Prevalence Of Overweight In Children Research Articles

Planning policies to restrict fast food and inequalities in child weight in England: a quasi-experimental analysis.

England has one of the highest childhood obesity rates in Europe. To promote a healthier food environment in 2015, Gateshead Council in North East England introduced planning guidelines effectively banning any new fast-food outlets. Our aim was to investigate whether this policy led to any reductions in childhood overweight and obesity prevalence and the inequalities in these outcomes. We used data from the National Child Measurement Programme, the Food Standards Agency Food Hygiene Rating Scheme data, and the Office of National Statistics between 2012 and 2020. We estimated a difference-in-differences model employing propensity score matching to identify a control group. We found no significant change in population-level childhood overweight and obesity in Gateshead compared with control areas. In subgroup analysis by area-level deprivation, we found that the quintile of deprivation with the highest proportion of fast-food outlets had a statistically significant reduction of 4.8% in the prevalence of childhood overweight and obesity compared with control areas. Restricting fast-food outlets in areas with a high concentration of such outlets as part of a package of policies to reduce childhood obesity may help to reduce prevalence and inequalities in childhood overweight and obesity.

Reducing the incidence of overweight and obesity by a healthy lifestyle intervention program for schoolchildren in Hanoi, Vietnam: a randomized controlled trial

BackgroundThe increasing incidence and prevalence of childhood overweight (OW) and obesity (OB) are major global health challenges. This study aimed to evaluate the effectiveness of a 2-year healthy lifestyle intervention program in reducing the incidence of OW and OB among schoolchildren aged 11–12 years in Vietnam.MethodsStudy design: Randomized controlled trial.Participants and interventions: In total, 733 students participated in this study. Participants were included from four schools in Hanoi based on a random cluster sampling method. Students’ health outcomes were assessed at baseline and after 2 years.Main outcomes: The primary outcomes were the incidence of OW and OB, and the secondary outcomes were the prevalence and remission of OW and OB. Generalized estimating equations (GEEs) were used to determine the outcomes and risk factors.ResultsAfter the intervention, the prevalence of OW decreased by 9.24% in the intervention group and 3.01% in the control group.After adjustment for age and sex, the odds of overweight were 36.7% lower in the intervention group than in the control group (OR = 0.633; 95% CI: 0.434–0.925; P = 0.018). The incidence of OW was 1.31% in the intervention group compared with 5.33% in the control group. After adjustment for age and sex, the odds of incident overweight in the intervention group were 77.4% lower than in the control group (OR = 0.226; 95% CI: 0.063–0.813; P = 0.023). The proportion of patients who achieved OW remission was 41.22% in the intervention group and 28.68% in the control group. After adjustment for age and sex, the odds of OW remission of overweight were 2.219 times greater in the intervention group than in the control group (OR = 2.219; 95% CI: 1.220–4.036; P = 0.009). For most OB-related factors, there were no significant differences between the intervention and control groups.ConclusionA multicomponent healthy lifestyle intervention was effective in reducing the incidence of OW; however, it had no significant effect on OB among children aged 11–12 years in Hanoi, Vietnam.Trial registrationRetrospectively registered number: UMIN000014992, 20/08/2023.

Relationship Between Eating Patterns, Physical Activity, and Obesity Incidence Among Madrasah Tsanawiyah (MTs) Students

Obesity is a chronic disease characterized by excess body fat, increasing the risk of type 2 diabetes, heart disease, bone disorders, reproductive issues, and cancer, while also affecting quality of life, including sleep and mobility. According to WHO, the prevalence of overweight children and adolescents aged 5–19 years increased from 8% in 1990 to 20% in 2022. Recent data from the Ministry of Health in 2023 shows a high prevalence of central obesity among those aged 15–24 years, with 8.3-9.2% in males and 23.4-24.7% in females. This quantitative research employs an observational analytic design with a cross-sectional approach, using SPSS with the Chi-Square test to identify the relationship between dietary patterns and physical activity with the incidence of obesity among MTS students in Gowa Regency. Results indicate no significant relationship between dietary patterns (FFQ and IDDS) and obesity incidence, with p-values of 0.895 and 0.066, respectively. Similarly, physical activity showed no significant relationship with BMI, with a p-value of 0.056. Future studies should consider expanding variables to include factors influencing students' dietary patterns and physical activity, and conduct in-depth analyses using multiple regression.

