Reduced Prevalence of Obesity in 14 Disadvantaged Black Communities in the United States: A Successful 4-Year Place-Based Participatory Intervention

Advancing Health Equity Efforts to Reduce Obesity: Changing the Course

Population-based solutions are needed to stabilize and then reverse the continued upward trends in obesity prevalence in the US population and worldwide. This review focuses on the related, urgent issue of disparities in obesity prevalence affecting US racial/ethnic minority and other socially marginalized populations. The review provides background on these disparities from a health equity perspective and highlights evidence of progress in equity-focused obesity efforts. Five recommendations for advancing equity efforts are offered as potential approaches to build on progress to date: (a) give equity issues higher priority, (b) adopt a health equity lens, (c) strengthen approaches by using health equity frameworks, (d) broaden the types of policies considered, and (e) emphasize implementation science concepts and tools. Potential challenges and opportunities are identified, including the prospect of longer-term, transformative solutions that integrate global and national initiatives to address obesity, undernutrition, and climate change.

A Population Health Assessment in a Community Cancer Center Catchment Area: Triple negative breast cancer, alcohol use, and obesity in New Castle County, Delaware

BACKGROUND

The National Cancer Institute (NCI) requires designated cancer centers to conduct catchment area assessments to guide cancer control and prevention efforts designed to reduce the local cancer burden. We extended and adapted this approach to a community cancer center catchment area with elevated rates of triple negative breast cancer (TNBC).

METHODS

Cancer registry data for 462 TNBC and 2,987 Not-TNBC cases diagnosed between 2012 and 2020 at the Helen F. Graham Cancer Center & Research Institute (HFGCCRI), located in New Castle County, Delaware, were geocoded to detect areas of elevated risk ('hot spots') and decreased risk ('cold spots'). Next, electronic health record (EHR) data on obesity and alcohol use disorder (AUD) and catchment-area measures of fast-food and alcohol retailers were used to assess for spatial relationships between TNBC hot spots and potentially modifiable risk factors.

RESULTS

Two hot and two cold spots were identified for TNBC within the catchment area. The hot spots accounted for 11% of the catchment area but nearly a third of all TNBC cases. Higher rates of unhealthy alcohol use and obesity were observed within the hot spots.

CONCLUSIONS

The use of spatial methods to analyze cancer registry and other secondary data sources can inform cancer control and prevention efforts within community cancer center catchment areas, where limited resources can preclude the collection of new primary data.

IMPACT

Targeting community outreach and engagement activities to TNBC hot spots offers the potential to reduce the population-level burden of cancer efficiently and equitably.

Outcomes of a Community-Wide Health Intervention in a Low-Income, Primarily Hispanic Community: The Go! Austin/Vamos! Austin (GAVA) Initiative

OBJECTIVES

To describe outcomes of a 4-year physical activity (PA) and nutrition intervention (2013-2017) in Dove Springs, a low-income urban community in Texas.

METHOD

Go! Austin/Vamos! Austin is a place-based intervention targeting the built and social environments of PA and nutrition. Baseline and follow-up measures related to PA and nutrition were obtained from 357 parent-child dyads (final n = 236) in the intervention community and a control community. A three-level dose of exposure measure was created to indicate the amount of exposure to intervention activities across the 4 years. Pre-post changes in key outcomes by level of exposure and contrasts across "high exposure" and "no exposure" categories were obtained using repeated-measures regression, adjusting for important confounders.

RESULTS

"High exposure" adult participants showed consistently more favorable changes than "no exposure" participants across a variety of indicators, including positive perceptions and utilization of community PA resources, amount of moderate PA, utilization of retail outlets offering fresh produce, and measures of healthy eating. Few improvements were seen in child-level outcomes.

CONCLUSIONS

Community interventions can successfully improve health-promoting behaviors provided they ensure sufficient dose of exposure.

