Windows of opportunity for setting the critical path for healthy growth

Understanding delays in the introduction of complementary foods in rural Ethiopia

Age-appropriate breastfeeding and introduction to complementary foods can shape child feeding practices, ensure adequate energy and nutrient intake and prevent linear growth faltering. This study aimed to assess mothers' and health workers' knowledge of timely introduction to complementary foods and evaluate the relationship between delays in complementary feeding and subsequent linear growth. We conducted two rounds of surveys (March/August 2017) among 249 health workers (n = 249) and caregivers (n = 2635) of children 6-23 months of age. We collected information about socio-demographic characteristics, knowledge and practice related to timely introduction to complementary foods. The study was conducted in households from the Productive Safety Net Programme (PSNP) districts, in four highland regions of Ethiopia. Delays in the introduction to complementary feeding were widespread with 53% of children 6-8 months of age not consuming solid, semisolid or soft foods in the past 24 h. After controlling for child, caregiver and household characteristics, children not introduced to complementary foods by 6-8 months had a 0.48 SD lower length-for-age z-score at 12-15 months. Caregivers' knowledge was strongly and inversely correlated with untimely introduction of complementary foods in logistic regressions (OR = 0.55, p < 0.01). In turn, local health extension worker's knowledge was strongly correlated with caregiver's knowledge. Consequently, frequent and timely visits by health extension workers emphasising not only on what to feed but also when and how to feed a child are needed. Innovative ways of increasing reach, intensity and frequency of nutrition messaging by using the PSNP interactions as an additional point of contact would need to be explored further.

Empowering women can improve child dietary diversity in Ethiopia

Women empowerment is an underlying factor of child feeding and nutrition. However, the lack of standardized measurements has made it difficult to design interventions that embed women empowerment and measure their impacts. This study aimed to assess temporal trends in women empowerment in Ethiopia and evaluate their contribution towards improving dietary diversity in infants and young children. We used women and child data from the Ethiopian Demographic and Health Survey 2005, 2011, and 2016, yielding a total sample of 6113 mother-child pairs. The survey-based women's empowerment index (SWPER) developed and validated for use in Africa was used to assess three dimensions of women empowerment: (i) social autonomy, (ii) decision making; and (iii) attitude to violence. We used multiple-linear and multivariable logistic regression to assess the associations between SWPER and the number of food groups consumed/and the minimum dietary diversity (MDD). To determine drivers of changes over time, a regression decomposition analysis was run. Women empowerment indices have improved over the 2005-2016 period, but a significant proportion of women had low standardized SWPER scores for autonomy/social independence (47%) and attitude to violence (49%) domains in 2016. SWPER autonomy and SWPER decision-making scores were strongly associated with the odds of meeting MDD. Changes in women empowerment accounted for 17% of the improvements in MDD between 2005 and 2016. SWPER was a stronger predictor of the change in MDD, than known predictors like wealth, child age, and urban residence. As a critical underlying driver of child nutrition, women empowerment should be boldly addressed and integrated in nutrition interventions.

Feed handling practices, aflatoxin awareness and children's milk consumption in the Sidama region of southern Ethiopia