Correlation between Breastfeeding, Maternal Body Mass Index, and Childhood Obesity.

Breast milk is a unique and highly beneficial source of nutrition for infants. It contains a wide range of nutrients that are specifically tailored to meet the specific needs of a growing infant. On the other hand, obesity is a major health issue that affects people around the world. The aim of this study is to investigate the relationship between breastfeeding and child BMI and the role of maternal BMI, which may influence this relationship. This study revealed that a longer duration of exclusive breastfeeding was associated with a decrease in the prevalence of overweight children. Additionally, the research found that children born to overweight or obese women had a higher probability of being overweight or obese themselves. Considering that mothers with a higher pre-pregnancy body weight are more likely to have children with a higher BMI, it is important that they receive information about the advantages of breastfeeding for a minimum of 6 months for both themselves and their children. Additionally, they should be offered ongoing support, to encourage them to start breastfeeding and continue with it beyond this period.

Rising socioeconomic disparities in childhood overweight and obesity in Belgium

BackgroundChildhood overweight, especially obesity, significantly impacts children’s health and poses an increased risk of adult-onset diseases. This study aims to analyse the evolution of childhood overweight and obesity in Belgium from 1997 to 2018 and assess its variation across parental socioeconomic status (SES).MethodsThe Health Interview Survey, a cross-sectional survey representative of the Belgian population, has been conducted since 1997, with the latest survey conducted in 2018. This study focuses on children aged 2–17 years. Body Mass Index (BMI, kg/m²) was derived from self-reported data, supplemented with proxy reports for children under 15 years old. Overweight and obesity were classified using age/sex-specific cut-off points. Highest parental educational level served as the indicator of SES. In addition to reporting the overall prevalence and the 95% confidence interval (95%CI) of childhood overweight and obesity by year, this study examines the absolute difference in prevalence between SES groups (low minus high) and calculates the Odds Ratio (OR, adjusted for age and sex) to evaluate the relative difference.ResultsThe overall prevalence of childhood overweight rose from 13.6% (95%CI = 11.2-16.1%) in 1997 to 18.9% (95%CI = 16.3-21.5%) in 2018; while it remained stable for obesity, fluctuating between 5.4% and 6.3% over the same period. This increase was more pronounced among children with low SES compared to those with high SES. Consequently, the absolute difference between children with low and high SES increased over time from 8.0% points (pp) in 1997 to 14.9 pp in 2018 for overweight, and from 3.1 pp to 6.8 pp for obesity. In terms of relative inequalities, overall, children with low SES exhibited significantly higher odds of overweight and of obesity than those with high SES (OR varying between 2 à 3 for overweight and between 2 and 4 for obesity).ConclusionsThe escalating disparities over time highlight SES as a significant risk factor for childhood overweight and obesity. Addressing these inequalities requires interventions such as providing healthy meals and increasing sports opportunities at school. Additionally, it is recommended to regulate fast food outlets near schools and limit unhealthy food marketing, particularly because children with low SES are more exposed to such influences.

The Optimal Cut-Off Point of Physical Activity for the Prevention of Childhood Overweight and Obesity.

