Obesity Prevention Interventions Research Articles

Assessing the impact of obesity interventions in the early years: a systematic review of UK-based studies

ObjectivesChildhood obesity rates in the UK are high. The early years of childhood are critical for establishing healthy behaviours and offer interventional opportunities. We aimed to identify studies evaluating the...

The Effect of an Obesity Prevention Intervention Among Specific Subpopulations: A Heterogeneity of Treatment Effect Analysis of the Greenlight Trial.

Background: Understanding how different populations respond to a childhood obesity intervention could help optimize personalized treatment strategies, especially with the goal to reduce disparities in obesity. Methods: We conducted a secondary analysis of the Greenlight Cluster Randomized Controlled Trial, a health communication focused pediatric obesity prevention trial, to evaluate for heterogeneity of treatment effect (HTE) by child biological sex, caregiver BMI, caregiver reported race and ethnicity, primary language, and health literacy. To examine HTE on BMI z-score from 2 to 24 months of age, we fit linear mixed effects models. Results: We analyzed 802 caregiver-child pairs, of which 52% of children were female, 58% of households reported annual family income of <$20,000, and 83% did not have a college degree. We observed evidence to suggest HTE by primary language (p = 0.047 for Spanish vs. English) and the combination of primary language and health literacy (p = 0.01). There was insufficient evidence to suggest that the Greenlight intervention effect differed by biological sex, caregiver BMI, or by race/ethnicity. Conclusions: This HTE analysis found that the Greenlight obesity prevention intervention had a more beneficial effect on child BMI z-score over 2 years for children of caregivers with limited health literacy and for caregivers for whom Spanish was the primary language.

Childhood obesity prevention trials: A systematic review and meta-analysis on trial design and the impact of type 1 error.

Effect sizes from previously reported trials are often used to determine the meaningful change in weight in childhood obesity prevention interventions because information on clinically meaningful differences is lacking. Estimates from previous trials may be influenced by statistical significance; therefore, it is important that they have a low risk of type 1 error. A systematic review and meta-analysis were conducted to report on the design of child obesity prevention randomized controlled trials and effectiveness according to risk of type 1 error. Eighty-four randomized controlled trials were identified. A large range of assumptions were applied in the sample size calculations. The most common primary outcome was BMI, with detectable effect size differences used in sample size calculations ranging from 0.25 kg/m2 (followed up at 2years) to 1.1kg/m2 (at 9months) and BMI z-score ranging from 0.1 (at 4years) to 0.67 (at 3years). There was no consistent relationship between low risk of type 1 error and reports of higher or lower effectiveness. Further clarity of the size of a meaningful difference in weight in childhood obesity prevention trials is required to support evaluation design and decision-making for intervention and policy. Type 1 error risk does not appear to impact effect sizes in a consistent direction.

Assessing the Performance of a Nutrition Knowledge Questionnaire With a Low Socioeconomic Status Population Using Rasch Analysis.

Parents and preschool teachers play a key role in shaping children's dietary behaviors. Knowledge of nutrition and healthy dietary choices is a key component to improve dietary habits and reduce the prevalence of obesity and associated co-morbidities. Using valid and reliable instruments is necessary for accurate assessment of knowledge to tailor interventions and measure effectiveness specific to the population of interest. The objectives of this paper are to (1) identify potential gaps in the baseline nutrition knowledge among parents and teachers using a previously validated questionnaire prior to a preschool obesity prevention intervention; and (2) assess the instrument's reliability and construct validity for a low socioeconomic status population using a post hoc Rasch analysis. Participants included 177 parents and 75 teachers who participated in a Head Start intervention study. Knowledge scores, instrument reliability, and item fit and difficulty were assessed using a Rasch analysis; t-tests were used to determine differences in scores between parents and teachers. Parents answered 38% of questions correctly while teachers correctly answered 46% of the questions. Adequate item fit and reliability were indicated for Sections 1 and 2 of the Nutrition Knowledge Questionnaire (NKQ). Section 3 demonstrated less adequate reliability. The items were found to adequately and reliably define the unidimensional measures of the three components of knowledge represented in this instrument, providing evidence of construct validity. However, Rasch measures indicated the NKQ overall was difficult for participants. Recommendations for improving the instrument for nutrition education/intervention and research practice areas related to obesity and obesity-related conditions are addressed.

