Validation of the Measurement Approaches to Partnership Success (MAPS) Questionnaire

Conceptualizing and testing factors that contribute to the success of community-academic partnerships are critical to understanding their contributions to the health and well-being of communities. Most measures to date focus on factors that contribute to the development of new partnerships, and only a few have been adequately tested and validated. Methods. The Measurement Approaches to Partnership Success (MAPS) study followed a community-based participatory research (CBPR) approach and a multiphase process that included the construction and pilot testing of a questionnaire, and a national survey to validate the psychometric properties of the questionnaire in long-standing CBPR partnerships (existing ≥ six years). All members within partnerships were recruited to complete the survey (55 partnerships with 563 partners). We used confirmatory factor analysis (CFA), Cronbach's alpha statistics, and a pairwise correlations approach to assess discriminant and convergent validity, and assessed internal consistency, and test-retest reliability. Results. All MAPS Questionnaire dimensions demonstrated strong validity and reliability and demonstrated agreement over time. Conclusion. The MAPS Questionnaire includes seven dimensions and 81 items related to the MAPS conceptual model and provides a scientific, in-depth measurement tool that allows long-standing CBPR partnerships to evaluate their work toward achieving health equity.

Antiracist Research and Practice for Environmental Health: Implications for Community Engagement

BACKGROUND

Communities who experience disproportionate environmental exposures and associated adverse health outcomes have long been aware of, and worked to draw attention to, the role of racism in shaping those risks. A growing number of researchers are focusing on racism as a fundamental driver of racial inequities in environmental health. Importantly, several research and funding institutions have publicly committed to addressing structural racism within their organizations. These commitments highlight structural racism as a social determinant of health. They also invite reflection on antiracist approaches to community engagement in environmental health research.

OBJECTIVES

We discuss strategies for taking more explicitly antiracist approaches to community engagement in environmental health research.

DISCUSSION

Antiracist (as opposed to nonracist, color-blind, or race-neutral) frameworks entail thinking or acting in ways that explicitly question, analyze, and challenge policies and practices that produce or sustain inequities between racial groups. Community engagement is not inherently antiracist. There are, however, opportunities for extending antiracist approaches when engaging communities who are disproportionately harmed by environmental exposures. Those opportunities include a) promoting leadership and decision-making power by representatives from harmed communities, b) centering community priorities in identifying new research areas, and c) translating research into action by applying knowledge from multiple sources to disrupt policies and practices that create and sustain environmental injustices. https://doi.org/10.1289/EHP11384.

Historic Redlining Practices and Contemporary Determinants of Health in the Detroit Metropolitan Area

Objectives. To examine how redlining, a historical racially discriminatory housing policy implemented by the Home Owners' Loan Corporation (HOLC), is associated with current neighborhood determinants of health in the Detroit Metropolitan Area. Methods. We analyzed associations between census tract‒level HOLC color grades (red = "hazardous"; yellow = "declining"; blue = "desirable"; and green = "best") and a developed neighborhood determinants of health index (DOHI) consisting of 8 indicators of economic, social, governance, and physical environment characteristics using spatial regression analysis and controlling for change in the census tract's percentage of White residents. Results. A total of 484 Detroit Metropolitan Area census tracts had HOLC grades. The mean redlining score across all census tracts was 3.02 (min = 1.0; max = 4.0). The mean contemporary DOHI was 19.11 (min = 8.0; max = 36.0). Regression models show significantly higher DOHI scores in yellowlined (b = 2.71; 95% confidence interval [CI] = 1.52, 3.91), bluelined (b = 5.33; 95% CI = 3.65, 7.01), and greenlined (b = 9.25; 95% CI = 6.86, 11.64) neighborhoods compared with redlined neighborhoods. Conclusions. Historical redlined neighborhoods experience contemporary determinants of health conditions that are less conducive to health compared with those in nonredlined neighborhoods. These differences also reflect the accumulation of resources essential for health in greenlined neighborhoods. Public Health Implications. Neighborhood development initiatives should consider the impacts of historical redlining on contemporary neighborhood conditions. (Am J Public Health. 2023;113(S1): S49-S57. https://doi.org/10.2105/AJPH.2022.307162).

Antiracism and Community-Based Participatory Research: Synergies, Challenges, and Opportunities

Structural racism causes stark health inequities and operates at every level of society, including the academic and governmental entities that support health research and practice. We argue that health research institutions must invest in research that actively disrupts racial hierarchies, with leadership from racially marginalized communities and scholars. We highlight synergies between antiracist principles and community-based participatory research (CBPR), examine the potential for CBPR to promote antiracist research and praxis, illustrate structural barriers to antiracist CBPR praxis, and offer examples of CBPR actions taken to disrupt structural racism. We make recommendations for the next generation of antiracist CBPR, including modify health research funding to center the priorities of racially marginalized communities, support sustained commitments and accountability to those communities by funders and research institutions, distribute research funds equitably across community and academic institutions, amplify antiracist praxis through translation of research to policy, and adopt institutional practices that support reflection and adaptation of CBPR to align with emergent community priorities and antiracist practices. A critical application of CBPR principles offers pathways to transforming institutional practices that reproduce and reinforce racial inequities. (Am J Public Health. 2023;113(1):70-78. https://doi.org/10.2105/AJPH.2022.307114).

"They Kept Going for Answers": Knowledge, Capacity, and Environmental Health Literacy in Michigan's PBB Contamination

The Michigan PBB Oral History Project documented community residents' descriptions of a large-scale chemical contamination-the PBB contamination-that occurred in Michigan in 1973. These oral histories document residents' and others' experiences during and after the contamination. We conducted a grounded theory qualitative analysis of 31 oral histories to examine the experiences of community members, researchers, lawyers, and others who actively sought out and contributed essential information about the contamination and its impacts. Our findings highlight several challenges encountered in the development of this knowledge including four central themes-contested knowledge, community skills, inaction, and uncertainty. Integrating environmental health literacy, community capacity, and contested illness frameworks, we examine the contributions of community residents, scientists (from inside and outside the community), and others to the development of knowledge to inform decisions and sustain action regarding this large-scale contamination. We close with a discussion of lessons learned regarding efforts to build environmental health knowledge within uncertain and often contested contexts and for promoting environmental health and action related to large-scale chemical contaminations. Our findings suggest the importance of integrated frameworks for examining and promoting the critical role of community skills, leadership, participation, sense of community, and community power in promoting environmental health.

The Return of Race Science and Why It Matters for Family Science

Race science attributes differences in human populations to biology and genetics that reflect a hierarchy of human races with whiteness at its pinnacle. This article examining the history of race science and current family scholarship and practice contends that race science matters for family science. We discuss 1) white supremacy, the development of race science, and the eugenics movement in the U.S.; 2) racism, racialized experiences, and oppression of Black families in the U.S.; 3) the construction of whiteness in family science and re-envisioning theories to make racism's impact visible; 4) racial reckonings for professional organizations; and 5) why race science matters for family science and a call to action. Clarity about the meaning of race can ensure that family science addresses white supremacy and racism embedded in scholarship, training, and practice, and promotes work that supports the well-being of families that are most vulnerable and marginalized.

