Maternal and Child Nutrition最新文献

Low- and middle-income countries shoulder the greatest burden of stunting and anaemia in children. This calls for prompt and effective intervention measures, while the contributing factors are not fully understood. This study evaluates determinants spanning from individual-, household- and community levels including agroecology and antinutrients as unique sets of predictors. Primary data were collected from 660 rural households representing the midland (ML), highland, and upper highland (UHL) agroecological zones from northern Ethiopia. The study relates several predictors to stunting and anaemia in children aged 6–23 months. We found 49.1% and 49.7% of children were stunted and anaemic, respectively. Children living in the ML are approximately twice more likely to be stunted adjusted odds ratio (AOR: 1.869; 95% CI: 1.147–3.043) than in the UHL. The risk of stunting increases by 16.3% and 41.9% for every unit increase in phytate-to-zinc and phytate-to-iron molar ratios, respectively. A 10% increase in mean aggregated crop yield was observed to reduce the likelihood of stunting occurrence by 13.6%. Households lacking non-farm income-generating opportunities, travel longer time to access the marketplace and poor health service utilisation were associated with increased risk of stunting. Low diversity of child's diet, age of the child (18–23 months) and mothers at a younger age are significantly associated with stunting. Risk of anaemia in children is high amongst households with unimproved water, sanitation, and hygiene practices, younger age (6–11 months) and mostly occurs amongst boys. Children in the ML had a 55% reduced risk of being anaemic (AOR: 0.446; 95% CI: 0.273–0.728) as compared to the UHL. Therefore, the influence of these factors should be considered to tailor strategies for reducing undernutrition in children of 6–23 months in rural Ethiopia. Interventions should go beyond the administrative boundaries into targeting agroecological variation.

Alive & Thrive (A&T) provides strategic technical assistance (TA) to develop effective policies; improve maternal, infant, and young child nutrition (MIYCN) programme design and implementation and enhance system capacity to sustain quality MIYCN service delivery at scale. A qualitative assessment was conducted using document review and stakeholder interviews (n = 79) to describe a selection of A&T's TA in six countries and systematically assess the contextual and TA process-related factors that influenced the results achieved and document the lessons learned about MIYCN TA design and implementation. To facilitate the selection of different types of TA, we classified TA into two levels of stakeholder engagement and intensity. Under the Technical Advisor TA category, we assessed A&T's support to strengthen national policy formulation, monitoring, and implementation of the International Code of Marketing of Breast-milk Substitutes. For Capacity Development TA, we assessed A&T support to scale-up maternal nutrition services and to increase strategic use of data. Factors important for TA provision included identifying and engaging with the right people, using evidence to support advocacy and decision-making, using multiple ways to strengthen capacity, developing packages of tools to support programme scale-up, and reinforcing feedback mechanisms to improve service provision and data quality. Challenges included shifts in the political context, poorly functioning health systems, and limited resources to replicate or sustain the progress made. Continued investment in evidence-based and practical TA that strengthens the institutionalization of nutrition across all stakeholders-including government, medical associations, civil society and development partners-is essential. Future TA must support governments to strengthen system capacity for nutrition, including financial and human resource gaps that hamper full scale-up.

Optimal maternal nutrition, including adequate intake and status of essential micronutrients, is important for the health of women and developing infants. Currently, the World Health Organization (WHO) Antenatal care recommendations for a positive pregnancy experience recommend daily iron and folic acid (IFA) supplementation as the standard of care. The use of multiple micronutrient supplements (MMS) is recommended in the context of rigorous research as more evidence was needed regarding the impact of switching from IFA supplements to MMS, including evaluation of critical clinical maternal and perinatal outcomes, acceptability, feasibility, sustainability, equity and cost-effectiveness. WHO convened a technical consultation of key stakeholders to discuss research priorities with the objective of providing guidance and clarity to donors, implementers and researchers about this recommendation. The overarching principles of the research agenda include the use of clinical indicators and impact measures that are applicable across studies and settings and the inclusion of outcomes that are important to women. Future studies should consider using standardized protocols based on current best practices to measure critical outcomes such as gestational age (GA) and birthweight (BW) in studies. As GA and BW are influenced by multiple factors, more research is needed to understand the biological impact pathways, and how initiation and considerations for timing of MMS influence these outcomes. A set of core clinical indicators was agreed upon during the technical consultation. For implementation research, the Evidence-to-Decision framework was used as a resource for discussing components of implementation research. The implementation research questions, key indicators and performance measures will depend on country-specific context and bottlenecks that require further research and improved solutions to enable the successful implementation of iron-containing supplements.

