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Volume 13, Issue 1 (2025)
Health Educ Health Promot 2025, 13(1): 21-30 |
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Received: 2024/12/5 | Accepted: 2025/01/8 | Published: 2025/01/26
Received: 2024/12/5 | Accepted: 2025/01/8 | Published: 2025/01/26
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Raflizar R, Damris M, Johari A, Herlambang H. Community-Based Educational Approaches to Stunting Prevention. Health Educ Health Promot 2025; 13 (1) :21-30
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1- Department of Postgraduate, Faculty of Mathematic & Science Program, Jambi University, Jambi, Indonesia
2- Department of Chemistry, Faculty of Science & Technology, Jambi University, Jambi, Indonesia
3- Department of Biology Education, Faculty of Mathematic & Science Program, Jambi University, Jambi, Indonesia
4- Department of Obstetrics and Gynecology, Faculty of Medicine & Health Sciences, Jambi University, Jambi, Indonesia
2- Department of Chemistry, Faculty of Science & Technology, Jambi University, Jambi, Indonesia
3- Department of Biology Education, Faculty of Mathematic & Science Program, Jambi University, Jambi, Indonesia
4- Department of Obstetrics and Gynecology, Faculty of Medicine & Health Sciences, Jambi University, Jambi, Indonesia
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Introduction
Impaired growth and development caused by chronic malnutrition is known as stunting, which is a serious public health issue with long-term effects on both individuals and nations [1, 2]. Millions of children worldwide suffer from this condition, primarily in low- and middle-income countries (LMICs), where access to nutritious food, medical care, and sanitation facilities is limited [3-5]. The World Health Organization (WHO) states that early childhood stunting is associated with permanent cognitive impairments, poor academic performance, decreased adult productivity, and an increased risk of chronic illnesses [6]. Addressing stunting is essential for achieving global objectives such as the sustainable development goals (SDGs), particularly SDG 2.2, which aims to eradicate all forms of malnutrition by 2030 [7, 8].
Despite significant international efforts, reductions in stunting have not been uniformly achieved. The UNICEF/WHO/World Bank Joint Child Malnutrition Estimates indicate that while the global prevalence of stunting decreased from 33.1% in 2000 to 22.0% in 2020, regions such as South Asia and Sub-Saharan Africa continue to report stunting rates above 30% [9]. In Indonesia, the Studi Status Gizi Indonesia (SSGI) 2022 reported a national stunting prevalence of 21.6%, falling short of the government’s target to reduce it to 14% by 2024. These statistics underscore the urgent need for effective, scalable, and context-specific interventions [10].
One promising approach to stunting prevention is community-based education. Unlike top-down strategies, community-based education empowers local communities to become active participants in addressing stunting [11, 12]. These programs often incorporate culturally relevant messages, involve local stakeholders, and integrate educational sessions on maternal and child nutrition, hygiene, breastfeeding practices, and complementary feeding. The participatory nature of these approaches not only improves knowledge but also fosters behavior change, enabling sustainable improvements in child health outcomes [9, 12].
Several systematic reviews have explored interventions for stunting prevention, providing valuable insights into global efforts. For instance, a review by Bhutta et al. highlights the efficacy of nutrition-specific interventions, such as micronutrient supplementation and exclusive breastfeeding (EBF) promotion, in reducing stunting [13, 14]. More recently, a meta-analysis by Lassi et al. [15] emphasizes the importance of integrating nutrition-sensitive approaches, such as poverty alleviation and education, to address the underlying determinants of stunting. However, these reviews often focus on broader interventions and do not specifically analyze the role of community-based education.
Another notable review by Bhutta et al. [16] synthesizes evidence on stunting reduction policies globally but lacks detailed insights into localized, community-driven educational programs. Similarly, systematic reviews of maternal and child health interventions have acknowledged the role of community health workers but often do not isolate educational components specifically tailored to stunting prevention [17]. This gap underscores the need for a focused examination of community-based education as both a standalone and synergistic strategy.
