeding practices, and children's anthropometric indicators.

RESULTS

Intervention group mothers improved their understanding of undernutrition, self-efficacy, and complementary feeding practices compared to the control group. Additionally, children in the intervention group exhibited increased mean Z-scores for stunting, wasting, and being underweight at 12 and 24 weeks following the intervention.

DISCUSSION

Healthcare professionals can regularly provide nutritional education programs related to managing undernutrition and complementary feeding practices for mothers with children aged <2 years to prevent and improve undernutrition.

Factors Associated with Childhood Stunting in Four North African Countries: Evidence from Multiple Indicator Cluster Surveys, 2014-2019

Stunting remains a significant public health issue among North African children, even though significant progress has been made in reducing hunger and poverty. This study aimed to identify factors associated with stunting among children in four North African countries (Algeria, Egypt, Sudan, and Tunisia). A logistic regression model adjusted for clustering and sampling weights was used to identify factors associated with childhood stunting. It was found that the prevalence of stunting in Algeria, Egypt, Sudan, and Tunisia was 9.7%(95% CI: 9.1, 10.3), 21.1% (95% CI: 19.8, 22.5), 33.8% (95% CI: 32.7, 34.9), and 8.2% (95% CI: 7.3, 9.2), respectively. Stunting was more common among children from Sudan and Egypt. Our analysis showed that a low wealth index, being a boy, low BMI, dietary diversity <5 foods, and low birth weight were associated with stunting from 0 to 23 months; however, rural residency, a low-educated mother, low BMI, family size, and diarrhea were associated with stunting from 24 to 59 months. A collaborative approach that prioritizes maternal health and nutrition, invests in struggling families, and customizes interventions to meet the specific needs of each North African country is essential for eradicating undernutrition by 2030.

Wasting and Underweight in Northern African Children: Findings from Multiple-Indicator Cluster Surveys, 2014-2018

Northern Africa faces multiple severe detrimental factors that impact child nutrition. This study aimed to identify the predictors for wasting and underweight in children aged 0-59 months in Northern Africa. We analysed pooled cross-sectional data from multiple-indicator cluster surveys conducted in four countries (Algeria, Egypt, Sudan, and Tunisia) involving 37,816 children aged 0-59 months. A logistic regression analysis was used, considering clustering and sampling weights, to identify factors associated with wasting and underweight among children aged 0-23, 24-59, and 0-59 months. Among children aged 0-59 months, the overall prevalence was 7.2% (95% CI: 6.8-7.5) for wasting and 12.1% (95% CI:11.7-12.5) for underweight. Sudan and Algeria had the highest rates of wasting, while Sudan and Egypt had the highest rates of underweight. Multiple regression analyses indicate that factors associated with wasting and being underweight include child age, country, rural residency, poor wealth index, being male, birth order, maternal education, body mass index, media use, lack of diverse foods, longer duration of breastfeeding, perceived small baby size, and diarrhoea. These findings highlight the importance of implementing targeted health and nutrition initiatives, such as maternal education, family planning, and community engagement. Priority should be given to children from underprivileged areas who lack proper dietary variety.