We examined the association between low-calorie sweeteners (LCS) consumption during preconception, pregnancy, and breastfeeding and child health outcomes. A systematic search of electronic databases in PubMed, Embase, Cumulated Index to Nursing and Allied Health Literature, the Cochrane Library, Scopus, Web of Science, PsycINFO, ProQuest Health and Medical, ClinicalTrials.gov, and Google Scholar was conducted up to 21 September 2023. A random effects model with restricted maximum likelihood estimation was used for the meta-analysis. Seventeen eligible studies were included. The standardised mean difference (SMD) and 95% confidence interval (CI) in birth weight between those who frequently consumed LCS (≥1 serve/day) during pregnancy and those who did not consume LCS was 0.04 (0.00, 0.08) (four cohort studies). Any LCS consumption during pregnancy compared with no consumption was not associated with birth weight [SMD (95% CI) = 0.03 (−0.03, 0.08)] (four cohort studies). Any LCS consumption during pregnancy was not associated with body mass index z-scores. The weighted mean difference (95% CI) was 0.00 (−0.05, 0.06) at birth, 0.06 (−0.29, 0.40) at 6 months, −0.04 (−0.19, 0.10) at 1 year, 0.00 (−0.16, 0.17) at 3 years, and 0.10 (−0.15, 0.34) at 7 years of the child age, compared with no intake (five cohort studies). The odds of being overweight at 1 year among children exposed to LCS during pregnancy was 1.19 (OR [95% CI]: 1.19 [0.81, 1.58]) compared with unexposed children (two cohort studies). The effect sizes were not precise for all the outcomes as the 95% CI indicated the effect estimates could range from small protective to a higher risk. The effect of LCS consumption on child behaviour and cognition was inconsistent. There is not enough evidence to confirm LCS consumption during pregnancy affects birth weight and risk of overweight in children. However, frequent consumption increased birth weight and the risk of overweight at different ages, though the effects were imprecise. More robust research evidence is required as the quality of evidence is low.

The International Code of Marketing of Breast-milk Substitutes and subsequent resolutions (the Code) was adopted to address increases in mortality and morbidity resulting from the practices of the breast-milk substitute (BMS) industry. The lack of success in ensuring company compliance with the Code has prompted advocates to consider engaging with investors to shape the governance of BMS companies. To support these efforts, this paper aimed to identify prominent investors in the global BMS industry and explore their Code-related policies and practices. Using multiple methods and data sources, we developed a novel approach to identify and rank investors in the world's leading publicly listed BMS companies. We also examined the policies and voting behaviour of a sample of investors using publicly accessible materials from 2020 to 2022. We found that a small number of large investors, led by BlackRock and Vanguard, hold a substantial share in the global BMS industry. Of the top-10 ranked investors, only Norway's Government Pension Fund (NBIM) reported policy information relating specifically to BMS marketing. Most of these large investors also opposed the sample of public health-related shareholder proposals analysed. In addition, we identified several investors that have reported engaging with BMS companies on Code-related issues, including NBIM, Pictet, and UBS, along with several potential investor targets for future advocacy efforts, including some North American public pension funds. The inclusion of Code-related issues as part of broader policies, disclosures and regulations related to environmental, social and governance oriented investment warrants increased attention.

Calcium supplementation in pregnancy is recommended in contexts with low dietary calcium intake to reduce the risk of pre-eclampsia and its complications. The World Health Organisation suggested high-dose calcium supplementation (1500–2000 mg/day), divided into three doses and taken at different times from daily iron-folic supplements. We conducted a mixed methods evaluation study to assess experiences, acceptability and barriers to high-dose calcium supplementation from the perspectives of pregnant women and antenatal health care providers at two public health facilities in Dar es Salaam, Tanzania. Descriptive statistics and thematic analysis were used to characterise acceptability, barriers and overall experiences of using high-dose calcium supplementation. Pregnant women in the cohort were aged 19–41 years, with 32.4% being primiparous. The proportion of pregnant women who liked calcium supplements ‘a lot’ decreased from 50.2% at the first visit to 31.8% at the last antenatal follow-up visit. Adherence was 71.3% (interquartile range: 50.5%, 89.3%), with only 24.0% of the participants taking 90% or more of the required supplements. Although participants expressed positive attitudes towards using calcium supplements, they also voiced concerns about the large size, side effects, the potential to forget and the burden of taking calcium supplements three times per day. Antenatal health care providers also affirmed the high burden of taking calcium supplements in addition to iron-folic acid supplements. Participants expressed the acceptability of using calcium supplements during pregnancy, but adherence to three doses per day posed challenges to pregnant women. Reducing the number of calcium supplement doses per day may improve adherence.