Early life involvement in food skills is associated with children's cooking skills: a longitudinal analysis.

Engaging young children in food skills such as food planning and preparation early in life may be an important predictor of later child cooking skills. The aim of this study was to examine whether early life involvement in food skills (mean age at baseline=3.6 years) is prospectively associated with cooking skills among a sample of 60 children (mean age at follow-up=10.0 years; 83% White) from the Guelph Family Health Study, an ongoing cohort study examining the effect of a home-based obesity prevention intervention. Early life involvement in food skills, i.e., child involvement in grocery shopping and meal preparation, was reported by parents at baseline. Children self-reported their cooking skills at follow-up. After adjusting for child age, child sex, parent age, household income, and intervention status, early life involvement in food skills was significantly associated with later child cooking skills (β = 0.24, 95% CI (0.02-0.45), p=0.03). Future studies with larger and more socioeconomically, geographically, and racially diverse samples are needed to confirm these findings.

Are climate-change actions present in community-based obesity prevention interventions? Development and application of the DoublE-duty actions in CommunIty-baSed obesity InterVEntions (DECISIVE) framework

Abstract Aim Community-based obesity prevention interventions (CBOPIs) target the causes of obesity. Actions implemented in CBOPIs could simultaneously impact both climate change and obesity, making them a potentially important approach. To date, limited work has been undertaken to identify and categorise double-duty actions (those that simultaneously influence obesity and climate change) in CBOPIs. The prevalence of double-duty actions in CBOPIs is currently unknown. This paper outlines the development and application of the DoublE-duty actions in CommunIty-baSed obesity InterVEntions (DECISIVE) framework to address this gap. Subjects and methods A scoping review focusing on obesity and climate change was performed, and the results informed the development of DECISIVE. DECISIVE was applied to studies included in the Cochrane review of obesity prevention interventions in children, and both the published and unpublished data of a completed intervention. Results The scoping review identified one study and one systematic review which contributed to the development of DECISIVE. The framework lists nine double-duty actions, plus an ‘Other’ action. Each action’s potential impact on both obesity and climate change is summarised and example strategies are provided. Reduce the availability and consumption of ultra-processed foods was the most prevalent double-duty action when applying DECISIVE to published studies. Conclusion DECISIVE is the first framework to recognise double-duty actions on obesity and climate change in CBOPIs. The development of DECISIVE holds important implications for community stakeholders who may be able to better identify, incorporate, and promote double-duty actions. This may enhance stakeholder acceptability, feasibility, and value-for-money of interventions.

Fathers’ use of social media for social comparison is associated with their food parenting practices

Over 85% of parents use social media; however, limited research has investigated the associations between parental social media use and food parenting practices. The objectives of this study were to: 1) describe how mothers and fathers use social media focused on topics related to child feeding and family meals; and 2) examine associations between parental social media use focused on child feeding and family meals and mothers' and fathers' food parenting practices. Data were obtained from 179 mothers and 116 fathers of children aged 3–8 years enrolled in a family-based obesity prevention intervention. We used descriptive statistics to describe parents' social media use in relation to child feeding and family meals and linear regressions with generalized estimating equations to explore associations between parents' social media use and food parenting practices. Models were stratified by parent gender and adjusted for household income, parent ethnicity, parent age, child sex, and intervention status. A higher percent of mothers than fathers reported using social media to seek information related to child feeding and family meals (64.8% mothers; 25.0% fathers) and to share and compare family meals and food choices (41.9% mothers; 19.8% fathers). While social media use was not associated with food parenting practices in mothers, fathers’ social media use to share and compare family meals and food choices was associated with negative food parenting practices, i.e., greater use of food for emotional regulation (β = 0.37, p = 0.02) and greater use of food for reward (β = 0.34, p = 0.02). Study results can inform strategies to promote healthy social media use among parents of young children.

Co-Design of a Reusable Learning Object (RLO) to Address Caregiver Responsive Infant Feeding Behaviours (CRIB) to Prevent Childhood Obesity: A Mixed-Method Protocol.