The present systematic review aimed to address this gap by synthesizing evidence from experimental studies on community-based education interventions targeting stunting prevention. It aimed to analyze their design, implementation, and effectiveness in diverse settings. By doing so, this review will contribute to understanding best practices, contextual factors influencing success, and critical areas for future research. This evidence is vital for policymakers, healthcare practitioners, and community leaders striving to develop sustainable and culturally sensitive strategies to combat stunting at the grassroots level. This review not only builds on previous findings but also adds specificity by narrowing its focus to community-based education approaches. By examining this critical aspect, the study aimed to provide actionable insights to bridge the gap between knowledge and practice in stunting prevention, ultimately contributing to healthier and more equitable communities.
Information and Methods
This systematic review was conducted in compliance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) 2020 criteria to maintain openness and methodological rigor [18].
Eligibility criteria
The eligibility criteria were established using the PICOS framework (Table 1).
Table 1. PICOS statement
![src=./files/hehp/images/HTML_Publish/78430/1.png]()
Information sources
To ensure comprehensive coverage, multiple sources of information were utilized. The electronic databases searched included PubMed, MEDLINE, Embase, Cochrane Library, Scopus, Web of Science, and PsycINFO. Grey literature was explored through platforms, such as ProQuest Dissertations and Theses, WHO IRIS, Google Scholar, and reports from local ministries of health and international organizations, like UNICEF and FAO. Manual screening of references from included studies and relevant reviews was also conducted. The search encompassed studies published from the inception of the databases to December 2024.
Search strategy
For each database, a customized search strategy was created that combined free-text terms with controlled vocabulary, such as MeSH terms for PubMed and Emtree terms for Embase. To ensure the accurate retrieval of pertinent papers, the search was refined using Boolean operators and filters. Table 2 contains the full search strings for each database.
Table 2. Search terms in the databases
![src=./files/hehp/images/HTML_Publish/78430/2.png]()
Study selection
Duplicate results were eliminated after importing all search results into reference management software. Two reviewers independently examined abstracts and titles to identify papers that met the inclusion criteria. Full-text publications of eligible studies were obtained and further evaluated for inclusion. A third reviewer was consulted to resolve any disputes between the reviewers. A PRISMA flow diagram was used to document the selection process.
Data extraction
A standardized form, which was piloted and refined for this evaluation, was utilized to extract data. Extracted information included study characteristics, such as author, year, country, and design; population details including sample size; intervention specifics covering duration, content, and mode of delivery; comparator group details; outcomes measured, including primary and secondary outcomes; and key findings. Information on funding sources and potential conflicts of interest was also collected. Two reviewers independently extracted the data, and disagreements were resolved through discussion.
Risk of bias assessment
Validated instruments were employed to assess the risk of bias in the included studies. Aspects such as randomization, departures from planned interventions, missing data, outcome assessment, and reporting bias were evaluated for RCTs using the Cochrane Risk of Bias 2 (RoB 2) methodology. For quasi-experimental studies, confounding, selection bias, and deviations from intended interventions were assessed using the ROBINS-I (risk of bias in non-randomized studies of interventions) tool. Two reviewers conducted the assessments independently, and any disputes were resolved through discussion or by consulting a third reviewer.
Data synthesis
All included studies underwent a narrative synthesis with an emphasis on the features, methods, and results of the interventions.
Findings
Database searches yielded a total of 858 publications, and a manual review of reference lists revealed no additional research. After eliminating 553 duplicates and irrelevant records, 305 studies were screened for titles and abstracts. Nineteen of these studies were selected for full-text review after 286 were disqualified for failing to meet the eligibility criteria. Following a comprehensive review, 17 studies remained for inclusion after nine were disqualified due to factors, such as the lack of a community-based educational component or irrelevant participant categories. The PRISMA flow diagram illustrates the study selection process (Figure 1).
![src=./files/hehp/images/HTML_Publish/78430/f1.png]()
Figure 1. PRISMA flowchart for study selection
Characteristics of the studies included
Seventeen studies from diverse LMICs, including Indonesia (n=8), Kenya (n=2), Bangladesh (n=4), Afghanistan (n=1), China (n=1), and Peru (n=1), were included (Table 3). The studies employed various designs, with randomized controlled trials (RCTs, n=10) and quasi-experimental designs (n=7). Sample sizes ranged from small, localized interventions (40 participants) to large-scale community-based programs (over 2,000 participants). The majority of the studies targeted caregivers, mothers, and pregnant women, focusing on improving nutrition-related practices to prevent stunting.