Mexican-Origin Women's Construction and Navigation of Racialized Identities: Implications for Health Amid Restrictive Immigrant Policies

This study examines how Mexican-origin women construct and navigate racialized identities in a postindustrial northern border community during a period of prolonged restrictive immigration and immigrant policies, and it considers mechanisms by which responses to racialization may shape health. This grounded theory analysis involves interviews with 48 Mexican-origin women in Detroit, Michigan, who identified as being in the first, 1.5, or second immigrant generation. In response to institutions and institutional agents using racializing markers to assess their legal status and policing access to health-promoting resources, women engaged in a range of strategies to resist being constructed as an "other." Women used the same racializing markers or symbols of (il)legality that had been used against them as a malleable set of resources to resist processes of racialization and to form, preserve, and affirm their identities. These responses include constructing an authorized immigrant identity, engaging in immigration advocacy, and resisting stigmatizing labels. These strategies may have different implications for health over time. Findings indicate the importance of addressing policies that promulgate or exacerbate racialization of Mexican-origin communities and other communities who experience growth through migration. Such policies include creating pathways to legalization and access to resources that have been invoked in racialization processes, such as state-issued driver's licenses.

Housing status, mortgage debt and financial burden as barriers to health among older adults in the U.S

We examine relations between housing status, mortgage, financial burden, and healthy aging among older U.S. adults. We combine cross-sectional data from 2012 to 2014 Health and Retirement Study cohorts. Using regression models, we examined associations between owners and renters, mortgage and non-mortgage holders, financial strain, and difficulty paying bills, and poor self-rated health (SRH), heart condition (HC) and hospitalization (past two years). We find that compared to owners, renters had greater likelihood of poor SRH and hospitalization. Regardless of tenure, financial strain was associated with greater likelihood of poor SRH, HC and hospitalization, while difficulty paying bills was associated with poor SRH and HC. Mortgage holders had lower likelihood of poor SRH. Accounting for mortgage status, financial strain was associated with greater likelihood of poor SRH, HC and hospitalization, while difficulty paying bills was associated with poor SRH and HC. Associations between tenure or mortgage status and health were not modified by either financial burden factors. We conclude that there need to be more robust and inclusive programs that assist older populations with housing could improve self-rated health, with particular attention to renters, mortgage holders and those experiencing financial burden.

Policing Is a Public Health Issue: The Important Role of Health Educators

For decades, marginalized communities have been naming the harms of policing-and the systemic racism that undergirds it-for health and well-being. Only recently have policing practices and racism within policing gained more widespread attention in public health. Building on social justice and emancipatory traditions in health education, we argue that health educators are uniquely prepared to use the evidence base to reframe narratives that drive aggressive policing and their disproportionate impacts on communities of color, promote disinvestment in militarized policing, and build relationships with community-based organizations and community organizers developing community-centered approaches to safety. Using public health institutions and institutions of higher education as examples, we suggest specific strategic actions that health educators can take to address policing as a public health issue. Health educators are uniquely poised to work with diverse community and institutional partners to support social movements that create community-centered, equitable approaches to public safety and health.

Independent and joint contributions of economic, social and physical environmental characteristics to mortality in the Detroit Metropolitan Area: A study of cumulative effects and pathways

OBJECTIVE

Previous studies have demonstrated associations between race-based residential segregation, neighborhood socioeconomic and physical environmental characteristics, and mortality. Relatively few studies have examined independent and joint effects of these multiple neighborhood characteristics and mortality, including potential mediating pathways. In this study we examine the extent to which associations between race-based residential segregation and all-cause mortality may be explained by multiple socioeconomic indicators and exposure to air pollutants.

METHODS

Drawing on data from multiple sources, we assessed bivariate associations between race-based residential segregation (operationalized as percent non-Hispanic Black), education (percent with graduate equivalency degree), poverty (percent below poverty), income inequality (GINI coefficient) and air pollution (ambient PM2.5) and age adjusted all-cause, all race mortality (henceforth all cause mortality) at the census tract level in the Detroit Metropolitan Area. We used inequality curves to assess the (in)equitable distribution of economic and environmental characteristics by census tract racial composition. Finally, we used generalized estimating equations (GEE) to examine independent and joint associations among percent NHB, education, income inequality, and air pollution to all-cause mortality, and test for mediating effects.

RESULTS

Bivariate associations between racial composition, education, poverty, income inequality, PM2.5 and all-cause mortality were statistically significant. Census tracts with higher concentrations of NHB residents had significantly lower educational attainment, higher poverty, and greater exposure to PM2.5. In multivariate models, education, income inequality and PM2.5 fully attenuated associations between racial composition and all-cause mortality.

CONCLUSIONS

Results are consistent with the hypothesis that race-based residential segregation is associated with heightened all-cause mortality, and that those effects are mediated by education, income inequality, and exposure to air pollution at the census tract level. Public health and cross-sector interventions to eliminate race-based residential segregation or to eliminate the maldistribution of educational and economic resources, and environmental exposures, across census tracts could substantially reduce regional inequities in all-cause mortality.

Moving Health Education and Behavior Upstream: Lessons From COVID-19 for Addressing Structural Drivers of Health Inequities

In this Perspective, we build on social justice and emancipatory traditions within the field of health education, and the field's long-standing commitment to building knowledge and shared power to promote health equity, to examine lessons and opportunities for health education emerging from the COVID-19 pandemic. Examining patterns that emerged as the pandemic unfolded in Metropolitan Detroit, with disproportionate impacts on African American and low-income communities, we consider conditions that contributed to excess exposure, mortality, and reduced access to critical health protective resources. Using a life course framework, we consider enduring impacts of the pandemic for health equity. Finally, we suggest several strategic actions in three focal areas-environment, occupation, and housing-that can be taken by health educators working in partnership with community members, researchers, and decision makers, using, for example, a community-based participatory research approach, to reduce adverse impacts of COVID-19 and promote long-term equity in health.

South African abortion attitudes from 2007-2016: the roles of religiosity and attitudes toward sexuality and gender equality

Abortion is legal in South Africa, but negative abortion attitudes remain common and are poorly understood. We used nationally representative South African Social Attitudes Survey data to analyze abortion attitudes in the case of fetal anomaly and in the case of poverty from 2007 to 2016 (n = 20,711; ages = 16+). We measured correlations between abortion attitudes and these important predictors: religiosity, attitudes about premarital sex, attitudes about preferential hiring and promotion of women, and attitudes toward family gender roles. Abortion acceptability for poverty increased over time (b = 0.05, p < .001), but not for fetal anomaly (b = -0.008, p = .284). Highly religious South Africans reported lower abortion acceptability in both cases (Odds Ratio (OR)_anomaly = 0.85, p = .015; OR_poverty = 0.84, p = .02). Premarital sex acceptability strongly and positively predicted abortion acceptability (OR_anomaly = 2.63, p < .001; OR_poverty = 2.46, p < .001). Attitudes about preferential hiring and promotion of women were not associated with abortion attitudes, but favorable attitudes about working mothers were positively associated with abortion acceptability for fetal anomaly ((OR_anomaly = 1.09, p = .01; OR_poverty = 1.02, p = .641)). Results suggest negative abortion attitudes remain common in South Africa and are closely tied to religiosity, traditional ideologies about sexuality, and gender role expectations about motherhood.