Consumption of milk is linked to improved nutrient intake and reduced risk of child malnutrition in low and middle-income countries. However, these benefits are contingent on the safety and quality of the milk. Milk consumption may alleviate the widespread risk of malnutrition in rural Ethiopia, but milk-borne contaminants may also compromise child health. We aimed to: i) identify the types of dairy feeds used, their storage conditions, and potential risk of aflatoxin contamination; ii) assess stakeholders' knowledge about aflatoxin contamination along the value chain; and iii) assess parental practices on feeding milk to infants and young children. This qualitative study was conducted in the Sidama region, southern Ethiopia. In-depth interviews (n = 12) and key-informant interviews (n = 18) were conducted with actors along the dairy value chain. Focus-group discussions were conducted with farmers (9FGD/n = 129) and child caregivers (9FGD/n = 122). Study participants were selected to represent a rural-urban gradient, as well as low- and high- dairy cow holdings. We found that while animal-feed processors and their distribution agents had relatively good knowledge about aflatoxin, farmers and retailers did not. Feed storage conditions were poor. Many respondents linked moldy feeds to animal health but not to human health. Farmers' feed choice was influenced by cost, seasonality, and herd size. Small-holding farmers had limited access to commercial feed. Children's consumption of milk was limited to skim milk, as butter was extracted and sold for income. The high cost of dairy products also led some parents to dilute skim milk with water before feeding children, compromising the nutritional value and safety of the milk. Our findings underscore the need to address the gaps in aflatoxin and food safety knowledge, improve storage conditions, and ensure the availability of quality feed to increase the sector's productivity, but most importantly to protect consumers' health and well-being, especially infants and young children.

[Development and Influencing Factors of Oral Microbiota in Early Life]

Oral cavity, an important component of and the gateway to the digestive system, is also the colonization site and the microecological environment of trillions of microorganisms. The establishment and succession of oral microbiota are of great importance for the development of human immune system, and function as a major determinant of oral and systemic health. Within a few hours after birth, early colonizers such as Streptococcus and Lactobacillus can be detected in an infant's mouth. The oral microbiota communities mature gradually along with the growth of the host, expanding in their species abundance and diversity. In addition to genetic factors, a number of cross-sectional studies have revealed that the development of oral microecosystems in early life is influenced and tuned by multiple external factors, including maternal health status, mode of delivery, feeding habits, antibiotics use, etc. The dysbiosis of oral microecology in early life is closely related to the pathogenesis and progression of oral and systemic diseases. Therefore, good oral hygiene habits are of vital importance to the early management of oral microbial diseases and their effective prevention and control. Herein, we summarized the colonization and succession of oral microbiota in early life and further discussed the key external factors that affect early life oral microecosystem, as well as the impact of early life oral microbiota on the host's health at a later stage, intending to help providing new insights into and new strategies for the management of the whole lifecycle oral and systemic health.

Worldwide evidence about infant stunting from a public health perspective: A systematic review

Introduction:

According to the World Health Organization (WHO) global estimates for 2017, 9.6% of children under 5 years old are stunted. Worldwide evidence shows that actions for preventing stunting and catching-up growth are relevant if addressed by all the sectors involved. Therefore, there is a need to identify 'intersectoral actions' to address the risk of stunting during pregnancy and the first 2 years of life.

Objective:

To identify and describe worldwide evidence for prevention, nutritional interventions, and 'intersectoral collaboration' efforts against stunting in infants.

Materials and methods:

We conducted a systematic review in 2019 (PROSPERO CRD42019134431). The search included PubMed, OVID, and Web of Science, as well as WHO and the Food and Agriculture Organization of the United Nations (FAO) official documents and expert recommendations.

Results:

We selected 231 studies: 86.1% described prevention-related factors, 30.7%, nutritional interventions, and 52.8% intersectoral collaboration efforts; 36.4% of the studies were conducted in multiple regions; 61% of the studies described the importance of interventions during pregnancy, 71.9% from birth up to 6 months old, and 84.8% from 6 months up to 2 years old. The most frequent variables described were antenatal care, nutritional counseling for the mother and the newborn, and counseling on micronutrient supplementation.

Conclusions:

Evidence-based understanding of actions geared towards monitoring the risk of stunting-associated factors from pregnancy up to 2 years old is critical.

