Process Evaluation of a Large-Scale Community-Based Nutrition Program in Malawi

Behaviour change interventions improve maternal and child nutrition in sub-Saharan Africa: A systematic review

Evidence that nutrition-specific and nutrition-sensitive interventions can improve maternal and child nutrition status in sub-Saharan Africa is inconclusive. Using behaviour change theory and techniques in intervention design may increase effectiveness and make outcomes more predictable. This systematic review aimed to determine whether interventions that included behaviour change functions were effective. Six databases were searched systematically, using MeSH and free-text terms, for articles describing nutrition-specific and nutrition-sensitive behaviour change interventions published in English until January 2022. Titles, abstracts and full-text papers were double-screened. Data extraction and quality assessments followed Centre for Reviews and Dissemination guidelines. Behaviour change functions of interventions were mapped onto the COM-B model and Behaviour Change Wheel. PROSPERO registered (135054). The search yielded 1193 articles: 79 articles met inclusion criteria, ranging from low (n = 30) to high (n = 11) risk of bias. Many that applied behaviour change theory, communication or counselling resulted in significant improvements in infant stunting and wasting, household dietary intake and maternal psychosocial measures. Interventions with >2 behaviour change functions (including persuasion, incentivisation, environmental restructuring) were the most effective. We recommend incorporating behaviour change functions in nutrition interventions to improve maternal and child outcomes, specifically drawing on the Behaviour Change Wheel, COM-B model (SORT B recommendation). To enhance the designs of these interventions, and ultimately improve the nutritional and psychosocial outcomes for mothers and infants in sub-Saharan Africa, collaborations are recommended between behaviour change and nutrition experts, intervention designers, policy makers and commissioners to fund and roll-out multicomponent behaviour change interventions.

Beneficiary and Local Stakeholder Participation in Community-Based Nutrition Interventions

Beneficiary and local stakeholder participation is an essential element to the success of community-based nutrition interventions. We sought to define active participation and review the available evidence on beneficiary and local stakeholder participation in community-based nutrition interventions in Africa. From reviewing the literature, we provide a reflective assessment on the process and findings. Participation falls on a continuum of community involvement from passive (no real involvement) to empowerment and community ownership (full active involvement). However, we found a clear gap in the research on defining active participation and identifying what constitutes active participation on behalf of beneficiaries and local stakeholders. However, progress was found; evidence included the use of participatory methods to engage beneficiaries and local stakeholders in the assessment and design phase. Beneficiary and local stakeholder participation in delivering interventions has moved forward with quantitative measures from process evaluation and implementation science. Research has started on the extent of beneficiary engagement (as recipients) and connecting this to outcomes. Evaluation has benefited from qualitative inquiry with insights from participants on engagement itself, and the barriers and facilitators to engagement. Yet questions remain in each study phase around defining and quantifying active participation and in understanding the personal, social, and motivational elements of active participation. We offer a simple framework to stimulate thought and commitment to research on participation in community-based nutrition interventions.

Adaptive Implementation of a Community Nutrition and Asset Transfer Program during the COVID-19 Pandemic in Rural Bangladesh

Background

Reduced health and nutrition services as a result of coronavirus disease 2019 (COVID-19) measures endanger children's well-being. The Bangladesh Rajshahi Division of Maternal and Child Nutrition (BRDMCN; 2018-2020) involving social behavior change communication (SBCC) and an economic development (ED) of asset transfer was implemented.

Objectives

This study describes how the implementation modality of the BRDMCN was adapted, and changes in the program's short/intermediate-term outcomes during the COVID-19 pandemic compared with pre-pandemic.

Methods

The following evaluation components were assessed: 1) program fidelity, 2) program reach, 3) program acceptance, 4) perceived influence of COVID-19, and 5) short-term outcomes over the 3 y. We compared the first 2 y ("pre-COVID-19," from April 2018 through December 2019) and the final year ("during COVID-19," from January to December 2020) for all components except for (3) and (4). Data were collected through multiple sources: reviews of program annual progress reports, monitoring records of SBCC and ED programs, and cohort surveys (n = 1094).

Results

The percentage dose delivery of activities decreased from 66.7-118% at pre-COVID-19 to 0-90% during COVID-19. The SBCC programs were altered to reduce the frequency of activities as well as the number of participants per session. The ED program involving large group meetings was modified to include within-member meetings, individual visits of community facilitators, or virtual discussions. Production activity using received assets continued during the pandemic, with no significant reduction compared with pre-COVID-19. The percentage of children recovering from underweight after 30 d of a Positive deviance/Hearth (PD/Hearth) session, a component of the SBCC program, remained constant at 16.5-20.3 percentage points before and during the COVID-19 pandemic.