Impact of change over time in self-reported discrimination on blood pressure: implications for inequities in cardiovascular risk for a multi-racial urban community

Objectives: The 21st century has seen a rise in racism and xenophobia in the United States. Few studies have examined the health implications of heightened institutional and interpersonal racism. This study examines changes in reported discrimination and associations with blood pressure over time among non-Latino Blacks (NLBs), Latinos, and non-Latino Whites (NLWs) in an urban area, and variations by nativity among Latinos.Design: Data from a probability sample of NLB, Latino, and NLW Detroit, Michigan residents were collected in 2002-2003, with follow-up at the same addresses in 2007-2008. Surveys were completed at 80% of eligible housing units in 2008 (n = 460). Of those, 219 participants were interviewed at both time points and were thus included in this analysis. Discrimination patterns across racial/ethnic groups and associations with blood pressure were examined using generalized estimating equations.Results: From 2002 to 2008, NLBs and Latinos reported heightened interpersonal and institutional discrimination, respectively, compared with NLWs. There were no differences in associations between interpersonal discrimination and blood pressure. Increased institutional discrimination was associated with stronger increases in systolic and diastolic blood pressure for NLBs than NLWs, with no differences between Latinos and NLWs. Latino immigrants experienced greater increases in blood pressure with increased interpersonal and institutional discrimination compared to US-born Latinos.Conclusions: Together, these findings suggest that NLBs and Latinos experienced heightened discrimination from 2002 to 2008, and that increases in institutional discrimination were more strongly associated with blood pressure elevation among NLBs and Latino immigrants compared to NLWs and US-born Latinos, respectively. These findings suggest recent increases in discrimination experienced by NLBs and Latinos, and that these increases may exacerbate racial/ethnic health inequities.

Applying Experiential Action Learning Pedagogy to an Intensive Course to Enhance Capacity to Conduct Community-Based Participatory Research

Community-based participatory research (CBPR) is widely recognized as an effective approach to understand and address health inequities. Opportunities for public health practitioners and researchers to engage jointly with community partners in intensive colearning processes can build capacity for CBPR. Using active learning approaches that engage diverse partners can enhance partnership development, competence, and equity. Examination of such pedagogical approaches can strengthen understanding of their contributions to the effectiveness of CBPR capacity-building programs. This article describes a weeklong intensive course carried out by the Detroit Urban Research Center as the foundation for a yearlong training program to build the capacity of community-academic partnership teams to engage in CBPR in their own communities. The in-person CBPR course was developed and implemented by expert academic and community instructors and used an experiential action learning model that integrated CBPR principles and processes. We describe the course content and application of our collaborative, experiential action learning model to course design; present results from participant evaluation of course effectiveness, CBPR competence, and equitable partnership development; and examine the contributions of the pedagogical approach to outcomes central to successful CBPR. The participatory, formative course evaluation used multiple methods that included closed- and open-ended questionnaires to assess instructional effectiveness, participant competence on 12 core components of CBPR, and course impact on partner relationships. Evaluation findings suggest that an experiential action learning approach with attention to colearning, collaboration among diverse instructors and participants, and an environment that fosters and models equitable and trusting relationships can be effective in building CBPR capacity.

MI-Environment: Geospatial patterns and inequality of relative heat stress vulnerability in Michigan

Heat stress causes morbidity and mortality and is increasing with climate change. Heat stress can pose particular challenges in northern regions not well adapted to heat. To assist decision makers, we identified the relative vulnerability of census tracts within Michigan to factors that increase exposure to heat stress or reflect susceptibilities in the population based on a California heat vulnerability index. In the MI-Environment assessment, we used a Geographic Information System (GIS) to combine future ensemble climate model projections to create a total of 9 geospatial and demographic variables. As part of a broader planned cumulative environmental exposure assessment, the statewide heat vulnerability index (HVI) maps display the location and relative magnitude of exposure on three metrics: built environment (Place), future expected long-term temperature averages (Temperature), and population susceptibility (People). We observed varied and distinct patterns for each of the three component indices. We assessed how equitably those exposures are distributed by racial and socioeconomic factors. This analysis showed that each of the component indices and the aggregate HVI are disproportionately distributed along racial and socioeconomic lines in Michigan. Census tracts with higher percentages of people of color had larger exposure to HVI factors with a deviation from equity of -0.115 [95% CI -0.108, -0.122]. Similarly, for census tracts with higher percentage of people experiencing poverty, the deviation from equity was -0.101 [95% CI -0.094, -0.107]. The MI-Environment visualization tool can help communities prepare for climate change and resolve inequities by identifying census tracts with the most vulnerable residents and highest potential exposures.

Enhancing Capacity of Community-Academic Partnerships to Achieve Health Equity: Results From the CBPR Partnership Academy

Community-based participatory research (CBPR) is an equitable partnership approach that links academic researchers, community organizations, and public health practitioners to work together to understand and address health inequities. Although numerous educational materials on CBPR exist, few training programs develop the skills and knowledge needed to establish effective, equitable partnerships. Furthermore, there are few professional development opportunities for academic researchers, practitioners, and community members to obtain these competencies in an experiential co-learning process. In response, the Detroit Community-Academic Urban Research Center developed the CBPR Partnership Academy, an innovative, yearlong capacity-building program facilitated by experienced community and academic partners, involving an intensive short course, partnership development, grant proposal preparation and funding, mentoring, online learning forums, and networking. Three diverse cohorts (36 teams) from 18 states and 2 tribal nations have participated. We describe the rationale and components of the training program and present results from the first two cohorts. Evaluation results suggest enhanced competence and efficacy in conducting CBPR. Outcomes include partnerships established, grant proposals submitted and funded, workshops and research conducted, and findings disseminated. A community-academic partner-based, integrated, applied program can be effective for professional development and establishing innovative linkages between academics and practitioners aimed at achieving health equity.

The Epidemiology of Coping in African American Adults in the Jackson Heart Study (JHS)

Differences in coping within the African American population are not well understood, yet these differences may be critical to reducing stress, improving health, and reducing racial health disparities. Using a descriptive, exploratory analysis of the Jackson Heart Study (N = 5301), we examine correlations between coping responses and associations between coping and demographic, socioeconomic, psychosocial, and neighborhood factors. Overall, coping responses were not strongly correlated and patterns of associations between covariates and coping responses were largely inconsistent. The results suggest that coping varies substantially within this African American population and is driven mainly by psychosocial factors such as spirituality and interpersonal support. Understanding these complex relationships may inform strategies by which to intervene in the stress process to mitigate the effects of stress on health and to identify vulnerable subgroups of African Americans that might need targeted interventions to reduce exposure to stressors and improve coping capacities.

A conceptual framework for evaluating health equity promotion within community-based participatory research partnerships

Community-based participatory research (CBPR) approaches present strong opportunities to promote health equity by improving health within low-income communities and communities of color. CBPR principles and evaluation frameworks highlight an emphasis on equitable group dynamics (e.g., shared leadership and power, participatory decision-making, two-way open communication) that promote both equitable processes within partnerships and health equity in the communities with whom they engage. The development of an evaluation framework that describes the manner in which equitable group dynamics promote intermediate and long-term equity outcomes can aid partners in assessing their ability to work together effectively and improve health equity in the broader community. CBPR principles align with health equity evaluation guidelines recently developed for Health Impact Assessments (HIAs), which emphasize meaningful engagement of communities in decision-making processes that influence their health. In this paper, we propose a synergistic framework integrating contributions from CBPR and HIA evaluation frameworks in order to guide efforts to evaluate partnership effectiveness in addressing health inequities. We suggest specific indicators that might be used to assess partnership effectiveness in addressing health equity and discuss implications for evaluation of partnership approaches to address health equity.