Iodine as Essential Nutrient during the First 1000 Days of Life

Iodine is an essential micronutrient incorporated into thyroid hormones. Although iodine deficiency can lead to a broad spectrum of disorders throughout life, it is most critical in the early stages of development, as the foetal brain is extremely dependent on iodine supply. During the last two decades, our understanding of thyroid physiology during gestation has substantially improved. Furthermore, thyroid hormone receptors have been identified and characterised in placental and embryonic tissues, allowing us to elucidate the maternal-foetal transfer of thyroid hormones. Experimental studies have demonstrated that the cyto-architecture of the cerebral cortex can be irreversibly disturbed in iodine deficiency causing abnormal neuron migratory patterns which are associated with cognitive impairment in children. In this context, the role of iodine as key factor in the programming of foetal and infant neurodevelopment, needs to be revisited with a special focus on areas of mild to moderate iodine deficiency. The objective of this review is to summarize the available evidence from both animals and human studies, for the effect of iodine deficiency (particularly, of maternal hypothyroxinemia) on brain development and neurological or behavioural disorders, such as lower intelligence quotient (IQ) or attention deficit hyperactivity disorder (ADHD).

Caregiver-infant's feeding behaviours are associated with energy intake of 9-11 month-old infants in rural Ethiopia

Inappropriate complementary feeding, both in quantity and quality, is a major determinant of undernutrition. However, little is known about how infant-caregiver's feeding behaviours affect infants' energy intake. Therefore, the objective of this study was to characterize infant-caregiver feeding behaviours and investigate their association with infants' energy intake. The study involved 106 mother-child pairs recruited from seven randomly selected kebeles of Mecha district, West Gojam, Ethiopia. The feeding styles were assessed through observations of 1-day, in-home, feeding episodes that were videotaped and coded into self-feeding, responsive, active, distracting, and social feeding behaviours. Infants' haemoglobin and anthropometric measurements were taken. The association between feeding behaviour scores and energy intake per meal was investigated. The mean food intake of the infants was very low (11.4 ± 7.0 g/kg body weight per meal) compared to the minimum theoretical gastric capacity (30 g/kg body weight per meal). Infants' haemoglobin concentration was negatively associated with energy intake (ρ = 0.178, p = .03). Infants' responsive and active positive feeding styles were positively associated with energy intakes (ρ = 0.258 and 0.432, p = .004 and p < .001, respectively) as well as caregivers' responsive positive feeding styles (ρ = 0.237, p = .007). Both haemoglobin concentrations and feeding styles were associated with infant's energy intake. Anaemia prevention and control measures should be reinforced. Current nutrition education programmes should give emphasis on ways to effectively incorporate culturally adapted responsive feeding messages in this and similar settings.

Energy and nutrient intake of infants and young children in pastoralist communities of Ethiopia

OBJECTIVE

Nutrient intake from complementary foods often is suboptimal in subsistent farming households of developing countries, but little is known about this in pastoralist communities. The aim of this study was to estimate the energy and nutrient intake of children ages 6 to 23 mo living in pastoralist communities of Ethiopia.

METHOD

As part of the Ethiopian National Food Consumption Survey, 24-h dietary recall data were collected through in-home interviews from a nationally representative sample. In the present study, we report on the feeding characteristics, energy and nutrient intake of infants and young children (ages 6-23 mo) living in pastoralist communities (N = 896) of Ethiopia. Energy and nutrient intakes were estimated and compared with estimated needs from complementary foods. The nutrient density of the complementary diets was compared with desired densities.

RESULTS

About one-third of the children were stunted. Diets were predominantly dairy and cereal-based. The dietary diversity score was low (2 ± 1.2). Consumption of nutrient-dense foods such as animal source foods (other than milk), vitamin A-rich fruits and vegetables was very low. Energy intake from complementary foods were inadequate. Multiple micronutrient deficiencies including thiamin, niacin, iron, zinc, and calcium and in some instances vitamins A and C were observed in young children. The number of micronutrients for which intake was found deficient increased with child's age.

CONCLUSION

Energy and nutrient intakes from complementary foods are inadequate in pastoralist communities of Ethiopia. Interventions that improve knowledge and practice of complementary feeding are needed in this setting.