Responsive infant feeding is a key strategy for childhood obesity prevention. Responsive feeding involves caregivers responding to infant hunger and satiety cues in a timely and developmentally appropriate manner. There is a dearth of evidence-based information and guidance for caregivers on how to responsively feed their infants. The aim of this research is to co-design a Reusable Learning Object (RLO) and guidance infographic to improve caregiver awareness, understanding and use of responsive infant feeding behaviours. The Capability, Opportunity, Motivation and Behaviour (COM-B) model of behaviour change and the Aim, Storyboarding, Populate specification, Implement media, Review and release prototype, and Evaluate (ASPIRE) approach for digital intervention co-design will be utilised. Four co-design workshops with caregivers of infants and healthcare professionals (HCPs) will determine priority RLO content. Content analysis will enable RLO development and process reporting. Formative and summative surveys will be conducted to evaluate the usability of the RLO, its impact on caregivers and its potential implementation into NHS care pathways. The output will be a RLO on responsive feeding for caregivers and an infographic for HCPs/support workers which will contribute to a future obesity prevention intervention. The findings will be disseminated to stakeholders and submitted for publication in a peer-reviewed journal.

Prevalence of Obesity and Its Associated Psychological Factors and Mindful Eating Among Medical Students: A Cross Sectional Study in UPM

Introduction: There is a tremendous prevalence of obesity worldwide, among both adults and children. Obesity may be caused by various factors, including genetic factors, psychosocial stresses, and environmental factors. Some local studies showed that the prevalence of obesity is high among undergraduate medical students, which might impact the quality of life of the medical students. The objective of this study is to determine the prevalence of obesity among UPM medical students and its associated factors, including sociodemographic factors, levels of mindful eating, and psychological factors. Method: A cross sectional study was performed on 483 medical students between 20 and 26 years old who were selected via universal sampling method. Through a google form, medical students were sent a self-administered online questionnaire that included sections on sociodemography, psychological distress, MEQ scores, and self-reported weight and height. Results: The majority of the respondents were female undergraduate medical students (66.9%). Out of 483 respondents, 166 were obese (34.4%). Multivariate logistic regression analysis shows that gender (p &lt;0.001, β: 1.018), age (p:0.014, β:0.156), ethnicity (Chinese: p&lt;0.001, β-1.020) and total MEQ scores (p &lt;0.001, β:1.669) were statisticly significant associated with obesity. Conclusion: In summary, this study explores obesity prevalence and its associated factors among UPM medical students, including sociodemographics, mindful eating, and psychological aspects. The factors of this study which were significant associated with obesity were gender, age, ethnicity and total MEQ scores. By recognizing the myriad variables intertwined with obesity development, we can now design more targeted interventions for obesity prevention. This broader perspective compels a shift from one-size-fits-all approaches to tailored solutions that address the unique needs and susceptibilities of individuals.

Nutrition Interventions for Pediatric Obesity Prevention: An Umbrella Review of Systematic Reviews.

Nutrition interventions to prevent pediatric obesity can help to establish healthy habits to improve current and future health. The objective of this umbrella review of systematic reviews (SRs) is to examine the impact of obesity prevention interventions with a nutrition component on body mass index measures, overweight/obesity prevalence, and cost-effectiveness in participants 2-17 years old. Grading of Recommendations Assessment, Development and Evaluation (GRADE) methods were used, and this umbrella review was registered on PROSPERO (CRD42023443033). Included SRs were required to search ≥2 databases and to assess the risk of bias (RoB) of primary studies, and they were published 2017-June 2023. Database searches identified 4776 articles, and 31 SRs were included. In all age groups combined, interventions with both nutrition and physical activity were effective and cost-effective in all settings combined, and in the community setting specifically. In children ≤5 years old, interventions in the home and family, community, and healthcare settings demonstrated some efficacy, whereas in children 6-12 years old, school interventions were most effective. Evidence with individuals 13-17 years was limited. The certainty of evidence was generally low due to RoB in included studies, inconsistency, and imprecision. Pediatric obesity prevention interventions with nutrition should be tailored to the developmental stage to ensure appropriateness and efficacy.

