The association between food environment, diet quality and malnutrition in low- and middle-income adult populations across the rural-Urban gradient in Vietnam

BACKGROUND

Economic reforms and trade liberalisation in Vietnam have transformed the food environment, influencing dietary patterns and malnutrition status. The present study focuses on the relationship between food environments (proximity and density of food outlets) and malnutrition (underweight, overweight, obesity) through diet quality in adult populations across urban, periurban and rural areas of Vietnam.

METHODS

We evaluated food environment by geospatial mapping of food outlets through a transect walk across the "food ecosystem" from rural to urban areas. Diet quality was assessed using the Diet Quality Index - Vietnamese (DQI-V) comprising Variety, Adequacy, Moderation and Balance components. Malnutrition status was determined using body mass index. We performed a mediation analysis utilising mixed effect models to control for neighbourhood clustering effects. Confounders included age, education, income and nutrition knowledge score.

RESULTS

Analysis of data from 595 adult participants (mean ± SD age: 31.2 ± 6.4 years; 50% female) found that longer distance to the nearest food outlet was associated with higher overall DQI-V (β = 2.0; 95% confidence interval = 0.2-3.8; p = 0.036) and the Moderation component (β = 2.6; 95% confidence interval = 1.2-4.0; p = 0.001). Outlet density shows a negative association with the odds of underweight among women (odds ratio = 0.62; 95% confidence interval = 0.37-0.96). However, we did not observe statistically significant relationships between diet quality and malnutrition. Education and nutrition knowledge scores were positively associated with diet diversity, while income was negatively associated with diet moderation.

CONCLUSIONS

The findings of the present study have important implications for nutrition and dietetics practice in Vietnam and globally. It emphasises the need to consider various dimensions of sustainable diets, including economic, health and socio-cultural/political factors. Longer distances to food outlets are associated with higher diet quality, whereas lower food outlet density increases the odds of underweight among women. This poses challenges in balancing modernisation and its adverse effects on sustainable food systems. Socio-economic status consistently correlated with diet quality and malnutrition, necessitating further research to promote healthy diets across socio-economic strata.

The Influence of Factors of Breastfeeding and Food Consumption on Stunting Incidence among Preschool Children in Keerom District, Papua Province, Indonesia

BACKGROUND: Stunting is a nutritional problem due to linear growth failure in children under five, resulting in future health problems. Papua has a prevalence of stunting in children under five of 17.8% in 2018. AIM: This study aimed to analyze the influence of breastfeeding and consumption factors on the incidence of stunting in Keerom District, Papua Province. METHOD: This study was an observational study with a cross-sectional design. The sample in this study was 324 toddlers. Characteristics data and breastfeeding were obtained by interviewing parents. In contrast, data on the consumption of children under five were obtained using the Food Recall. Nutritional status was calculated using the Z-score obtained from measurements of body weight and height of children under five. SEM analysis was used to analyze breastfeeding and consumption factors on children's nutritional status under five. RESULT: The study results based on consumption (r = 0.052) and breastfeeding (r = -0.015) had a weak relationship with stunting incidence. CONCLUSION: There was a significant effect of consumption and breastfeeding factors on the incidence of under-five stunting.

Dietary Diversity and Nutritional Status of Preschool Children in North West Province, South Africa: A Cross Sectional Study

Preschool children consume diets inadequate to meet their macro and micronutrient requirements, which ultimately affect their nutritional status due to lack of dietary diversity. A cross sectional study was conducted to investigate the association between dietary diversity scores (DDS) and the nutritional status of 379 preschool children in North West Province of South Africa. A 24 h qualitative recall by mothers of their children's food consumption was used to calculate DDS based on 12-foods groups following Food and Agriculture Organization protocols. DDS was calculated by counting each of 12-food groups and classified as low (≤4), medium (5-8) and high (9-12). The weight and height of children were measured and height-for-age (HAZ), weight-for-age (WAZ) and BMI-for-age (BAZ) z-scores were calculated based on 2006 WHO standards. Stunting, underweight and thinness were defined as HAZ, WAZ and BAZ < -2SD, respectively. Linear and logistic regression analyses were used to assess the association between DDS and the nutritional indicators. Mean age for children was 4 ± 0.7 years, and the prevalence of stunting (29%), underweight (13%) and thinness (6%) was observed. Mean DDS was 4.39 ± 1.55 out of 12-food groups, with a prevalence of 61% and 39% for low and medium DDS, respectively. Cereals (100%) accounted for the main food group consumed, while fish and other seafood (17%) were the least consumed. Consumption of a diversified diet was associated with lower odds of being stunted [AOR = 0.25, 95%CI: 0.10 to 0.92] among the four-year olds, while in the unadjusted model, 5-year-olds had lower odds of being underweight [OR = -0.32, 95%CI: -0.57 to 0.07]. The findings of this study reinforce the importance of continued nutrition education of mothers, caregivers and preschool staff on the need to ensure consumption of diverse food sources in order to improve the nutritional status of children. Further studies are recommended on the association of DDS with the nutritional status, and factors associated with low dietary diversity among preschool children.

Breastfeeding and child survival from 0 to 5 years in Côte d'Ivoire

BACKGROUND

One of the main objectives of health policy-makers is to promote children's growth, development, and survival. The current research evaluates the impact of breastfeeding on infant survival and highlights the major socio-economic determinants of child survival from 0 to 5 years old in Côte d'Ivoire.

METHODS

This study uses Probit estimation to evaluate the impact of the type of breastfeeding on the survival of children aged from 0 to 5 years old. The main socio-economic determinants of child survival were identified and analyzed. The sample of the study covers 7776 children under 5 years old drawn from the Côte d'Ivoire Demographic Health Surveys and the Multiple Indicators cluster survey of 2012.

RESULTS

A child is more likely to survive when immediate exclusive breastfeeding was practiced for up to 6 months. The probability of survival increases significantly when the mother lives in a healthy environment, when she has at least a primary school education, and when she plays a leading role in caring for the children. Likewise, when she better controls the market of some breast milk supplement and she chooses the best milk formula to complete feeding for her baby, the child's chances of survival increase significantly.

CONCLUSION

Health policy-makers must strengthen programs to promote exclusive breastfeeding up to 6 months through social campaigns. It should also strengthen the capacity of health workers (midwives, nurses, doctors, etc.) to better guide and provide training to mothers and young women about childbearing age to allow them to practice exclusive breastfeeding for up to 6 months. It is only after 6 months that they have to complete infant feeding by providing some semi-solid food rich in vitamins, proteins, and minerals. Taking into account the time constraint when they are engaged in economic activity, they must choose the best formula milk to supplement breastfeeding. It is also important to educate women to improve hygiene in their housing, in their neighborhood and in their community in order to promote the welfare and health of their children.