Obesity Prevention: A Systematic Review of Setting-Based Interventions from Nordic Countries and the Netherlands

Improving the health of adolescents: the Nordic countries can help fill the evidence gap

While in the Nordic countries we have well-developed welfare policies and several structural, statutory measures in place aiming to promote public health, studies from these countries are often absent from systematic reviews of research literature assessing the effects of policy measures designed to promote health. Using adolescent health promotion and efforts related to primary prevention of obesity as an example, this short commentary aims to illustrate the paucity of well-designed studies investigating the effects of public health policies affecting adolescents. This paper argues that the Nordic research community is in a good position to help fill this gap, and to contribute more widely to the international literature on evaluation of policy interventions.

Ultra-processed food consumption and adult obesity risk: a systematic review and dose-response meta-analysis

We performed this systematic review and meta-analysis to evaluate observational studies assessing the association between ultra-processed food (UPF) consumption and the risk of overweight, obesity, and abdominal obesity in the general population. We searched the databases PubMed/MEDLINE, Scopus, Embase, and ISI Web of Science from inception until December 2020. Data were extracted from 12 studies (nine cross-sectional and three cohort studies). Odds ratio (OR) were pooled using a random-effects model. UPF consumption was associated with an increased risk of obesity (OR = 1.55; 95% CI: 1.36, 1.77; I² = 55%), overweight (OR = 1.36; 95% CI: 1.14, 1.63; I² = 73%), and abdominal obesity (OR = 1.41; 95% CI: 1.18, 1.68; I² = 62%). Furthermore, every 10% increase of UPF consumption in daily calorie intake was associated with a 7%, a 6%, and a 5% higher risk of overweight, obesity, and abdominal obesity, respectively. Dose-response meta-analysis of cross-sectional studies showed a positive linear association between UPF consumption and abdominal obesity. There was also a positive linear association between UPF consumption and risk of overweight/obesity in the analysis of cross-sectional studies and a positive monotonic association in the analysis of cohort studies. Our study suggests that UPF consumption is associated with an increased risk of excess weight or abdominal obesity.

The Effectiveness of School-Based Interventions on Obesity-Related Behaviours in Primary School Children: A Systematic Review and Meta-Analysis of Randomised Controlled Trials

School-based interventions are promising for targeting a change in obesity-related behaviours in children. However, the efficacy of school-based interventions to prevent obesity remains unclear. This review examined the effectiveness of school-based interventions at changing obesity-related behaviours (increased physical activity, decreased sedentary behaviour and improved nutrition behaviour) and/or a change in BMI/BMI z-score. Following PRISMA guidelines, seven databases were systematically searched from 1 January 2009 to 31 December 2020. Two review authors independently screened studies for eligibility, completed data extraction and assessed the risk of bias of each of the included studies. Forty-eight studies met the inclusion criteria and were included in a narrative synthesis. Thirty-eight studies were eligible for inclusion in a meta-analysis. The findings demonstrate that interventions in children when compared to controls resulted in a small positive treatment effect in the control group (2.14; 95% CI = 0.77, 3.50). There was no significant effect on sedentary behaviour, energy intake and fruit and vegetable intake. Significant reductions were found between groups in BMI kg/m2 (-0.39; 95% CI = -0.47, -0.30) and BMI z-score (-0.05; 95% CI = -0.08, -0.02) in favour of the intervention. The findings have important implications for future intervention research in terms of the effectiveness of intervention components and characteristics.

The delivery of obesity interventions to children and adolescents with physical disabilities: a systematic review

BACKGROUND

To examine the process and mechanisms of delivering obesity interventions to physically disabled children/adolescents.

METHODS

PubMed, Medline, CINAHL Plus, Embase, Cochrane Library, Google Scholar, ClinicalTrials.gov, Science Direct were systematically and manually searched for studies conducted in physically disabled children/adolescents (0-18 years). Included interventions were physical activity, diet and obesity prevention education. Included outcomes were body mass index (BMI)/weight and obesity prevention knowledge. The Mixed Methods Appraisal Tool aided methodological quality assessments. Data were extracted and delivery models were synthesized and narratively summarized using the social ecological model.