Impact of an early 1000-day intervention for obesity prevention on adiposity and BMI at two years of age: A quasi-experimental study

Impact of an early 1000-day intervention for obesity prevention on adiposity and BMI at two years of age: A quasi-experimental study

Peer-Led Focus Groups Identify Barriers to Healthy Lifestyle in African American Adolescents from Baltimore City

Objectives Black youth are disproportionately affected by the US obesity epidemic. Early-age obesity often continues into adulthood and is associated with a higher risk of diabetes, cardiovascular disease, and premature death. Few studies have incorporated community-based participatory research (CBPR) facilitated by youth to provide frank discussions among teens living in inner cities about challenges and facilitators in maintaining a healthy weight and to design teen-identified interventions. Design Black youth (n=10) were recruited from a Baltimore City high school during the 2019 to 2020 academic year and were trained by seasoned investigators and mentored by graduate and undergraduate students on qualitative methods using CBPR. These youth then implemented focus groups with their peers aged 15 to 18 years (10 focus groups of 10 teens each). Topics included healthy lifestyle knowledge, behaviors, attitudes, and suggested interventions. Content analyses were conducted using dual-rater techniques. Results Focus group themes yielded strengths and challenges of weight maintenance for Black youth at various levels, including in their personal lives, families, school, and community. Themes also suggested several technology-based possibilities using social media to reach Black youth about healthy living practices. Conclusions Engagement of Black youth in CBPR projects can yield valuable data to design more culturally responsive and developmentally appropriate interventions. Youth are competent collectors of information to identify needed changes in their schools/communities and about the use of technology/social media to facilitate improved health practices among their peers and should be involved early in the process of developing targeted obesity prevention interventions and/or programs.

Online Health Communities’ Portrayal of Obesity on Social Media Platforms in South Africa

The rapidly increasing prevalence of obesity in South Africa, intertwined with extensive changes in diet, life expectancy, and nutritional status has led to a complex framing of obesity on social media. This has prompted the prioritization of media-based social and behavior change communication interventions leveraging social media for obesity prevention. This study was conducted to understand how obesity is constructed and represented on social media in South Africa. A media review of Facebook and Twitter platforms in South Africa was conducted over a six-month period using Meltwater software for data collection. The search yielded 13 500 posts and tweets. Data were cleaned and coded in Microsoft Excel. Content and framing analysis were performed to add insight into the nature of obesity discourse on social media. Portrayals of obesity on social media were dominated by stigmatizing imagery blaming individuals for unhealthy lifestyles, poor diets, and lack of physical activity. Future media-based social and behavior change communication interventions for obesity prevention can leverage social media to reach the broader public and insights into media portrayals of obesity have the potential to influence the shape and development of these behavioral interventions.

&iexcl;Miranos! An 8-Month Comprehensive Preschool Obesity Prevention Program in Low-Income Latino Children: Effects on Children's Gross Motor Development.

Organized childcare is an ideal setting to promote gross motor development in young children from low-income minority families. A three-group clustered randomized controlled trial was conducted in Head Start centers serving low-income Latino children to evaluate the impact of an 8-month comprehensive obesity-prevention intervention on children's percentile scores for locomotive skills (LS pctl) and ball skills (BS pctl), and general motor quotient (GMQ). Trained Head Start staff delivered the center-based intervention (CBI) to modify center physical activity and nutrition policies, staff practices, and child behaviors, while the home-based intervention (HBI) offered training and support to parents for obesity prevention at home. Participants were 3-year-old children (n = 310; 87% Latino; 58% female) enrolled in Head Start centers in South Texas. Twelve centers were randomized (1:1:1 ratio) to receive CBI, CBI and HBI (CBI + HBI), or control treatment. Posttest data were collected from 79.1% of participants. All gross motor development measures improved significantly for children in CBI compared to the control, while children in CBI + HBI only showed improvement for GMQ (p = 0.09) and LS pctl (p < 0.001) compared to the control. A comprehensive and culturally competent intervention targeting childcare centers and children's homes was effective at improving children's gross motor development and reducing disparities in child development.