Childhood obesity might threaten children's current and adulthood health outcomes. Previous studies have illustrated the positive effects of physical activity on weight control; however, there is a lack of evidence on the optimal dose of physical activity. Therefore, we aimed to explore the relationship between physical activity and overweight and obesity, as well as the optimal threshold for physical activity. The median (interquartile range) and number (proportion) were used to describe the statistics. The Mann-Whitney U test and chi-square test were used for an univariable analysis. The generalized additive model with a smooth function was used to depict the preliminary relationship between physical activity and overweight and obesity. The cut-off level of physical activity was identified using AddFor algorithms, and a logistic regression model was applied to explore the multivariable relationship between physical activity and overweight and obesity after adjusting for control variables. According to the statistical analyses, 24.3% of 842 children and adolescents had overweight and obesity. The average number of days that the participants engaged in more than one hour of physical activity was three days a week. The optimal cut-off level of physical activity for the prevention of childhood overweight and obesity was 4 times a week. The participants who exercised more than four times a week (AOR(95% CI) = 0.56(0.38, 0.83), p = 0.004) were less likely to be overweight and obese. In the context of the general lack of physical activity among children and adolescents, we recommend that children and adolescents engage in 60 min of physical activity more than four times a week for a healthy weight.

Prevalence and Determinants of Obesity and Overweight Among Children and Adolescents in the Middle East and North African Countries: An Updated Systematic Review.

In recent years, the countries of the Middle East and North Africa (MENA) region have experienced alarming increases in the prevalence of childhood overweight and obesity. This updated systematic review sought to measure the prevalence and determinants of obesity and overweight among children and adolescents in MENA countries. A literature search for relevant observational studies published in English was conducted using PubMed, Web of Science, Google Scholar, and Saudi Digital Library. The risk of bias was evaluated using the Newcastle-Ottawa Scale. Twenty-one published articles during the past five years were included in the systematic review. Varied approaches were used to diagnose childhood overweight and obesity, including the International Obesity Taskforce (IOTF), Centre for Disease Control (CDC), World Health Organization (WHO), and Saudi Growth Pattern Curves. We found that the combined prevalence of childhood overweight and obesity in the Middle East is up to 49.4%, depending on the methods applied in their studies. Risk factors identified were age, male gender, lack of sufficient physical activity, consumption of fried food, perceived stress level, number of family members, family size, mother's occupation, education level, family history of obesity, high energy consumption from carbohydrates, ≥2 hours spent on watching television on weekend days with overweight, and always eating breakfast while watching television with obesity. The results of this review indicate that the issue of childhood and adolescent overweight and obesity in the Middle East is substantial and concerning. Most of the risk factors identified are modifiable and, if given appropriate attention, could significantly reduce the burden of associated chronic complications.

Prevalence and Associated Risk Factors of Childhood Obesity and Overweight in Erbil City, Kurdistan, Iraq: A Household Survey

The prevalence of overweight and obesity has increased dramatically during the last three decades. It is estimated that 170 million youngsters (under the age of 18) worldwide are overweight. Obesity is commonly regarded as one of the most significant public health problems of the early 21st century due to its rapid rise and severe public health consequences. According to previous research, the prevalence rate of obesity and overweight increased in Erbil. This study aims to determine the prevalence of childhood overweight and obesity rates in Erbil. This study was a household survey based on a cross-sectional study that was conducted, and a multi-stage sampling strategy was used to choose the study sample. A questionnaire was conducted to collect the data, SPSS was used for analysing the data, and Chi-square (X²), was used to identify any kind of association between different variables in the study, whereas the p-value was considered (0.05). Regarding ethical approval, the study was conducted under the guidelines of the ethical approval research committee in the College of Medicine. In this research, the prevalence rate of obesity and overweight was 30.4%, 7.7% of them were obese, and 22.7% were overweight. The obesity rates between males and females were not different. Lifestyle and habit had an impact on increasing weight gain, though the number of meals, outside eating, fast foods, and snacks between meals were statistically not significant. However, eating without hunger was significant the p-value was (0.008). On the other hand, the children's habit of using electronic devices, smartphones, and other devices was significant, either using their mobile phone or their parent's phone. In conclusion, in Erbil city, the prevalence rate of obesity and overweight was dramatically increased, as well as the lifestyle factor that contributed to the development of these conditions, especially among those children exposed to multi-screen devices. According to these results, families have to improve their lifestyles and decrease the use of electrical devices by children.