A Framework for Increasing Equity Impact in Obesity Prevention

One of the most pressing unmet challenges for preventing and controlling epidemic obesity is ensuring that socially disadvantaged populations benefit from relevant public health interventions. Obesity levels are disproportionately high in ethnic minority, low-income, and other socially marginalized US population groups. Current policy, systems, and environmental change interventions target obesity-promoting aspects of physical, economic, social, and information environments but do not necessarily account for inequities in environmental contexts and, therefore, may perpetuate disparities.I propose a framework to guide practitioners and researchers in public health and other fields that contribute to obesity prevention in identifying ways to give greater priority to equity issues when undertaking policy, systems, and environmental change strategies. My core argument is that these approaches to improving options for healthy eating and physical activity should be linked to strategies that account for or directly address social determinants of health.I describe the framework rationale and elements and provide research and practice examples of its use in the US context. The approach may also apply to other health problems and in countries where similar inequities are observed.

Racial and Ethnic Differences in Obesity in People With Spinal Cord Injury: The Effects of Disadvantaged Neighborhood

OBJECTIVE

To examine the role of neighborhood in the relation between race and obesity in people with spinal cord injury (SCI).

DESIGN

A cross-sectional analysis of survey data from National SCI Database linked with neighborhood data from American Community Survey by census tract.

SETTING

A total of 17 SCI Model Systems centers.

PARTICIPANTS

Individuals (N=3385; 2251 non-Hispanic whites, 760 non-Hispanic blacks, 374 Hispanics) who completed a follow-up assessment during 2006-2017 (mean duration of injury, 8.3±9.9y) and resided in 2934 census tracts.

INTERVENTION

Not applicable.

MAIN OUTCOME MEASURES

Body mass index (BMI) (kg/m2).

RESULTS

The overall prevalence of obesity was 52.9% (BMI≥25.0) and 23.3% (BMI≥30.0). Hispanics were 67.0% more likely to be obese (BMI≥30.0 kg/m2) relative to non-Hispanic whites (odds ratio, 1.67; 95% confidence interval, 1.27-2.18), after controlling for demographic and injury-related characteristics. Most of the non-Hispanic blacks (66.8%) were living in neighborhoods with high concentrated disadvantaged index (CDI), compared to 35.0% of Hispanics and 9.2% of non-Hispanic whites living in this similar neighborhood status (P<.0001). After accounting for CDI, the odds of being obese in Hispanics decreased (odds ratio, 1.51; 95% confidence interval, 1.15-1.99). Regardless of race and ethnicity, people with SCI from disadvantaged neighborhoods were 42.0%-70.0% more likely to be obese than those from minimal CDI neighborhoods.

CONCLUSIONS

Neighborhood characteristics partially diminish racial differences in obesity. Weight management for the SCI population should target those who are Hispanic and living in the disadvantaged neighborhoods.

Overcoming Inequities in Obesity: What Don't We Know That We Need to Know?

Efforts to combat the U.S. obesity epidemic have been ongoing in earnest for nearly two decades, informed by a substantial body of knowledge and guided by numerous programmatic and policy recommendations. Yet, although there are some bright spots, I sense frustration in the public health community with the overall lack of clear progress in lowering high obesity prevalence. The fact that something is missing from current approaches is undeniable and must be a continued source of inquiry. This commentary focuses attention on an aspect that is especially concerning-inequities that predispose to a notably higher obesity prevalence in U.S. racial/ethnic minority populations compared with non-Hispanic Whites. Critical analyses of what we are doing now can point the way to improvements in both individually oriented and policy, systems, and environmental change strategies to overcome the epidemic. Success will require working with communities to co-design relevant and realistic interventions as well as broader social changes that address underlying causes.

A Narrative Review of Physician Perspectives Regarding the Social and Environmental Determinants of Obesity

PURPOSE OF REVIEW

Diet-related chronic diseases result from individual and non-individual (social, environmental, and macro-level) factors. Recent health policy trends, such as population health management, encourage assessment of the individual and non-individual factors that cause these diseases. In this review, we evaluate the physician's perspective on the individual and non-individual causes and management of obesity.

RECENT FINDINGS

Physicians generally rated individual-level causes (i.e., biology, psychology, and behavior) as more important than social or environmental factors in the development of obesity, and utilized individual-level strategies over social or environmental strategies to manage obesity. This review suggests that clinicians perceive individual characteristics to be more important in the development and management of obesity than social or environmental factors. Additional research is needed to understand why.