RESULTS

Seven studies of low (n = 4) and moderate (n = 3) scoring on methodological quality were eligible for inclusion. Study duration was 5 months or less (n = 5), 8 months (n = 1) and 2 years (n = 1). Interventions were delivered at home, school, hospital and rehabilitation centre through the internet, face-to-face and parents. No intervention was delivered at three or more levels of individual, interpersonal, institutional or community levels. No study reported significant outcomes on reduction in BMI/weight, or increase in obesity prevention knowledge.

CONCLUSIONS

Evidence reviewed in this study shows that obesity interventions for physically disabled children/adolescents lack both in delivery and design. Gaps revealed should be considered when developing interventions for this special population.

National and Local Strategies in the Netherlands for Obesity Prevention and Management in Children and Adolescents

BACKGROUND

As in many other countries around the world, the Netherlands has a high prevalence of overweight and obesity in children. About 1 in 7 of children aged 2-19 years has either overweight or obesity.

SUMMARY

In this paper the national and local activities aimed at the prevention and management of obesity in children and adolescents in the Netherlands are reviewed. It is recommended to, nationally as well as locally, take an integrated-systems approach that tackles the obesogenic food environment as well as upstream and downstream determinants of obesity. Efforts should take a life course approach and be focused on promoting obesity prevention as well as improving the management of children who already have obesity. The national policies in the Netherlands rely heavily on self-regulation by stakeholders such as supermarkets, restaurants, and the food industry. Local policies and actions such as the whole-systems approach in Amsterdam are promising. Future directions include development of tools for the operationalization and evaluation of local systems approaches. Regulation by national and local governments is necessary to ensure a healthy food environment for children and their families, but health policies require intersectoral action. Key Messages: In the Netherlands many policies are in place or under development, especially at the municipal level (e.g., in Amsterdam), but more substantial action is urgently required.

What should governments be doing to prevent diabetes throughout the life course?

Health systems and governments are increasingly required to implement measures that target at-risk populations to prevent noncommunicable diseases. In this review we lay out what governments should be doing to prevent diabetes throughout the life course. The following four target groups were used to structure the specific recommendations: (1) pregnant women and young families, (2) children and adolescents, (3) working age population, and (4) the elderly. The evidence to date supports the effectiveness of some known government policy measures, such as sugar taxes and regulatory measures in the (pre-)school setting for children and adolescents. Many of these appear to be more effective if they are part of a bundle of strategies and if they are supplemented by communication strategies. Although there is a current focus on strategies that target the individual, governments can make use of evidence-based population-level prevention strategies. More research and continuous evaluation of the overall and subgroup-specific effectiveness of policy strategies using high-quality longitudinal studies are needed.

Health Promotion and Obesity in the Arab Gulf States: Challenges and Good Practices

This debate paper focuses on available strategies, policies, and challenges of health promotion for combating obesity in the Arab Gulf states (Saudi Arabia, Bahrain, Kuwait, Oman, and Qatar). The paper focuses on the abovementioned countries due to their similarity on many aspects and because of their alarming obesity rates that are on the rise and keep increasing. The paper argues that there are significant efforts to be made in sectors such as policies, intersectoral work, primary healthcare, health promotion strategies development, and qualified personnel for health promotion and health education. Among the six states, Qatar, United Arab Emirates, and to a degree Oman have shown some development with regard to the implementation and evaluation of obesity-related health promotion policies, and thus other Arab Gulf countries could be inspired by existing good practices and move from good intentions to using their available wealth to invest in the implementation and evaluation of published policies and strategies. All Arab Gulf countries are in need of more qualified personnel and the development of infrastructure that can help tackle the growing obesity challenge that such countries are experiencing.