The Shaping Healthy Choices Program: Improving the impact through community partnerships

The high prevalence of childhood overweight and obesity demonstrates the need for effective intervention strategies. The Shaping Healthy Choices Program (SHCP) is a school-based intervention that promotes nutrition and physical education, develops family and community partnerships, and incorporates foods available on the school campus, with the goal of achieving sustainable student health outcomes. Partnerships developed through implementation of the SHCP were analyzed using the RE-AIM: Reach, Effectiveness, Adoption, Implementation, Maintenance (RE-AIM) framework to assess the potential for adoption, scaling and sustainability of the program. The RE-AIM framework is a comprehensive approach to evaluating public health interventions through reach, effectiveness, adoption, implementation and maintenance. Partners of the SHCP include site staff (teachers, administration and health professionals), parents, peer teachers, and state and federal agencies, such as the Supplemental Nutrition Assistance Program Education (SNAP-Ed), which funds CalFresh Healthy Living, University of California (CFHL, UC), and UC Cooperative Extension. This analysis highlights how partnerships developed and sustained with the SHCP may serve as a model for other programs to expand, while also enabling programs to remain responsive to the diverse challenges and needs of local community partners.

Untangling the complex implementation process of community-based health promotion: a multiple-case study in the Netherlands.

Community-based programmes are a widely implemented approach for population health promotion. Due to the context-dependent and dynamic nature of these programmes, evaluating their implementation is challenging. Identifying key events in the implementation process in evaluation could enable us to support future implementation, while acknowledging the complexity of real-world implementation. We studied the nationwide implementation of the Dutch Healthy Youth, Healthy Future (JOGG) approach, a community-based programme for childhood overweight prevention. The aims of our study were (i) to gain insights into the implementation process of the JOGG approach, and (ii) to identify key events that influenced said process. In nine communities, we conducted interviews (n = 24) with coordinators and stakeholders involved in the implementation of the JOGG approach and collected documents on the programme's implementation. We applied the analytical tool 'Critical Event Card' to identify key events in the implementation process. Results showed that in 5-10 years of implementing the JOGG approach, communities have undergone different phases: preparation, upscaling, resource mobilization, integration with other policy initiatives and adaptation of the implementation strategy. Key events influencing the implementation process included national policy developments (e.g. new health programmes), framing of the JOGG approach in local policy, staff turnover and coordination teams' experiences and actions. Furthermore, changes in implementation were often triggered by the destabilization of the implementation process and linked to opportunities for change in the policy process. The identified key events can inform future implementation of the JOGG approach as well as other community-based health promotion programmes.

Trends in inequalities in childhood overweight and obesity prevalence: a repeat cross-sectional analysis of the Health Survey for England

ObjectiveTo examine trends in socio-economic and ethnic inequalities in childhood overweight and obesity in the England between 1995 and 2019 in survey data and to compare these to administrative data.DesignObservational...

Do maternal socioeconomic status influence child overweight?

The prevalence of overweight among Chinese children under 5 years of age has been increasing steadily. Using data from China Health and Nutrition Survey (CHNS) spanning from 1991 to 2015, this study investigates the relationship between maternal employment status, maternal education level, and the prevalence of child overweight among Chinese children under 5 years old. The findings indicate that having mothers with low middle school education significantly reduces their children's body mass index z-scores (BMIZ) (p < 0.05). However, no significant association is observed between maternal education level and childhood overweight in urban areas. In rural areas, only when the maternal education level is college or above, there is a significant increase in BMIZ (p < 0.01). The impact of maternal education level on childhood obesity is influenced by household per capita income, and when household per capita income reaches a certain level, higher maternal education is negatively associated with child BMIZ. The study also reveals a significant negative association between maternal employment (p < 0.01)，average weekly working days (p < 0.01), and the BMIZ of children under 5 years of age, while the interaction effect between them is positive and significant. This study has recommended some policy interventions, by promoting parental education on child feeding and parenting, providing professional child care, and offering financial subsidies to families with children under 5.

The Impact of Chronic Stress Related to COVID-19 on Eating Behaviors and the Risk of Obesity in Children and Adolescents.