A community-based, cluster non-randomized controlled trial was conducted in Kurram district, Pakistan between January 2018 to December 2020. Age-appropriate lipid-based nutrient supplements and health education (sessions conducted in the households) were given to pregnant women and their born children (6–23 months) in the intervention arm (n = 40 clusters) versus health education only in the control arm (n = 40 clusters) to evaluate its effect on child development. The first and second developmental assessments were completed at ~24 months (n = 689) and ~32 months (n = 608), respectively, using the Caregiver-Reported Early Development Instrument Long form. The overall and domain-specific (motor, language, cognitive and socio-emotional) scores were computed with higher scores indicating better child development. Higher development scores, including overall (β = 0.40, 95% confidence interval [CI]: 0.14, 0.65; p = 0.002), cognitive (β = 0.27, 95% CI: 0.10, 0.45; p = 0.002), motor (β = 0.39, 95% CI: 0.22, 0.56; p < 0.001) and language (β = 0.33, 95% CI: 0.14, 0.51; p = 0.001) were reported for children who received the intervention compared to the control arm at first developmental assessment. However, the effect was not sustained after the discontinuation of the intervention. The LNS received by the mothers (during pregnancy and first 6 months after delivery) and by children during 6–23 months of age was beneficial for the children. The trial is registered in the International Standard Randomised Controlled Trial Number Registry (ID: ISRCTN94319790) on December 11, 2017.

Food security during pregnancy is crucial for safeguarding the health of expectant mothers and optimizing prenatal outcomes. Food insecurity can manifest in varying degrees, ranging from moderate disruptions to the quality and diversity of diet to severe cases that disrupt dietary patterns and reduce overall food intake. Limited information exists regarding food security among pregnant women in Iran. Therefore, this qualitative study aims to investigate food security during pregnancy from the perspectives of pregnant women (n = 17) and experts in food security (n = 6). Data were collected through purposeful sampling and 23 semi-structured interviews. The data analysis process occurred concurrently with data collection, employing a conventional content analysis approach. The findings underwent rigorous evaluation based on credibility, confirmability, dependability, transferability and authenticity. The results revealed that access to quality foods in pregnancy depends on the sustainability of food resources, economic access to food, the family's food budget, pregnant women's utilization of food due to pregnancy conditions, their nutritional literacy and cultural practices. Pregnant women employ various strategies to cope with food insecurity and require social and governmental support to manage it effectively. Therefore, it is suggested that health care authorities initially assess the level of food security among pregnant women and subsequently, through equitable food distribution, reform culture and increase food literacy, providing practical and informative educational programmes, and structured support, improve their food security.

Women of reproductive age are particularly vulnerable to low-quality diets due to their higher micronutrients needs. The minimum dietary diversity for women (MDDW) is a proxy for micronutrient adequacy in this group of women. Its relationship with other aspects that lead to malnutrition is not fully elucidated and depends on the context. In this study, we assessed the prevalence of MDDW among women of a rural area in Chad and its association with socioeconomical, agricultural, dietary and food security data. A cross-sectional study was conducted. Following a multistage cluster sampling, 984 women of reproductive age were randomly selected and interviewed in March 2019. We obtained food consumption data through unquantified 24 h recalls and computed MDDW as consuming at least five out of 10 predefined food groups. We constructed a Food Production Diversity Score (FPDS) with crop and livestock information. We obtained multivariable logistic regression models including different covariates. MDDW was achieved by only 33% of women in the sample. In our final model, we identified a significant association of MDDW with the FPDS and gathering of wild plants. Women in households with the highest FPDS had 70% more chances of achieving MDDW than those with the lowest FPDS. Gathering wild plants doubled these chances. Areas of cultivated land, Water, Sanitation and Hygiene resources, and a high level of food security, measured with the Household Food Insecurity Access Scale, were also significantly related to the achievement of MDDW. This illustrates the importance of nutrition-sensitive policies, also considering biodiversity and food production diversification.