Urban HEART Detroit: a Tool To Better Understand and Address Health Equity Gaps in the City

The Urban Health Equity Assessment Response Tool (Urban HEART) combines statistical evidence and community knowledge to address urban health inequities. This paper describes the process of adopting and implementing this tool for Detroit, Michigan, the first city in the USA to use it. The six steps of Urban HEART were implemented by the Healthy Environments Partnership, a community-based participatory research partnership made up of community-based organizations, health service providers, and researchers based in academic institutions. Local indicators and benchmarks were identified and criteria established to prioritize a response plan. We examine how principles of CBPR influenced this process, including the development of a collaborative and equitable process that offered learning opportunities and capacity building among all partners. For the health equity matrix, 15 indicators were chosen within the Urban HEART five policy domains: physical environment and infrastructure, social and human development, economics, governance, and population health. Partners defined the criteria and ranked them for use in assessing and prioritizing health equity gaps. Subsequently, partners generated a series of potential actions for indicators prioritized in this process. Engagement of community partners contributed to benchmark selection and modification, and provided opportunities for dialog and co-learning throughout the process. Application of a CBPR approach provided a foundation for engagement of partners in the Urban HEART process of identifying health equity gaps. This approach offered multiple opportunities for discussion that shaped interpretation and development of strategies to address identified issues to achieve health equity.

Establishing a local coalition for addressing social determinants of hypertension in Quibdó (Colombia): a description and reflection on the process

One-fourth of the adult population of Colombia is estimated to have hypertension. However, there has been relatively little attention to participatory approaches that address the social determinants of hypertension at the local level in Colombia. Early stages of a coalition for addressing hypertension in Quibdó (Colombia) included a stakeholder analysis and engagement of local organizations. This was followed by defining mutual goals, agreement of rules for decision making, and refining a shared vision. Based on a unified understanding of factors influencing hypertension risk, 12 organizations joined the local coalition. They developed an action plan for preventing hypertension and eliminating social disparities in its distribution. Lessons learned during this process suggest that, in marginalized urban areas of middle- and low-income countries, particular attention should be paid, at early implementation stages of coalition, to context specific challenges and opportunities, coalition membership and structure, reframing health, and strengthening capacity.

Independent and Joint Contributions of Fine Particulate Matter Exposure and Population Vulnerability to Mortality in the Detroit Metropolitan Area

Fine particulate matter is associated with adverse health outcomes. Exposure to fine particulate matter may disproportionately affect urban communities with larger numbers of vulnerable residents. We used multilevel logistic regression models to estimate the joint effects of fine particulate matter (PM_2.5) and population vulnerabilities on cardiopulmonary mortality (CPM). We estimated the health benefits of reductions in PM_2.5 across census tracts in the Detroit metropolitan area with varying levels of population vulnerability, using cluster-specific odds ratios scaled to reflect PM_2.5-attributable cardiopulmonary risk. PM_2.5 and population vulnerability were independently associated with odds of CPM. Odds of CPM and the number of deaths attributable to PM_2.5 were greatest in census tracts with both high PM_2.5 exposures and population vulnerability. Reducing PM_2.5 in census tracts with high PM_2.5 would lead to an estimated 18% annual reduction in PM_2.5-attributable CPM. Between 78–79% of those reductions in CPM would occur within census tracts with high population vulnerabilities. These health benefits of reductions in PM_2.5 occurred at levels below current U.S. reference concentrations. Focusing efforts to reduce PM_2.5 in the Detroit metropolitan area in census tracts with currently high levels would also lead to greater benefits for residents of census tracts with high population vulnerabilities.

Antihypertensive Medication Use: Implications for Inequities in Cardiovascular Risk and Opportunities for Intervention

Antihypertensive medication use protects against adverse health effects of hyper-tension. Residents of low-income urban communities are disproportionately Black and Latino, and may experience heightened cardiovascular health risks due to reduced medication use. We estimate the odds of antihypertensive medication use by race/ethnicity and socioeconomic position. Data are from the Healthy Environments Partnership Community Survey, restricted to 377 hypertensive participants. Antihypertensive medication use was defined as people with hypertension who were taking antihypertensive medication. Racial/ethnic and socioeconomic differences in medication use were examined using multivariate logistic regression. Odds of antihypertensive medication use were lower for people with incomes 1.00-1.99 times the poverty level (OR=0.75, p=.05) compared with those ≥2.00 times poverty, and for Latinos (OR=0.48, p&lt;.01) and Whites (OR=0.50, p&lt;.01) compared with Blacks. Findings suggest a need to improve hypertension screening and treatment for residents of low-to moderate-income urban communities, with attention to subgroups who may have limited health care access.

Examining Joint Effects of Air Pollution Exposure and Social Determinants of Health in Defining "At-Risk" Populations Under the Clean Air Act: Susceptibility of Pregnant Women to Hypertensive Disorders of Pregnancy

Pregnant women are uniquely susceptible to adverse effects of air pollution exposure due to vulnerabilities and health consequences during pregnancy (e.g., hypertensive disorders of pregnancy [HDP]) compared to the general population. Because the Clean Air Act (CAA) creates a duty to protect at-risk groups, the regulatory assessment of at-risk populations has both policy and scientific foundations. Previously, pregnant women have not been specially protected in establishing the margin of safety for the ozone and particulate matter (PM) standards. Due to physiological changes, pregnant women can be at greater risk of adverse effects of air pollution and should be considered an at-risk population. Women with preexisting conditions, women experiencing poverty, and groups that suffer systematic discrimination may be particularly susceptible to cardiac effects of air pollutants during pregnancy. We rigorously reviewed 11 studies of over 1.3 million pregnant women in the United States to characterize the relationship between ozone or PM exposure and HDP. Findings were generally mixed, with a few studies reporting a joint association between ozone or PM and social determinants or pre-existing chronic health conditions related to HDP. Adequate evidence associates exposure to PM with an adverse effect of HDP among pregnant women not evident among non-gravid populations.

Does Perceived Safety Modify the Effectiveness of a Walking-Group Intervention Designed to Promote Physical Activity?

PURPOSE

To examine whether perceived safety modified the effectiveness of the Walk Your Heart to Health (WYHH) intervention in promoting physical activity and reducing central adiposity in predominantly non-Latino black (henceforth black) and Latino communities.

DESIGN

Generalized estimation equations were used to assess modifying effects of perceived safety on the route and perceived neighborhood safety on (1) WYHH participation at 8 weeks and 32 weeks, (2) associations between participation and physical activity, and (3) associations between physical activity and central adiposity.

SETTING

Community-based and faith-based organizations in black and Latino communities.

PARTICIPANTS

There were 603 adults, aged 18 years and older, who were predominantly black, Latino, and female.

MEASURES

Participation and physical activity (piezoelectric pedometer) were measured at each walking session. Perceived safety on the route (questionnaire), perceived neighborhood safety (questionnaire), and waist circumference were measured at baseline, 8 weeks, and 32 weeks.

ANALYSIS

Secondary analysis of repeated measures using generalized estimation equations.

