Can targeted policies reduce obesity and improve obesity-related behaviours in socioeconomically disadvantaged populations? A systematic review.

This review synthesized evidence from controlled studies pertaining to the impact of targeted policies on anthropometric, dietary and physical activity outcomes amongst socioeconomically disadvantaged children and adults. Preferred Reporting Items for Systematic Reviews and Meta-Analyses-Equity guidelines were followed. Eligible studies were published from 2004 to August 2015 and examined the impact of targeted policies on anthropometric, dietary and physical activity outcomes amongst socioeconomically disadvantaged populations. Twenty articles (18 studies) were included. Eight studies examined organizational policies within multi-component interventions in schools. Common elements of successful policy-containing interventions included nutritional standards, enhancements to physical education, additional physical activity opportunities, school self-assessments, and nutrition and physical activity education. Of the 10 studies of government policies, policies providing information/education and fruit and vegetable subsidies had positive impacts amongst children, but no impact amongst adults. Policies involving changes to built environments yielded nearly uniformly null findings in children and adults. Overall, the largest quantity of high-quality evidence of effectiveness was for comprehensive interventions that included school policies, and government policies targeting disadvantaged children in schools. None of the government policies targeting disadvantaged adults proved effective. Interventions during childhood may ameliorate negative obesity-related manifestations of socioeconomic disadvantage. Gaps in knowledge remain surrounding effective policies in adults, adolescents and very young children.

How perceptions of community environment influence health behaviours: using the Analysis Grid for Environments Linked to Obesity Framework as a mechanism for exploration. / Perceptions à l'égard de l'environnement et comportements en matière de santé : étude fondée sur le cadre ANGELO (grille d'analyse des environnements liés à l'obésité).

INTRODUCTION: Overweight and obesity are influenced by a complex interplay of individual and environmental factors that affect physical activity and healthy eating. Nevertheless, little has been reported on people's perceptions of those factors. Addressing this critical gap and community partner needs, this study explored how people perceived the influence of micro- and macroenvironmental factors on physical activity and healthy eating. METHODS: Community partners wanted the study results in a format that would be readily and easily used by local decision makers. We used photovoice to engage 35 community members across four municipalities in Alberta, Canada, and to share their narratives about their physical activity and healthy eating. A combination of inductive and deductive analysis categorized data by environmental level (micro vs. macro) and type (physical, political, economic, and sociocultural), guided by the Analysis Grid for Environments Linked to Obesity Framework. RESULTS: Participants conceptualized health-influencing factors more broadly than physical activity and healthy eating to include "community social health." Participants spoke most often about the influence of the microenvironment (n = 792 ANGELO Framework coding tallies) on their physical activity, healthy eating and community social health in comparison to the macroenvironment (n = 93). Photovoice results provided a visual narrative to community partners and decision makers about how people's ability to make healthy choices can be limited by macroenvironmental forces beyond their control. CONCLUSION: Focussing future research on macro- and microenvironmental influences and localized community social health can inform practice by providing strategies on how to implement healthy changes within communities, while ensuring that research and interventions echo diverse people's perceptions.

INTRODUCTION: Le surpoids et l'obésité dépendent de l'interaction complexe entre facteurs liés à l'indivu et facteurs liés à l'environnement ayant une influence sur l'activité physique et une alimentation saine. Il existe pourtant peu d'information sur les perceptions des individus à l'égard de ces facteurs. Afin de combler cette lacune importante et de répondre aux besoins de nos partenaires des collectivités, nous examinons comment les individus perçoivent l'influence des facteurs micro- et macroenvironnementaux sur leur activité physique et leur alimentation. MÉTHODOLOGIE: Nos partenaires des collectivités souhaitaient que les résultats de l'étude soient diffusés dans un format facile à utiliser par les décideurs locaux. Avec la méthode photovoix, nous avons motivé 35 membres issus de quatre collectivités de l'Alberta (Canada) à fournir leurs témoignages à propos de leur activité physique et d'une alimentation saine. Nous avons employé une combinaison d'analyses inductives et déductives pour classer les données par niveau (micro et macro) d'environnement et par type (environnement physique, politique, économique et socioculturel), à l'aide de la Grille d'analyse des environnements liés à l'obésité (ANGELO). RÉSULTATS: Pour les participants, les facteurs liés à la santé étaient plus larges que l'activité physique et une alimentation saine, incluant la « santé sociocommunautaire ¼. Les participants ont parlé plus souvent de l'influence du microenvironnement (score de 792 après codage au moyen du cadre ANGELO) sur l'activité physique, une alimentation saine ou la santé sociocommunautaire que sur l'influence du macroenvironnement (score de 93). Les résultats obtenus avec la méthode photovoix ont fourni aux partenaires des collectivités et aux décideurs un témoignage visuel de la manière dont la capacité des individus à faire des choix sains peut être restreinte par des forces macroenvironnementales qui échappent à leur contrôle. CONCLUSION: Axer les recherches ultérieures sur les influences et macroenvironnementales et microenvironnementales ainsi que sur la santé sociocommunautaire locale sera utile, car cela alimentera les stratégies de changement en vue d'améliorer la santé des collectivités tout en garantissant que la recherche et les interventions font écho aux perceptions diverses de la population.

Can policy ameliorate socioeconomic inequities in obesity and obesity-related behaviours? A systematic review of the impact of universal policies on adults and children.

This systematic review examined the impact of universal policies on socioeconomic inequities in obesity, dietary and physical activity behaviours among adults and children. PRISMA-Equity guidelines were followed. Database searches spanned from 2004 to August 2015. Eligible studies assessed the impact of universal policies on anthropometric, dietary or physical activity-related outcomes in adults or children according to socioeconomic position. Thirty-six studies were included. Policies were classified as agentic, agento-structural or structural, and their impact on inequities was rated as positive, neutral, negative or mixed according to the dominant associations observed. Most policies had neutral impacts on obesity-related inequities regardless of whether they were agentic (60% neutral), agento-structural (68% neutral) or structural (67% neutral). The proportion of positive impacts was similar across policy types (10% agentic, 18% agento-structural and 11% structural), with some differences for negative impacts (30% agentic, 14% agento-structural and 22% structural). The majority of associations remained neutral when stratified by participant population, implementation level and socioeconomic position measures and by anthropometric and behavioural outcomes. Fiscal measures had consistently neutral or positive impacts on inequities. Findings suggest an important role for policy in addressing obesity in an equitable manner and strengthen the case for implementing a broad complement of policies spanning the agency-structure continuum.