During the COVID-19 pandemic, an increase in the incidence of overweight and obesity in children was observed. It appears that unhealthy food choices, an unbalanced diet, and a sedentary lifestyle, as well as experiencing stress related to the pandemic, may be contributing to this disturbing trend. Chronic stress is a significant factor contributing to eating disorders and obesity in youngsters, involving medical, molecular, and psychological elements. Individuals under chronic stress often focus on appearance and weight, leading to negative body image and disrupted relationships with food, resulting in unhealthy eating behaviors. Chronic stress also impacts hormonal balance, reducing the satiety hormone leptin and elevating the appetite-stimulating hormone ghrelin, fostering increased hunger and uncontrolled snacking. Two systems, the hypothalamic-pituitary-adrenal axis and the sympathetic system with the adrenal medulla, are activated in response to stress, causing impaired secretion of noradrenaline and cortisol. Stress-related obesity mechanisms encompass oxidative stress, neuroinflammation, insulin resistance, and neurohormonal and neurotransmission disorders. Stress induces insulin resistance, elevating obesity risk by disrupting blood sugar regulation and fat storage. Stress also affects the gut microbiome, potentially influencing chronic inflammation and metabolic processes linked to obesity. In conclusion, chronic stress is a multifaceted risk factor for eating disorders and obesity in children, necessitating a comprehensive understanding of effective preventive and intervention strategies amid the escalating prevalence of childhood overweight and obesity.

Changes in dietary habits and BMI z-score after a 6-month non-randomized cluster-controlled trial among 6-12 years old overweight and obese Norwegian children.

Effective prevention programs to address the high prevalence of childhood overweight and obesity and the concomitant health consequences have been warranted. To improve dietary habits and weight status among Norwegian children with overweight/obesity in the primary care setting. A 6-month non-randomized cluster-controlled intervention among 137 children, aged 6-12 years, with overweight/obesity and their parents. Intervention and control groups were recruited by public health nurses and followed-up by 12 Healthy Life Centers across Norway. The intervention group received individual family counseling and participated in nutrition courses and physical activity groups. A frequency questionnaire assessing sociodemographic characteristics and dietary habits was completed by the parents. Trained public health nurses measured height and weight using standardized methods to calculate body mass index (BMI) and BMI z-scores. The intervention resulted in an increased odds of consuming evening meals (OR: 3.42), a decreased availability of salty snacks (β = -0.17), a decreased intake of salty snacks (-0.18), an increased consumption of water (β = 0.20), and a decreased estimated total intake of energy (β = -0.17), carbohydrates (β = -0.17), mono- and disaccharides (β = -0.21), sucrose (β = -0.24), and saturated fatty acids (β = -0.17). The intervention directly predicted lower BMI z-score (β = -0.17), and post-treatment levels of energy (β = -0.65), saturated fat (β = 0.43), and total carbohydrates (β = 0.41) were directly linked to BMI z-score after intervention. Age and sex were indirectly associated with BMI after intervention through energy and saturated fat intake. The intervention had a beneficial impact on nutrient intake and weight status among children with overweight/obesity. These findings provide support for implementing complex intervention programs tailored to local primary care settings. Clinicaltrials.gov, NCT02290171. Registered 13. November 2014, https://clinicaltrials.gov/ct2/show/NCT02290171.

Prevention of childhood overweight and obesity in Mongolia, the Philippines and Vietnam: identifying priority actions.

Low- and middle-income countries are increasingly faced with a triple burden of malnutrition: endemic underweight, micronutrient deficiencies and rising prevalence of overweight. This study aimed to address existing knowledge gaps and to identify priority policy options in Mongolia, the Philippines and Vietnam. A landscape analysis approach was adopted using methods set out in a UNICEF global toolkit. Quantitative and qualitative data were compiled from a range of global and national sources on childhood overweight and obesity, risk factors and policy responses. Key informant interviews and validation workshops were undertaken with key food and nutrition stakeholders from government and non-government organizations to identify priority policy options for the prevention of overweight and obesity among children. Overweight and obesity among children are increasing in all three countries. Associated risk factors are related to maternal nutrition, birthweight, breastfeeding, as well as diets and physical activity shaped by increasingly obesogenic environments. Key informants identified undefined policy approaches, poor community understanding and food and beverage industry influence as barriers to addressing overweight and obesity. Key policy priorities include restricting the marketing of unhealthy food and beverages, unhealthy food and beverage taxation, introduction of front-of-pack nutrition labels and improving school nutrition environments. Mongolia, the Philippines and Vietnam are all facing an increasing burden of childhood overweight and obesity. Despite differing national contexts, similar environmental factors are driving this rise. A suite of evidence-based policies can effectively be introduced to address obesogenic environments.