RESULTS

Retention was 90% at 8 weeks and 64% at 32 weeks. Perceived safety on the route, but not perceived neighborhood safety, dampened participation at 8 weeks but not 32 weeks. Consistent participation in the intervention increased physical activity and reduced central adiposity irrespective of perceived safety on the walking route or perceived neighborhood safety.

CONCLUSION

Efforts to improve safety in conjunction with interventions focused on increasing physical activity can work toward improving physical activity for blacks and Latinos, leading to a myriad of improved health outcomes including reduced central adiposity.

Independent Effects of Neighborhood Poverty and Psychosocial Stress on Obesity Over Time

The objective of the study was to examine the independent effects of neighborhood poverty and psychosocial stress on increases in central adiposity over time. Data are from a community sample of 157 Non-Hispanic Black, Non-Hispanic White, and Hispanic adults collected in 2002-2003 and 2007-2008, and from the 2000 Decennial Census. The dependent variable was waist circumference. Independent variables included neighborhood poverty, perceived neighborhood physical environment, family stress, safety stress, everyday unfair treatment, and a cumulative stress index. Weighted 3-level hierarchical linear regression models for a continuous outcome were used to assess the effects of neighborhood poverty and psychosocial stress on central adiposity over time. We also assessed whether psychosocial stress mediated the association between neighborhood poverty and central adiposity. Neighborhood poverty and everyday unfair treatment at baseline were independently associated with increases in central adiposity over time, accounting for the other indicators of stress. Perceptions of the neighborhood physical environment and cumulative stress mediated associations between neighborhood poverty and central adiposity. Results suggest that residing in neighborhoods with higher concentrations of poverty and exposure to everyday unfair treatment independently heighten risk of increased central adiposity over time. Associations between neighborhood poverty and central adiposity were mediated by perceptions of the neighborhood physical environment and by the cumulative stress index. Public health strategies to reduce obesity should consider neighborhood poverty and exposure to multiple sources of psychosocial stress, including everyday unfair treatment.

Income inequality and high blood pressure in Colombia: a multilevel analysis

The objective of this research was to examine the association between income inequality and high blood pressure in Colombia. Using a nationally representative Colombian sample of adults, and data from departments and municipalities, we fit sex-stratified linear and logistic multilevel models with blood pressure as a continuous and binary variable, respectively. In adjusted models, women living in departments with the highest quintile of income inequality in 1997 had higher systolic blood pressure than their counterparts living in the lowest quintile of income inequality (mean difference 4.42mmHg; 95%CI: 1.46, 7.39). Women living in departments that were at the fourth and fifth quintile of income inequality in 1994 were more likely to have hypertension than those living in departments at the first quintile in the same year (OR: 1.56 and 1.48, respectively). For men, no associations of income inequality with either systolic blood pressure or hypertension were observed. Our findings are consistent with the hypothesis that income inequality is associated with increased risk of high blood pressure for women. Future studies to analyze pathways linking income inequality to high blood pressure in Colombia are needed.

The Influence of the Transportation Environment on Driving Reduction and Cessation

Purpose of the Study

Driving is by far the most common mode of transportation in the United States, but driving ability is known to decline as people experience age-related functional declines. Some older adults respond to such declines by self-limiting their driving to situations with a low perceived risk of crashing, and many people eventually stop driving completely. Previous research has largely focused on individual and interpersonal predictors of driving reduction and cessation (DRC). The purpose of this study was to assess the influence of the transportation environment on DRC.

Design and Methods

Data were combined from the Health and Retirement Study, the Urban Mobility Scorecard, and StreetMap North America (GIS data). Longitudinal survival analysis techniques were used to analyze seven waves of data spanning a 12-year period.

Results

As roadway density and congestion increased in the environment, the odds of DRC also increased, even after controlling for individual and interpersonal predictors. Other predictors of DRC included demographics, relationship status, health, and household size.

Implications

The current study identified an association between the transportation environment and DRC. Future research is needed to determine whether a causal link can be established. If so, modifications to the physical environment (e.g., creating livable communities with goods and services in close proximity) could reduce driving distances in order to improve older drivers' ability to remain engaged in life. In addition, older individuals who wish to age in place should consider how their local transportation environment may affect their quality of life.

Neighborhood Context, Homeownership and Home Value: An Ecological Analysis of Implications for Health

While homeownership has been linked to positive health outcomes there is limited evidence regarding the conditions under which it may be health protective. We present a conceptual model linking homeownership to health, highlighting key potential pathways. Using the Detroit Metropolitan Area as a case study, and data from the American Community Survey (2009-2013; 5-years estimates) and Michigan Department of Community Health, we tested the following questions: (1) Is neighborhood percentage non-Hispanic Black (NHB) associated with homeownership? (2) Is neighborhood percentage NHB associated with health? (3) Is the association between percentage NHB and health mediated by homeownership? (4) Does neighborhood housing value modify associations between percentage NHB and health, or between homeownership and health? Percentage NHB was associated with homeownership and health outcomes; Associations between percentage NHB and mortality, but not disability, were partially mediated by neighborhood homeownership. Neighborhood housing value modified associations between neighborhood homeownership and both disability and mortality, but not between percentage NHB and health outcomes. Findings are consistent with the thesis that health-promoting effects of homeownership may be contingent upon house values. These results add to a limited body of evidence suggesting that variations in homeownership may contribute to persistent racial and socioeconomic health inequities.

Abortion attitudes among South Africans: findings from the 2013 social attitudes survey

Abortion is legal in South Africa, but over half of abortions remain unsafe there. Evidence suggests women who are (Black) African, of lower socioeconomic status, living with HIV, or residents of Gauteng, KwaZulu-Natal, or Limpopo provinces are disproportionately vulnerable to morbidity or mortality from unsafe abortion. Negative attitudes toward abortion have been documented in purposively sampled studies, yet it remains unclear what attitudes exist nationally or whether they differ across sociodemographic groups, with implications for inequities in service accessibility and health. In the current study, we analysed nationally representative data from 2013 to estimate the prevalence of negative abortion attitudes in South Africa and to identify racial, socioeconomic and geographic differences. More respondents felt abortion was 'always wrong' in the case of family poverty (75.4%) as compared to foetal anomaly (55%), and over half of respondents felt abortion was 'always wrong' in both cases (52.5%). Using binary logistic regression models, we found significantly higher odds of negative abortion attitudes among non-Xhosa African and Coloured respondents (compared to Xhosa respondents), those with primary education or less, and residents of Gauteng and Limpopo (compared to Western Cape). We contextualise and discuss these findings using a human rights-based approach to health.

Social patterning of cardiovascular and metabolic risk in Colombian adults

OBJECTIVES

To test for differences in cardiovascular and metabolic risk (CMR) by educational attainment and physical capital. To compare CMR among black, indigenous, and mixed populations, accounting for socioeconomic status (SES).

DESIGN

We conducted multivariate analyses using cross-sectional data from a national survey of Colombian adults (n = 10,814) to examine the social patterning of CMR. In sex/gender-stratified models, a CMR index was regressed on educational attainment, physical capital, ethnicity/race, and age.