Healthy lifestyle in the first 1000 days and childhood overweight and obesity in 4 European cohorts

Abstract Background The high prevalence of overweight and obesity in young children suggests the involvement of early life exposures. Based on the Developmental Origins of Health and Disease paradigm, we investigated associations of healthy lifestyle (HL) behaviours around the first 1000 days of life with adiposity and weight status throughout childhood. Methods Cohort-specific analyses were conducted in four European birth cohorts (EDEN, Elfe, France; Generation R, the Netherlands; Lifeways, Ireland), implementing a harmonized data and analysis approach. Composite HL scores were calculated during pregnancy (maternal/parental) and infancy periods based on parental diet quality, BMI, smoking status, alcohol consumption; and for infant score breastfeeding, age of solid food introduction and exposure to passive smoking. Associations with child BMI (measure of overweight and obesity) and waist-to-height ratio (WHtR, measure of abdominal obesity) at age 5 and 9 were assessed using linear (BMI z-scores and WHtR) and logistic regression (IOTF categories). Results Current results are based on the Lifeways data; other cohort-specific analyses are ongoing. Depending on the period, up to 50% of the sample had unfavourable lifestyle factors, determined by a HL score of less than half of the possible points. Lower maternal and parental pregnancy HL scores, indicating lower adherence to HL factors, were associated with a higher child BMI at age 5 and 9. Associations with WHtR were non-significant. A low infancy HL score was strongly and consistently associated with both a higher child BMI and WHtR at age 5 and 9. Conclusions A low adherence to HL factors around the first 1000 days of life was associated with a higher risk of childhood obesity. If confirmed in the other birth cohorts, these findings will inform the development of future early family-based lifestyle obesity prevention interventions. Key messages • Low adherence to healthy lifestyle behaviours around the first 1000 days of life is associated with a higher risk of childhood obesity and abdominal adiposity. • If confirmed in the other cohorts, these results call for further research exploring family and multi-behavioural approaches to prevention of childhood obesity.

Randomized-controlled trial of a whole-family obesity prevention and treatment intervention designed for low-income Hispanic families: HeLP the healthy living program

BackgroundLow-income Hispanic families face marked disparities in obesity, but interventions for obesity prevention and treatment have rarely been designed with this population as a focus. Hispanic culture is characterized by Familism, a value that prioritizes familial respect, cooperation, and togetherness. We describe the rationale and design of a trial of the Healthy Living Program (HeLP), a bilingual whole-family behavioral obesity prevention and treatment intervention designed around the value Familism and addressing food insecurity. Methods/designThis two-group randomized comparative effectiveness trial will compare the effects of HeLP versus a primary care counseling intervention (Recommended Treatment of Obesity in Primary Care, or RTOP) on decreasing body mass index (BMI; kg/m2) in Hispanic children 2–16 years of age with obesity and preventing BMI increase among siblings without obesity. 164 families per arm will be recruited from primary care practices. Families randomized to HeLP will participate in 12 two-hour sessions, followed by booster sessions. HeLP sessions include family meals and instruction in parenting skills, nutrition, culinary skills, fitness, and mindfulness delivered at community recreation centers by bilingual health educators and athletic trainers. Families randomized to RTOP will be offered individual visits in primary care every 3 months throughout the 18-month follow-up period. Secondary outcomes include changes to objectively measured child fitness, the home environment related to nutrition, physical activity, and media usage, food insecurity, child eating behaviors, quality of life, parent BMI and waist circumference, and implementation outcomes. DiscussionThis protocol paper describes the rationale and planned methods for the comparative effectiveness trial. Trial registrationClinicaltrials.gov Identifier NCT05041855 (6/13/2023).

Implementing Successful Early Childhood Obesity Prevention Interventions: The Need for Family-Based Effectiveness-Implementation Hybrid Studies.

Implementing Successful Early Childhood Obesity Prevention Interventions: The Need for Family-Based Effectiveness-Implementation Hybrid Studies.

Association of behavior pattern with overweight and obesity in South Korean adults-A multi correspondence analysis (KNHANES-2018-2020).