The duration of the interventions varied, from single sessions lasting 90 minutes to sustained multi-year programs. Delivery methods included home visits, group workshops, counseling sessions, mobile phone support, and digital platforms, often tailored to the cultural and contextual needs of the target population. The primary outcomes measured were improvements in height-for-age z-scores (HAZ) and reductions in stunting prevalence, while secondary outcomes included changes in knowledge, attitudes, and practices (KAP) related to maternal and child nutrition, hygiene, and feeding behaviors.
Table 3. Characteristics of studies included
![src=./files/hehp/images/HTML_Publish/78430/3-1.png]()
![src=./files/hehp/images/HTML_Publish/78430/3-2.png]()
![src=./files/hehp/images/HTML_Publish/78430/3-3.png]()
Risk of bias assessment
The quality of the included studies was evaluated using the ROBINS-I tool for quasi-experimental studies and the Cochrane RoB 2 tool for RCTs. Among the RCTs, six were deemed to be at low risk, while the remaining four raised some concerns due to incomplete blinding or issues with outcome data reporting. The quasi-experimental studies generally exhibited a moderate risk of bias, with common challenges including confounding variables, deviations from intended interventions, and reliance on self-reported outcomes (Figures 2 and 3).
![src=./files/hehp/images/HTML_Publish/78430/f2.png]()
Figure 2. Risk of bias visualization of randomized studies
![src=./files/hehp/images/HTML_Publish/78430/f3.png]()
Figure 3. Risk of bias visualization of non-randomized studies
Educational content delivered
All 17 studies incorporated community-based educational elements aimed at improving maternal and child nutrition behaviors.
Breastfeeding promotion: Twelve studies included EBF promotion, emphasizing early initiation, proper techniques, and the benefits of continued breastfeeding up to 24 months. For instance, mobile phone support in Bangladesh significantly increased EBF adherence rates (p<0.001), while a home-based program in Kenya led to a 25% improvement in EBF practices among urban mothers.
Complementary feeding guidance: Fourteen studies addressed complementary feeding practices, focusing on dietary diversity, meal frequency, and responsive feeding. Practical demonstrations, such as cooking classes in Indonesia, showed significant improvements in caregivers’ ability to prepare nutrient-rich meals, resulting in better dietary diversity scores (p<0.05).
Hygiene and sanitation: Nine studies integrated hygiene education, highlighting the importance of handwashing, clean food preparation, and sanitation to prevent infections that exacerbate malnutrition. A year-long intervention in Afghanistan reported a 40% improvement in hygiene practices among caregivers.
Behavioral change communication (BCC): Ten studies incorporated BCC strategies to modify caregiver attitudes and practices. A program in Bangladesh that used motivational messaging through WhatsApp enhanced maternal confidence and adherence to nutritional guidelines, improving complementary feeding practices (p<0.0001).
Delivery methods and intervention duration
Home visits: Utilized in six studies, home visits provided tailored counseling and direct support. For example, Kenyan community health workers conducting monthly home visits significantly improved exclusive breastfeeding rates and maternal nutritional literacy.
Group workshops and practical demonstrations: Five studies emphasized interactive learning, such as cooking classes and hygiene demonstrations. In Indonesia, group sessions led to a 20% increase in dietary diversity awareness among caregivers.
Digital Tools: Two studies used mobile apps and messaging platforms to deliver education, demonstrating significant behavioral improvements while reducing logistical barriers.
Duration
Intervention duration emerged as a critical factor influencing outcomes. Longer programs (12-24 months) consistently demonstrated greater effectiveness in reducing stunting prevalence and sustaining behavioral changes. For example, a two-year program in Afghanistan that combined educational sessions with nutritional supplementation reduced stunting prevalence by over 10% (p<0.001). Conversely, shorter interventions (e.g., a two-week online education program in Indonesia) were effective in raising awareness but had limited impact on long-term outcomes.