RESULTS

Women with a primary education (OR = 1.64, 95% CI: 1.25, 2.15) had higher age- and ethnicity/race-adjusted odds of CMR than women with more than secondary education. Men with a primary education (OR = 0.67, 95% CI: 0.48, 0.92) had significantly lower adjusted odds of CMR than men with more than secondary education; these associations did not remain significant after adjustments for physical capital. Men in the first (OR = 0.45, 95% CI: 0.36, 0.57) and second (OR = 0.72, 95% CI: 0.57, 0.91) physical capital tertiles had significantly lower adjusted odds of CMR than those in the highest tertile. There was not a significant patterning of CMR by ethnicity/race for women or men, or by physical capital for women.

CONCLUSIONS

Findings suggest that for Colombian adults CMR is patterned by SES; these associations differ by sex/gender.

Longitudinal Associations Between Observed and Perceived Neighborhood Food Availability and Body Mass Index in a Multiethnic Urban Sample

INTRODUCTION

Blacks, Hispanics, and women of lower socioeconomic status tend to have a higher risk of obesity. Numerous studies over the past decade examined the role of the neighborhood food environment in body weight. However, few were longitudinal.

PURPOSE

This longitudinal study examined whether multiple measures of neighborhood food availability were associated with body mass index (BMI) in a predominately Black and Hispanic adult sample living in low- to moderate-income urban neighborhoods.

METHOD

This longitudinal study used two waves of data (2002, 2008), including interviewer-measured height and weight, from a community survey of adults ( n = 219). In both 2002 and 2008, multiple measures characterized neighborhood food availability: GIS-derived availability of retail food outlets (large grocery store, small grocery store, convenience store, liquor stores), observed fruit and vegetable availability (count of stores selling 10 or more fresh fruit or vegetable varieties), and perceived fruit and vegetable access. Random intercept models estimated multivariable associations, controlling for individual-level demographics and neighborhood median household income.

RESULTS

Small grocery store availability was associated with 1.22-unit increase in BMI ( p = .047), while each unit increase in perceived fruit and vegetable access was associated with a 0.69-unit decrease in BMI ( p = .055). BMI was not associated with large grocery store, convenience store, or liquor store availability, or with observed fruit and vegetable availability.

CONCLUSIONS

Findings suggest that improving the neighborhood food environment, particularly at small grocery stores, may help urban residents living in low- to moderate-income neighborhoods achieve healthier body weights over time.

Do Neighborhood Demographics Modify Walking Group Intervention Effectiveness in Urban Neighborhoods?

OBJECTIVES

We assessed the effects of neighborhood composition on effectiveness of the Walk Your Heart to Health (WYHH) intervention in promoting physical activity and reducing cardiovascular risk (CVR) in low-to-moderate-income, predominantly non-Latino Black (NLB) and Latino communities.

METHOD

Multilevel models assessed modifying effects of neighborhood composition on (1) WYHH adherence/participation at 8 weeks and 32 weeks, (2) associations between participation and steps, and (3) associations between steps and CVR.

RESULTS

Approximately 90% of participants were women. Neither neighborhood poverty nor racial composition modified intervention participation at 8 weeks. At 32 weeks, residents of high percentage-NLB neighborhoods that also had high poverty rates had reduced participation. Neighborhood composition did not modify associations between participation and steps or between steps and CVR. Neighborhood percentage poverty and NLB were positively associated with CVR.

CONCLUSION

Positive associations between participation in the WYHH program and physical activity, and CVR did not differ by neighborhood composition. Efforts to address challenges to long-term participation are warranted for residents of racially segregated, high-poverty neighborhoods. Residents of racially segregated neighborhoods with high concentrations of poverty experience disproportionately high risk for cardiovascular disease and can benefit from interventions such as WYHH that increase physical activity and reduce CVR.

NEIGHBOURHOOD POVERTY, PERCEIVED DISCRIMINATION AND CENTRAL ADIPOSITY IN THE USA: INDEPENDENT ASSOCIATIONS IN A REPEATED MEASURES ANALYSIS

This study examines the independent effects of neighbourhood context (i.e. neighbourhood poverty) and exposure to perceived discrimination in shaping risk of obesity over time. Weighted three-level hierarchical linear regression models for a continuous outcome were used to assess the independent effects of neighbourhood poverty and perceived discrimination on obesity over time in a sample of 157 non-Hispanic Black, non-Hispanic White and Hispanic adults in Detroit, USA, in 2002/2003 and 2007/2008. Independent associations were found between neighbourhood poverty and perceived discrimination with central adiposity over time. Residents of neighbourhoods with high concentrations of poverty were more likely to show increases in central adiposity compared with those in neighbourhoods with lower concentrations of poverty. In models adjusted for BMI, neighbourhood poverty at baseline was associated with a greater change in central adiposity among participants who lived in neighbourhoods in the second (B=3.79, p=0.025) and third (B=3.73, p=0.024) poverty quartiles, compared with those in the lowest poverty neighbourhoods. The results from models that included both neighbourhood poverty and perceived discrimination showed that both were associated with increased risk of increased central adiposity over time. Residents of neighbourhoods in the second (B=9.58, p<0.001), third (B=8.25, p=0.004) and fourth (B=7.66, p=0.030) quartiles of poverty were more likely to show greater increases in central adiposity over time, compared with those in the lowest poverty quartile, with mean discrimination at baseline independently and positively associated with increases in central adiposity over time (B=2.36, p=0.020). The results suggest that neighbourhood poverty and perceived discrimination are independently associated with a heightened risk of increase in central adiposity over time. Efforts to address persistent disparities in central adiposity in the USA should include strategies to reduce high concentrations of neighbourhood poverty as well as discrimination.

RACE AND THE DISTRIBUTION OF SOCIAL AND PHYSICAL ENVIRONMENTAL RISK: A Case Example from the Detroit Metropolitan Area

Since W. E. B. Du Bois documented the physical and social environments of Philadelphia's predominantly African American Seventh Ward over a century ago, there has been continued interest in understanding the distribution of social and physical environments by racial make-up of communities. Characterization of these environments allows for documentation of inequities, identifies communities which encounter heightened risk, and can inform action to promote health equity. In this paper, we apply and extend Du Bois's approach to examine the contemporary distribution of physical environmental exposures, health risks, and social vulnerabilities in the Detroit metropolitan area, one of the most racially-segregated areas in the United States. We begin by mapping the proximity of sensitive populations to hazardous land uses, their exposure to air pollutants and associated health risks, and social vulnerabilities, as well as cumulative risk (combined proximity, exposure, and vulnerability), across Census tracts. Next, we assess, quantitatively, the extent to which communities of color experience excess burdens of environmental exposures and associated health risks, economic and age-related vulnerabilities, and cumulative risk. The results, depicted in maps presented in the paper, suggest that Census tracts with greater proportions of people of color disproportionately encounter physical environmental exposures, socioeconomic vulnerabilities, and combined risk. Quantitative tests of inequality confirm these distributions, with statistically greater exposures, vulnerabilities, and cumulative risk in Census tracts with larger proportions of people of color. Together, these findings identify communities that experience disproportionate cumulative risk in the Detroit metropolitan area and quantify the inequitable distribution of risk by Census tract relative to the proportion of people of color. They identify clear opportunities for prioritizing communities for legislative, regulatory, policy, and local actions to promote environmental justice and health equity.

Multidirectional Translation of Environmental Health Science in Community Settings: The Case of Oxidative Stress Pathways

BACKGROUND

Translation of environmental health science in vulnerable communities is particularly important to promote public health and reduce health inequities.