The objective was to determine the association between health-related behaviour with overweight and obesity in South Korean adults by using the Korean National Health and Nutritional Examination Survey (KNHANES) 2018-2020. The study participants were 16,784 aged ≥ 20years. The variables were socio-demographic, lifestyle, food habits and metabolic conditions. The logistic regression analysis performed to find the association by the odds ratio (OR, 95% CI). MCA performed to identify risk factors were computed for overweight and obesity. Overweight and obesity were significantly associated with health behaviour, high income (OR = 1.26; 95% CI: 1.15-1.39), smoking(OR = 1.29; 95% CI: 1.08-1.53), low physical activity(OR = 3.23; 95% CI: 1.79-4.69), diabetes(OR = 2.70; 95% CI: 1.62-4.50), high cholesterol and low HDL(OR = 3.98; 95%CI:2.65-5.97). The high discriminant variables of MCA were aged over 60years, lower education, high income, diabetes, lack of physical activity, and high cholesterol. The findings confirm that the OR of obesity and overweight was likely associated with health behaviour patterns. Besides, it indicates the MCA would be very effective to identify the population-based data context than individual data and it may suggest that more research on association between health behaviours and obesity prevention interventions should be developed for each age group for better health outcomes.

O.3.3-6 Brazilian immigrant parents' preferences for content and intervention modalities for the design of a family-based intervention to promote their preschool-age children’s healthful energy balance-related behaviors

Abstract Purpose Childhood obesity is a complex public health problem disproportionally affecting racial/ethnic minority populations and children in immigrant families. Promoting healthful energy balance-related behaviors (EBRBs) in young children, a fundamental obesity preventative strategy, is critical for addressing health disparities in childhood obesity among ethnic minority and immigrant populations. Accumulating evidence indicates that unhealthful EBRBs, including poor eating behaviors (e.g., high consumption of unhealthy foods and sugar-sweetened beverages [SSBs]), inadequate physical activity (PA), excessive sedentary behavior/screen time, and short sleep duration, increase the risk of childhood overweight and obesity. Brazilians are a rapidly growing ethnic immigrant population in the United States (U.S.) and currently, there is a lack of childhood obesity prevention interventions addressing the needs of Brazilian preschool-age children. Methods Guided by the family ecological model, this formative cross-sectional study assessed the preferences (content, intervention modality, and language) of 52 individual Brazilian immigrant families (27 mothers, 25 fathers) for the development of a family-based intervention to promote healthful energy balance-related behaviors (EBRB). Results Overall, 85% or more of parents reported being interested or very interested in content related to five (increase fruits and vegetables, reduce unhealthy foods and sugar-sweetened beverages, increase physical activity, and reduce screen time) out of the seven assessed EBRBs. Group sessions delivered by community health workers (CHWs), email, and text messages were the preferred intervention modalities with most parents (71.2%) indicating a preference for content delivered in Portuguese. Interventions integrating multiple components such as workshops offered by CHWs, text messaging using SMS and WhatsApp, and printed materials should all be considered. Conclusions Future steps should include investigating different communication channels and their integration into a pilot test of a linguistic and cultural-sensitive family-based intervention to promote healthful EBRBs of preschool-age children in Brazilian families in the U.S.

The theoretical and practical difficulties of evaluating a community-based 'whole systems' obesity prevention intervention: a research team's critical reflection.

This article critically discusses the purpose, pragmatics and politics of conducting commissioned evaluations on behalf of public sector organisations by drawing on the experience of evaluating a community-based 'whole systems' obesity prevention intervention for an English local council. The study presented in this article incorporated two approaches: an evaluability assessment that interrogated the theoretical and practical difficulties of evaluating the intervention in a non-political way, and a retrospective analysis using Soft Systems Methodology that interrogated the more political difficulties of conducting such an evaluation in the 'real world'. The information and insights that enabled these reflections came from over 3 years of working closely with the programme team, attending and participating in stakeholder events and meetings, presenting to the Council's Scrutiny Committee meetings, four interviews with the programme manager, and multiple face-to-face group meetings, email exchanges and telephone conversations. The study reveals and analyses three key inter-related challenges that arose during the evaluation of the 'whole systems' obesity prevention intervention: the programme's evaluability, the evaluation purpose, and the nature, role and quality of evidence. The evaluability assessment was important for defining the programme's theoretical and practical evaluability, and the retrospective analysis using Soft Systems Methodology enabled a greater understanding of the political tensions that existed. Key learning points related to the challenges that arose during this evaluation have broad applicability.