Impact on nutritional and behavioral outcomes
Primary outcomes: Improvements in HAZ were reported in 11 studies. Long-term interventions, such as an 18-month program in Peru, achieved substantial gains in child growth, with mean HAZ scores improving by 0.5 standard deviations (p<0.01). Similarly, a multi-year initiative in China observed a significant reduction in stunting prevalence, attributed to dietary counseling and complementary food provision (p<0.0001).
Secondary outcomes: Changes in caregiver KAP were observed in 15 studies. Enhanced dietary diversity scores, increased exclusive breastfeeding rates, and improved hygiene practices were notable achievements. A study in Bangladesh using mobile apps has reported a 40% increase in maternal perceptions and practices related to stunting prevention. Behavioral improvements are particularly pronounced in programs that employ culturally relevant materials and community-driven approaches.
Contextual and cultural adaptations
Cultural relevance was a key success factor in most studies. Programs that incorporated local foods, traditional recipes, and culturally familiar communication styles were more effective in engaging participants. For example, in Indonesia, community health cadres delivered educational sessions in local dialects, which increased caregiver participation and adherence.
Barriers and challenges in implementation
Logistical constraints: Challenges, such as limited resources, caregiver attendance, and time constraints impacted program effectiveness in six studies.
Scalability: While long-term, high-frequency programs were more effective, they posed challenges for scaling up in resource-constrained settings.
Caregiver resistance: Cultural norms and misconceptions occasionally hindered the adoption of recommended practices, emphasizing the need for culturally sensitive messaging.
Sustainability of educational outcomes
Few studies (n=3) assessed the long-term sustainability of outcomes. While initial improvements in KAP and growth indicators were promising, they often diminished without continued reinforcement. For example, a follow-up in Peru six months after the intervention showed retained dietary practices, but the gains in stunting reduction were less sustained.
Discussion
This study aimed to assess the effectiveness of community-based educational interventions in preventing stunting. Evidence from 17 studies assessing the efficacy of community-based educational interventions in preventing stunting in LMICs is compiled in this systematic review. The findings underscore the critical role of culturally tailored, participatory educational programs in improving child growth outcomes and related maternal and caregiver behaviors. This discussion integrates insights from the reviewed studies with previous research, highlighting both alignments and contrasts to provide a nuanced understanding of their impact and limitations.
By improving HAZ and facilitating positive changes in KAP related to nutrition and hygiene, the review demonstrated that community-based educational interventions significantly contribute to the prevention of stunting. The observed improvements align with Bhutta et al. [16], demonstrating that nutrition education enhances dietary diversity and child growth outcomes when delivered through community-based approaches [13].
Interventions targeting EBF consistently showed strong outcomes. Studies in Bangladesh, Kenya, and Indonesia have highlighted substantial increases in EBF rates, reflecting the efficacy of BCC strategies. These findings mirror those of Kimani-Murage et al. [24], reporting significant improvements in breastfeeding following community-based interventions in urban Kenyan settlements [24].
In contrast, interventions of shorter duration or those limited to one-off sessions demonstrated less impact on stunting
Impaired growth and development caused by chronic malnutrition is known as stunting, which is a serious public health issue with long-term effects on both individuals and nations [1, 2]. Millions of children worldwide suffer from this condition, primarily in low- and middle-income countries (LMICs), where access to nutritious food, medical care, and sanitation facilities is limited [3-5]. The World Health Organization (WHO) states that early childhood stunting is associated with permanent cognitive impairments, poor academic performance, decreased adult productivity, and an increased risk of chronic illnesses [6]. Addressing stunting is essential for achieving global objectives such as the sustainable development goals (SDGs), particularly SDG 2.2, which aims to eradicate all forms of malnutrition by 2030 [7, 8].
Despite significant international efforts, reductions in stunting have not been uniformly achieved. The UNICEF/WHO/World Bank Joint Child Malnutrition Estimates indicate that while the global prevalence of stunting decreased from 33.1% in 2000 to 22.0% in 2020, regions such as South Asia and Sub-Saharan Africa continue to report stunting rates above 30% [9]. In Indonesia, the Studi Status Gizi Indonesia (SSGI) 2022 reported a national stunting prevalence of 21.6%, falling short of the government’s target to reduce it to 14% by 2024. These statistics underscore the urgent need for effective, scalable, and context-specific interventions [10].