Food Parenting Practices Promoted by Childcare and Primary Healthcare Centers in Chile: What Influences Do These Practices Have on Parents? A Qualitative Study.

Chile, like many other countries in the world, is experiencing a high prevalence of childhood overweight. Among the factors influencing children's eating behaviors are the food parenting practices promoted by community organizations. More information is needed on the influences of these recommendations on the parenting practices of parents of preschoolers. This study examined what types of food parenting practices are promoted in childcare and primary healthcare centers and how these recommendations influence subsequent parental behavior. Interviews using photo-elicitation were conducted with 25 parents of Chilean preschoolers. The interviews were analyzed using inductive thematic analysis. Five themes were identified to describe food parenting practices promoted by community organizations and the influences that these practices had on parents of preschoolers. Healthcare centers were found to educate parents and provided a structured feeding. However, parents found their advice regarding dietary restriction challenging to follow. Childcare centers also provided information about healthy diet, food monitoring, and diversifying the child's diet in a way that was perceived as adequate. While childcare centers encouraged structured and autonomous food parenting practices in a positive and supportive manner, healthcare centers tended to provide more restrictive guidance that posed challenges for parents struggling with preschool nutritional care.

Childhood Overweight and Obesity in Turkey: A Developmental Origins of Health and Disease Perspective

Abstract&#x0D; Objective: Childhood overweight and obesity have seen a dramatic increase in Turkey and other middle-income countries. The goal of this study is to understand the role of adverse exposures during pregnancy and infancy on young children’s risk of developing overweight and obesity. &#x0D; Methods: Study uses four cross-sections of Turkish Demographic and Health Survey (DHS) between 1993 and 2008. Multilevel logistic modeling with random intercepts is applied to 5872 children between the ages of 2 and 5 in order to assess the main determinants of overweight and obesity. &#x0D; Results: Findings show that maternal obesity, fetal overnutrition, and lack of infant breastfeeding are significant determinants of children’s risk of overweight and obesity, and may in fact be more important than the typical socio-economic determinants of child health, such as maternal education and household wealth. Conclusion: Public health efforts to prevent childhood overweight and obesity would be incomplete without considerations of maternal health and nutrition at the time of conception and during pregnancy, and of proper infant nutrition.

Family-Based WhatsApp Intervention to Promote Healthy Eating Behaviors Among Amazonian School Children: Protocol for a Randomized Controlled Trial.

Stunting and micronutrient deficiencies have persistently affected children in the Brazilian Amazon for decades. However, in recent years, a notable increase in childhood overweight prevalence has been observed, particularly in the context of heightened food insecurity exacerbated by the COVID-19 pandemic. Despite the limited number of effective solutions proposed to tackle this problem, digital interventions have shown great promise worldwide in preventing obesity and promoting healthy diets. This study aims to describe the protocol of a family-based WhatsApp intervention, specifically designed to investigate the efficacy of multimedia messaging in preventing excessive weight gain and improving healthy eating practices among school-aged children in the Amazon region. This study protocol outlines a theory-driven randomized controlled trial based on the cognitive theory of multimedia learning and the social cognitive theory. A total of 240 parents or caregivers of children enrolled in the Maternal and Child Health and Nutrition Cohort Study in Acre (MINA-Brazil) will be recruited by phone and social media. The intervention group will receive persuasive multimedia messages through WhatsApp over 19 weeks, while the waitlist control group will remain in the usual care. The primary outcome is a change in children's BMI in z score. Secondary outcomes are changes in dietary intake and biochemical indicators of the children. Outcome measures will be assessed at baseline and 5 months after randomization in comparison to usual care. The analysis will use an intent-to-treat approach and will be conducted using the statistical package Stata (version 18.0), with a significance level set at P<.05. Paired and unpaired 2-tailed t tests will be applied to compare mean changes in the outcomes. Data collection started in June 2023, and final measurements are scheduled to be completed in December 2023. The results of the main analysis are expected to be available in 2024. This innovative multimedia message intervention holds significant potential for fostering behavioral changes among Amazonian children. Brazilian Clinical Trials Registry RBR-5zdnw6t; https://ensaiosclinicos.gov.br/rg/RBR-5zdnw6t. DERR1-10.2196/54446.