METHODS

We describe a structured, multidirectional process used to develop a suite of health promotion tools (e.g., fact sheets, video, maps) documenting patterning of local air pollution sources and availability of antioxidant-rich foods in Detroit, Michigan as factors that jointly affect oxidative stress (OS). OS underlies many pathological processes associated with air pollution, including asthma, metabolic syndrome, cancer, diabetes, and obesity. This translational effort involved a 2-year dialogue among representatives from community-based and environmental organizations, health service providers, and academic researchers.

RESULTS

This dialogue led to development of tools, as well as new opportunities to inform related policies and research.

CONCLUSIONS

Through this example, we highlight how collaborative partnerships can enhance multidirectional dialogue to inform translation of environmental health science by promoting consideration of multilevel risk factors, local priorities and context, and diverse audiences.

Local Actors' Frames of the Role of Living Conditions in Shaping Hypertension Risk and Disparities in a Colombian Municipality

Conditions in the social and physical environment influence population health and risk for CVD, including hypertension. These environmental conditions are influenced by the decisions of public officials, community leaders, and service providers. Examining the frames that local decision makers bring to understanding hypertension can provide important insights into the decisions that they make about strategies for addressing this problem in their jurisdiction. The goal of this study was to examine the frames that local decision makers in Quibdó, Colombia, bring to understanding hypertension risk, and in particular, whether and how they use frames that encompass associations between living conditions and hypertension risk. Data for this qualitative study were collected using a stratified sampling strategy. Semi-structured interviews were conducted in 2012 with 13 local decision makers and analyzed using a framework approach. Participants linked the structural conditions experienced in Quibdó, including displacement, limited economic opportunities, and the infrastructure of the city, to hypertension risk through multiple pathways, including behavioral risk factors for hypertension and physiologic responses to stress. They described the social patterning of these factors across socioeconomic, racial/ethnic, and gender hierarchies. Although several conditions associated with hypertension risk are widely distributed in the city's population, social processes of marginalization and stratification create additional disadvantages for those on the lower rungs of the social hierarchy.

The Relationship of Built Environment to Health-Related Behaviors and Health Outcomes in Elderly Community Residents in a Middle Income Country

Background

Few studies have examined the impact of the built environment (BE) on health behaviours and health outcomes in middle income countries. This study examines associations between self-assessed characteristics of the home and neighbourhood environment and health-related behaviours and health outcomes in an elderly population in Brazil

Design and methods

In a community sample of 6963 community dwellers 60 years old and older living in the state of Rio Grande do Sul, Brazil, associations between self-reported BE conditions and health behaviours and health outcomes were assessed using a structured questionnaire. Multivariate analysis was conducted to investigate these associations while accounting for other relevant characteristics.

Results

We found significant positive associations between adverse BE conditions and pulmonary, urinary conditions, gastrointestinal, problems, headache and depression. There were mixed associations between adverse BE conditions and musculoskeletal and sensory conditions, inverse associations with metabolic disorders. and no associations with dermatologic problems and cancer. After accounting for health related behaviours, results suggest a modest association between adverse BE conditions and hypertension, with no significant associations with other indicators of cardiovascular conditions (heart problems, stroke, varicose veins).

Conclusions

The findings in this study suggest links between adverse conditions in the BE and health related behaviours in the hypothesized direction. Associations with the health conditions examined here are mixed. We find the strongest evidence for effects of adverse BE conditions for pulmonary and infectious conditions. Significant associations between the adverse BE indicators and health outcomes persist after accounting for health related behaviours, suggesting that BE conditions are linked to health pathways above and beyond the health related behaviours assessed in this study.

Joint Associations of Residential Density and Neighborhood Involvement With Physical Activity Among a Multiethnic Sample of Urban Adults

Regular physical activity is associated with improvements in overall health. Although resident involvement in neighborhood social activities is positively associated with physical activity, neighborhood design features, including residential density, have varied associations with physical activity. Using data from a multiethnic sample of 696 adults in Detroit, Michigan, multilevel models were used to examine joint effects of residential density and resident involvement in neighborhood activities in relation to physical activity. We found a marginally significant negative interaction of higher residential density and resident neighborhood involvement. Higher residential density was negatively associated with physical activity, and resident neighborhood involvement was positively associated with physical activity. Our findings suggest that future work incorporate additional neighborhood and individual-level characteristics to understand the complexity of the association between the neighborhood environment, resident social engagement in the neighborhood, and physical activity.

Leader Behaviors, Group Cohesion, and Participation in a Walking Group Program

INTRODUCTION

Less than half of all U.S. adults meet the 2008 Physical Activity Guidelines. Leader behaviors and group cohesion have been associated with increased participation or adherence in sports team and exercise class settings. Physical activity interventions in community settings that encompass these factors may enhance intervention adherence. The purpose of this study is to examine the impact of Community Health Promoter leader behaviors and group cohesion on participation in a walking group intervention among racially/ethnically diverse adults in low to moderate-income communities in Detroit, Michigan.

DESIGN

Data for the current study were drawn from the Walk Your Heart to Health (WYHH) data set. WYHH was a multisite cluster RCT with a lagged intervention and outcome measurements at baseline and 4, 8, and 32 weeks. Pooled survey data from both intervention arms were used for the current study. Data were analyzed between August 2013 and October 2014.

SETTING/PARTICIPANTS

A total of 603 non-Hispanic black, non-Hispanic white, and Hispanic adults across five cohorts that began the 32-week WYHH intervention between March 2009 and October 2011.

INTERVENTION

The intervention was a 32-week walking group program hosted by community- and faith-based organizations and facilitated by Community Health Promoters. Walking groups met three times per week for 90 minutes per session. To promote participation in or adherence to WYHH, Community Health Promoters used evidence-based strategies to facilitate group cohesion. Group members assumed increasing leadership responsibility for facilitating sessions over time.

MAIN OUTCOME MEASURES

Participation in WYHH as measured by consistency of attendance.

RESULTS

Community Health Promoter leader behaviors were positively associated with participation in WYHH. Social but not task cohesion was significantly associated with consistent participation. Social cohesion may mediate the relationship between leader behaviors and walking group participation.

CONCLUSIONS

Providing leaders with training to build socially cohesive groups may help motivate individuals to continue participation in community-based physical activity programs.

Effects of particulate matter and antioxidant dietary intake on blood pressure

OBJECTIVES

We assessed 2 pathways through which dietary antioxidants may counter adverse effects of exposure to particulate matter less than 2.5 micrometers in diameter (PM2.5) on blood pressure (BP): main (compensatory) and modifying (protective) models.

METHODS

We used 2002 to 2003 data from the Detroit Healthy Environments Partnership community survey conducted with a multiethnic sample of adults (n = 347) in low- to moderate-income, predominantly Hispanic and non-Hispanic Black neighborhoods in Detroit, Michigan. We used generalized estimating equations to test the effects of ambient exposure to PM2.5 and dietary antioxidant intake on BP, with adjustment for multiple confounders.

RESULTS

Dietary antioxidant intake was inversely associated with systolic BP (b = -0.5; P < .05) and pulse pressure (b  = -0.6; P < .05) in neighborhoods closest to major sources of air pollutants. Adverse effects of PM2.5 remained significant after accounting for antioxidant intakes. Exploratory analyses suggested potential modifying effects of antioxidant intake on associations between ambient PM2.5 exposure and BP.