One promising approach to stunting prevention is community-based education. Unlike top-down strategies, community-based education empowers local communities to become active participants in addressing stunting [11, 12]. These programs often incorporate culturally relevant messages, involve local stakeholders, and integrate educational sessions on maternal and child nutrition, hygiene, breastfeeding practices, and complementary feeding. The participatory nature of these approaches not only improves knowledge but also fosters behavior change, enabling sustainable improvements in child health outcomes [9, 12].
Several systematic reviews have explored interventions for stunting prevention, providing valuable insights into global efforts. For instance, a review by Bhutta et al. highlights the efficacy of nutrition-specific interventions, such as micronutrient supplementation and exclusive breastfeeding (EBF) promotion, in reducing stunting [13, 14]. More recently, a meta-analysis by Lassi et al. [15] emphasizes the importance of integrating nutrition-sensitive approaches, such as poverty alleviation and education, to address the underlying determinants of stunting. However, these reviews often focus on broader interventions and do not specifically analyze the role of community-based education.
Another notable review by Bhutta et al. [16] synthesizes evidence on stunting reduction policies globally but lacks detailed insights into localized, community-driven educational programs. Similarly, systematic reviews of maternal and child health interventions have acknowledged the role of community health workers but often do not isolate educational components specifically tailored to stunting prevention [17]. This gap underscores the need for a focused examination of community-based education as both a standalone and synergistic strategy.
The present systematic review aimed to address this gap by synthesizing evidence from experimental studies on community-based education interventions targeting stunting prevention. It aimed to analyze their design, implementation, and effectiveness in diverse settings. By doing so, this review will contribute to understanding best practices, contextual factors influencing success, and critical areas for future research. This evidence is vital for policymakers, healthcare practitioners, and community leaders striving to develop sustainable and culturally sensitive strategies to combat stunting at the grassroots level. This review not only builds on previous findings but also adds specificity by narrowing its focus to community-based education approaches. By examining this critical aspect, the study aimed to provide actionable insights to bridge the gap between knowledge and practice in stunting prevention, ultimately contributing to healthier and more equitable communities.
Information and Methods
This systematic review was conducted in compliance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) 2020 criteria to maintain openness and methodological rigor [18].
Eligibility criteria
The eligibility criteria were established using the PICOS framework (Table 1).
Table 1. PICOS statement
Information sources
To ensure comprehensive coverage, multiple sources of information were utilized. The electronic databases searched included PubMed, MEDLINE, Embase, Cochrane Library, Scopus, Web of Science, and PsycINFO. Grey literature was explored through platforms, such as ProQuest Dissertations and Theses, WHO IRIS, Google Scholar, and reports from local ministries of health and international organizations, like UNICEF and FAO. Manual screening of references from included studies and relevant reviews was also conducted. The search encompassed studies published from the inception of the databases to December 2024.
Search strategy
For each database, a customized search strategy was created that combined free-text terms with controlled vocabulary, such as MeSH terms for PubMed and Emtree terms for Embase. To ensure the accurate retrieval of pertinent papers, the search was refined using Boolean operators and filters. Table 2 contains the full search strings for each database.
Table 2. Search terms in the databases
Study selection
Duplicate results were eliminated after importing all search results into reference management software. Two reviewers independently examined abstracts and titles to identify papers that met the inclusion criteria. Full-text publications of eligible studies were obtained and further evaluated for inclusion. A third reviewer was consulted to resolve any disputes between the reviewers. A PRISMA flow diagram was used to document the selection process.
Data extraction
A standardized form, which was piloted and refined for this evaluation, was utilized to extract data. Extracted information included study characteristics, such as author, year, country, and design; population details including sample size; intervention specifics covering duration, content, and mode of delivery; comparator group details; outcomes measured, including primary and secondary outcomes; and key findings. Information on funding sources and potential conflicts of interest was also collected. Two reviewers independently extracted the data, and disagreements were resolved through discussion.