Conclusions

Program activities were scaled back and changed due to the pandemic. The BRDMCN maintained asset management and the degree of short-term outcomes over the course of a 3-y project. Further study is required to determine whether adaptive program management would achieve the long-term expected impact at a population level.

A longitudinal impact evaluation of a comprehensive nutrition program for reducing stunting among children aged 6-23 months in rural Malawi

BACKGROUND

Growth failure in sub-Saharan Africa leads to a high prevalence of child stunting starting in infancy, and is attributed to dietary inadequacy, poor hygiene, and morbidity.

OBJECTIVES

To evaluate the impact of a program in Malawi providing a lipid-based nutrient supplement to infants from 6-23 months of age, accompanied by a social and behavior change communication intervention to optimize caregiver feeding and handwashing practices.

METHODS

This impact evaluation was a quasi-experimental, longitudinal study with 1 program and 1 comparison district. Infants were enrolled at 6-7 months of age. Anthropometry, child morbidity, and caregiver feeding and handwashing practices were assessed at enrollment and at 6, 12, and 18 month follow-ups (ages 6, 12, 18, and 24 months, respectively). Changes in the length-for-age z-score (LAZ), weight-for-length z-score (WLZ), and midupper arm circumference (MUAC) were compared using mixed-effects models. Program impacts on child stunting (LAZ < -2), wasting (WLZ < -2), morbidity, and feeding and handwashing practices were estimated using difference-in-differences.

RESULTS

We enrolled 367 infants across the program (n = 176) and comparison (n = 191) districts. The combined prevalences of stunting and wasting at enrollment were 42.1% and 1.4%, respectively, and did not differ by district. At enrollment, the prevalence of severe stunting (LAZ < -3) was higher in the program (15.5%) versus comparison (7.6%) district (P = 0.02), with corresponding lower LAZ scores (-1.9 vs. -1.7, respectively; P = 0.12). Growth velocities favored program children, such that LAZ, WLZ, and MUAC measurements increased by +0.12/y (P = 0.06), +0.12/y (P = 0.04), and +0.24 cm/y (P < 0.001), respectively, leading to comparable LAZ distributions across districts by 24 months of age. Program exposure was associated with 19.8 percentage point (pp) and 13.8 pp reductions in the prevalences of malaria (P = 0.001) and fever (P = 0.02), respectively, at the 18-month follow-up. Improvements of 20 pp (P < 0.01) in minimum dietary diversity and minimum acceptable diet were seen in the program versus comparison district at 18 months of follow-up.

CONCLUSIONS

The program improved child growth patterns, with benefits to health and diet apparent after 18 months of exposure. This trial was registered at clinicaltrials.gov as NCT02985359.

Impact Evaluation of a Comprehensive Nutrition Program for Reducing Stunting in Children Aged 6-23 Months in Rural Malawi

BACKGROUND

The prevalence of stunting in central rural Malawi is ∼50%, which prompted a multipronged nutrition program in 1 district from 2014 to 2016. The program distributed a daily, fortified, small-quantity lipid-based nutritional supplement, providing 110 kcal and 2.6 g of protein to children aged 6-23 mo, and behavior change messages around optimal infant and young child feeding (IYCF) and water, sanitation, and hygiene.

OBJECTIVES

Our objective was to perform an impact evaluation of the program using a neighboring district as comparison.

METHODS

Using a quasi-experimental study design, with cross-sectional baseline (January-March, 2014; n = 2404) and endline (January-March, 2017; n = 2453) surveys, we evaluated the program's impact using a neighboring district as comparison. Impact on stunting was estimated using propensity score weighted difference-in-differences regression analyses to account for baseline differences between districts.

RESULTS

No differences in mean length-for-age z-score or prevalence of stunting were found at endline. However, mean weight, weight-for-length z-score, and mid-upper arm circumference were higher at endline by 150 g, 0.22, and 0.19 cm, respectively, in the program compared with the comparison district (all P < 0.05). Weekly reports of high fever and malaria were also lower by 6.4 and 4.7 percentage points, respectively, in the program compared with the comparison district (both P < 0.05). There was no impact on anemia. Children's dietary diversity score improved by 0.17, and caregivers' infant and young child feeding and hand-washing practices improved by 8-11% in the program compared with the comparison district (all P < 0.05).

CONCLUSIONS

An impact evaluation of a comprehensive nutrition program in rural Malawi demonstrated benefit for child ponderal growth and health, improved maternal IYCF and hand-washing practices, but a reduction in stunting prevalence was not observed.