Type of delivery, birthweight, breastfeeding and overweight: the 2019 Italian results

Abstract Introduction According to recent studies, childhood obesity can be affected by type of delivery, birthweight and breastfeeding. The data from the surveillance system OKkio alla SALUTE, coordinated by the Italian National Institute of Health, have been used to investigate this association. OKkio alla SALUTE, promoted by the Italian Ministry of Health, is part of the WHO European Childhood Obesity Surveillance Initiative. Methods The study population are children aged 8 or 9 years in the third grade of all primary schools. A stratified cluster sample design, with class as the sampling unit, was used. Children were weighed and measured by trained local health staff and were classified as overweight or obese using the age and sex-specific International Obesity Task Force cut-offs. Parents of children completed a brief questionnaire to assess risk behavior, including information about the birth and the first few months of life of their child. Results In 2019, the sixth round of data collection involved 47,219 children and 50,370 parents with a response rate higher than 94%. 20.4% (95% CI 19.9-20.9) of 8-9 years old children were overweight and 9.4% (95% CI 9.0-9.7) were obese. The prevalence of obesity has decreased steadily since 2008 to 2019. The prevalence of overweight and obesity was higher for children born by caesarean section (33% vs 27% by vaginal childbirth), increased with birthweight (for birthweight &amp;gt;4,000 kg: 39.4% vs for birthweight&amp;lt;2,500 kg: 25.1%) and among children who had been breastfed never or less than 1 month (33.6% vs breastfeeding 6 months and above: 28.9%). Logistic regression analysis confirms the association between characteristics at birth/breastfeeding and overweight/ obesity. Conclusions Type of delivery, birth weight and breastfeeding seem to play a role in the prevalence of childhood overweight and obesity. Although these results may be affected by recall bias, this is unlikely to materially affect the results. Key messages • Type of delivery, birth weight and breastfeeding seem to play a role in the prevalence of childhood overweight and obesity. • Information on breastfeeding and other characteristics at birth that might be associated with overweight and obesity is essential for tracking progress in countries.

A literature review of evidence for primary prevention of overweight and obesity in healthy weight children and adolescents: A report produced by a working group of the Danish Council on Health and Disease Prevention.

Primary prevention targets development of overweight in individuals with healthy weight and is a great challenge. This paper summarizes the main findings of a working group of the Danish Council on Health and Disease Prevention that reviewed the literature on primary prevention of overweight and obesity among children and adolescents. The results were presented in a Danish report, in which a 2019 Cochrane review on childhood obesity prevention was complemented by searches in PubMed to include all relevant subsequent studies published from January 2018 until March 2020. In this paper, the review was updated until June 2023. Numerous childhood overweight prevention interventions have been developed during the past decades, primarily targeting diet and/or physical activity. Several of these interventions showed positive effects on diet and physical activity level but did not show effects on risk of developing overweight. The evidence foundation is inconsistent as four out of five interventions did not show positive effects. Previously observed intervention effects may not reflect excessive weight gain prevention among children with healthy weight but rather bodyweight reduction among those with overweight or obesity. We do not have sufficient knowledge about how to prevent children with healthy weight from developing overweight, and creative solutions are urgently needed.