Risk of bias assessment
Validated instruments were employed to assess the risk of bias in the included studies. Aspects such as randomization, departures from planned interventions, missing data, outcome assessment, and reporting bias were evaluated for RCTs using the Cochrane Risk of Bias 2 (RoB 2) methodology. For quasi-experimental studies, confounding, selection bias, and deviations from intended interventions were assessed using the ROBINS-I (risk of bias in non-randomized studies of interventions) tool. Two reviewers conducted the assessments independently, and any disputes were resolved through discussion or by consulting a third reviewer.
Data synthesis
All included studies underwent a narrative synthesis with an emphasis on the features, methods, and results of the interventions.
Findings
Database searches yielded a total of 858 publications, and a manual review of reference lists revealed no additional research. After eliminating 553 duplicates and irrelevant records, 305 studies were screened for titles and abstracts. Nineteen of these studies were selected for full-text review after 286 were disqualified for failing to meet the eligibility criteria. Following a comprehensive review, 17 studies remained for inclusion after nine were disqualified due to factors, such as the lack of a community-based educational component or irrelevant participant categories. The PRISMA flow diagram illustrates the study selection process (Figure 1).
Figure 1. PRISMA flowchart for study selection
Characteristics of the studies included
Seventeen studies from diverse LMICs, including Indonesia (n=8), Kenya (n=2), Bangladesh (n=4), Afghanistan (n=1), China (n=1), and Peru (n=1), were included (Table 3). The studies employed various designs, with randomized controlled trials (RCTs, n=10) and quasi-experimental designs (n=7). Sample sizes ranged from small, localized interventions (40 participants) to large-scale community-based programs (over 2,000 participants). The majority of the studies targeted caregivers, mothers, and pregnant women, focusing on improving nutrition-related practices to prevent stunting.
The duration of the interventions varied, from single sessions lasting 90 minutes to sustained multi-year programs. Delivery methods included home visits, group workshops, counseling sessions, mobile phone support, and digital platforms, often tailored to the cultural and contextual needs of the target population. The primary outcomes measured were improvements in height-for-age z-scores (HAZ) and reductions in stunting prevalence, while secondary outcomes included changes in knowledge, attitudes, and practices (KAP) related to maternal and child nutrition, hygiene, and feeding behaviors.
Table 3. Characteristics of studies included
Risk of bias assessment
The quality of the included studies was evaluated using the ROBINS-I tool for quasi-experimental studies and the Cochrane RoB 2 tool for RCTs. Among the RCTs, six were deemed to be at low risk, while the remaining four raised some concerns due to incomplete blinding or issues with outcome data reporting. The quasi-experimental studies generally exhibited a moderate risk of bias, with common challenges including confounding variables, deviations from intended interventions, and reliance on self-reported outcomes (Figures 2 and 3).
Figure 2. Risk of bias visualization of randomized studies
Figure 3. Risk of bias visualization of non-randomized studies
Educational content delivered
All 17 studies incorporated community-based educational elements aimed at improving maternal and child nutrition behaviors.
Breastfeeding promotion: Twelve studies included EBF promotion, emphasizing early initiation, proper techniques, and the benefits of continued breastfeeding up to 24 months. For instance, mobile phone support in Bangladesh significantly increased EBF adherence rates (p<0.001), while a home-based program in Kenya led to a 25% improvement in EBF practices among urban mothers.
Complementary feeding guidance: Fourteen studies addressed complementary feeding practices, focusing on dietary diversity, meal frequency, and responsive feeding. Practical demonstrations, such as cooking classes in Indonesia, showed significant improvements in caregivers’ ability to prepare nutrient-rich meals, resulting in better dietary diversity scores (p<0.05).
Hygiene and sanitation: Nine studies integrated hygiene education, highlighting the importance of handwashing, clean food preparation, and sanitation to prevent infections that exacerbate malnutrition. A year-long intervention in Afghanistan reported a 40% improvement in hygiene practices among caregivers.
Behavioral change communication (BCC): Ten studies incorporated BCC strategies to modify caregiver attitudes and practices. A program in Bangladesh that used motivational messaging through WhatsApp enhanced maternal confidence and adherence to nutritional guidelines, improving complementary feeding practices (p<0.0001).
Delivery methods and intervention duration
Home visits: Utilized in six studies, home visits provided tailored counseling and direct support. For example, Kenyan community health workers conducting monthly home visits significantly improved exclusive breastfeeding rates and maternal nutritional literacy.
Group workshops and practical demonstrations: Five studies emphasized interactive learning, such as cooking classes and hygiene demonstrations. In Indonesia, group sessions led to a 20% increase in dietary diversity awareness among caregivers.
Digital Tools: Two studies used mobile apps and messaging platforms to deliver education, demonstrating significant behavioral improvements while reducing logistical barriers.
Duration
Intervention duration emerged as a critical factor influencing outcomes. Longer programs (12-24 months) consistently demonstrated greater effectiveness in reducing stunting prevalence and sustaining behavioral changes. For example, a two-year program in Afghanistan that combined educational sessions with nutritional supplementation reduced stunting prevalence by over 10% (p<0.001). Conversely, shorter interventions (e.g., a two-week online education program in Indonesia) were effective in raising awareness but had limited impact on long-term outcomes.
Impact on nutritional and behavioral outcomes
Primary outcomes: Improvements in HAZ were reported in 11 studies. Long-term interventions, such as an 18-month program in Peru, achieved substantial gains in child growth, with mean HAZ scores improving by 0.5 standard deviations (p<0.01). Similarly, a multi-year initiative in China observed a significant reduction in stunting prevalence, attributed to dietary counseling and complementary food provision (p<0.0001).
Secondary outcomes: Changes in caregiver KAP were observed in 15 studies. Enhanced dietary diversity scores, increased exclusive breastfeeding rates, and improved hygiene practices were notable achievements. A study in Bangladesh using mobile apps has reported a 40% increase in maternal perceptions and practices related to stunting prevention. Behavioral improvements are particularly pronounced in programs that employ culturally relevant materials and community-driven approaches.
Contextual and cultural adaptations
Cultural relevance was a key success factor in most studies. Programs that incorporated local foods, traditional recipes, and culturally familiar communication styles were more effective in engaging participants. For example, in Indonesia, community health cadres delivered educational sessions in local dialects, which increased caregiver participation and adherence.
Barriers and challenges in implementation
Logistical constraints: Challenges, such as limited resources, caregiver attendance, and time constraints impacted program effectiveness in six studies.
Scalability: While long-term, high-frequency programs were more effective, they posed challenges for scaling up in resource-constrained settings.
Caregiver resistance: Cultural norms and misconceptions occasionally hindered the adoption of recommended practices, emphasizing the need for culturally sensitive messaging.
Sustainability of educational outcomes
Few studies (n=3) assessed the long-term sustainability of outcomes. While initial improvements in KAP and growth indicators were promising, they often diminished without continued reinforcement. For example, a follow-up in Peru six months after the intervention showed retained dietary practices, but the gains in stunting reduction were less sustained.
Discussion
This study aimed to assess the effectiveness of community-based educational interventions in preventing stunting. Evidence from 17 studies assessing the efficacy of community-based educational interventions in preventing stunting in LMICs is compiled in this systematic review. The findings underscore the critical role of culturally tailored, participatory educational programs in improving child growth outcomes and related maternal and caregiver behaviors. This discussion integrates insights from the reviewed studies with previous research, highlighting both alignments and contrasts to provide a nuanced understanding of their impact and limitations.
By improving HAZ and facilitating positive changes in KAP related to nutrition and hygiene, the review demonstrated that community-based educational interventions significantly contribute to the prevention of stunting. The observed improvements align with Bhutta et al. [16], demonstrating that nutrition education enhances dietary diversity and child growth outcomes when delivered through community-based approaches [13].
Interventions targeting EBF consistently showed strong outcomes. Studies in Bangladesh, Kenya, and Indonesia have highlighted substantial increases in EBF rates, reflecting the efficacy of BCC strategies. These findings mirror those of Kimani-Murage et al. [24], reporting significant improvements in breastfeeding following community-based interventions in urban Kenyan settlements [24].
In contrast, interventions of shorter duration or those limited to one-off sessions demonstrated less impact on stunting