CONCLUSIONS

Interventions to improve access to antioxidant-rich foods in polluted urban areas may be protective of cardiovascular health. However, efforts to reduce PM2.5 exposure remain critical for cardiovascular health promotion.

Race-Ethnicity, Poverty, Urban Stressors, and Telomere Length in a Detroit Community-based Sample

Residents of distressed urban areas suffer early aging-related disease and excess mortality. Using a community-based participatory research approach in a collaboration between social researchers and cellular biologists, we collected a unique data set of 239 black, white, or Mexican adults from a stratified, multistage probability sample of three Detroit neighborhoods. We drew venous blood and measured telomere length (TL), an indicator of stress-mediated biological aging, linking respondents' TL to their community survey responses. We regressed TL on socioeconomic, psychosocial, neighborhood, and behavioral stressors, hypothesizing and finding an interaction between poverty and racial-ethnic group. Poor whites had shorter TL than nonpoor whites; poor and nonpoor blacks had equivalent TL; and poor Mexicans had longer TL than nonpoor Mexicans. Findings suggest unobserved heterogeneity bias is an important threat to the validity of estimates of TL differences by race-ethnicity. They point to health impacts of social identity as contingent, the products of structurally rooted biopsychosocial processes.

Neighbourhood socioeconomic disadvantage and fruit and vegetable consumption: a seven countries comparison

BACKGROUND

Low fruit and vegetable consumption is a risk factor for poor health. Studies have shown consumption varies across neighbourhoods, with lower intakes in disadvantaged neighbourhoods. However, findings are inconsistent, suggesting that socio-spatial inequities in diet could be context-specific, highlighting a need for international comparisons across contexts. This study examined variations in fruit and vegetable consumption among adults from neighbourhoods of varying socioeconomic status (SES) across seven countries (Australia, Canada, Netherlands, New Zealand, Portugal, Scotland, US).

METHODS

Data from seven existing studies, identified through literature searches and knowledge of co-authors, which collected measures of both neighbourhood-level SES and fruit and vegetable consumption were used. Logistic regression was used to examine associations between neighbourhood-level SES and binary fruit and vegetable consumption separately, adjusting for neighbourhood clustering and age, gender and education. As much as possible, variables were treated in a consistent manner in the analysis for each study to allow the identification of patterns of association within study and to examine differences in the associations across studies.

RESULTS

Adjusted analyses showed evidence of an association between neighbourhood-level SES and fruit consumption in Canada, New Zealand and Scotland, with increased odds of greater fruit intake in higher SES neighbourhoods. In Australia, Canada, New Zealand and Portugal, those residing in higher SES neighbourhoods had increased odds of greater vegetable intake. The other studies showed no evidence of a difference by neighbourhood-level SES.

CONCLUSIONS

Acknowledging discrepancies across studies in terms of sampling, measures, and definitions of neighbourhoods, this opportunistic study, which treated data in a consistent manner, suggests that associations between diet and neighbourhood-level socioeconomic status vary across countries. Neighbourhood socioeconomic disadvantage may differentially impact on access to resources in which produce is available in different countries. Neighbourhood environments have the potential to influence behaviour and further research is required to examine the context in which these associations arise.

Storytelling in community intervention research: lessons learned from the walk your heart to health intervention

BACKGROUND

Contextually and culturally congruent interventions are urgently needed to reduce racial, ethnic, and socioeconomic inequities in physical activity and cardiovascular disease.

OBJECTIVES

To examine a community-based participatory research (CBPR) process that incorporated storytelling into a physical activity intervention, and consider implications for reducing health inequities.

METHODS

We used a CBPR process to incorporate storytelling in an existing walking group intervention. Stories conveyed social support and problem-solving intervention themes designed to maintain increases in physical activity over time, and were adapted to the walking group context, group dynamics, challenges, and traditions.

LESSONS LEARNED

After describing of the CBPR process used to adapt stories to walking group sites, we discuss challenges and lessons learned regarding the adaptation and implementation of stories to convey key intervention themes.

CONCLUSIONS

A CBPR approach to incorporating storytelling to convey intervention themes offers an innovative and flexible strategy to promote health toward the elimination of health inequities.

Effectiveness of a walking group intervention to promote physical activity and cardiovascular health in predominantly non-Hispanic black and Hispanic urban neighborhoods: findings from the walk your heart to health intervention

OBJECTIVES

The purpose of this study was to evaluate the effectiveness of the Walk Your Heart to Health (WYHH) intervention, one component of the multilevel Community Approaches to Cardiovascular Health: Pathways to Heart Health (CATCH:PATH) intervention designed to promote physical activity and reduce cardiovascular risk among non-Hispanic Black and Hispanic residents of Detroit, Michigan. The study was designed and implemented using a community-based participatory research approach that actively engaged community residents, health service providers and academic researchers. It was implemented between 2009 and 2012.

METHOD

WYHH was a 32-week community health promoter-facilitated walking group intervention. Groups met three times per week at community-based or faith-based organizations, and walked for 45 to 90 minutes (increasing over time). The study used a cluster randomized control design to evaluate effectiveness of WYHH, with participants randomized into intervention or lagged intervention (control) groups. Psychosocial, clinical, and anthropometric data were collected at baseline, 8, and 32 weeks, and pedometer step data tracked using uploadable peisoelectric pedometers.

RESULTS

Participants in the intervention group increased steps significantly more during the initial 8-week intervention period, compared with the control group (β = 2004.5, p = .000). Increases in physical activity were associated with reductions in systolic blood pressure, fasting blood glucose, total cholesterol, waist circumference and body mass index at 8 weeks, and maintained at 32 weeks.

CONCLUSION

The WYHH community health promoter-facilitated walking group intervention was associated with significant reductions in multiple indicators of cardiovascular risk among predominantly Hispanic and non-Hispanic Black participants in a low-to-moderate income urban community. Such interventions can contribute to reductions in racial, ethnic, and socioeconomic inequities in cardiovascular mortality.

Fine particulate matter air pollution and blood pressure: the modifying role of psychosocial stress

BACKGROUND

Consensus is growing on the need to investigate the joint effects of psychosocial stress and environmental hazards on health. Some evidence suggests that psychosocial stress may be an important modifier of the association between air pollution respiratory outcomes, but few have examined cardiovascular outcomes.

OBJECTIVES

We examined the modifying effect of psychosocial stress on the association between fine particulate matter air pollution (PM2.5) and blood pressure (BP).

METHODS

Our data came from the Detroit Healthy Environments Partnership (HEP) 2002-2003 survey. Of 919 participants, BP was collected at two time points in a subset of 347. Building on previous work reporting associations between PM2.5 and BP in this sample, we regressed systolic (SBP) and diastolic (DBP) BP and pulse pressure (PP), in separate linear models, on the interaction among psychosocial stress, PM2.5, and HEP neighborhood (Southwest, Eastside, Northwest).

RESULTS

The association between PM2.5 and SBP was stronger for those who reported high levels of stress, but this interaction was significant only in the Southwest Detroit neighborhood. Southwest Detroit residents who reported low stress showed 2.94 mmHg (95% CI: -0.85, 6.72) increase in SBP for each 10 μg/m(3) increase in 2-day prior PM2.5 exposure. Those who reported high stress showed 9.05 mmHg (95% CI: 3.29, 14.81) increase in SBP for each 10 μg/m(3) increase in PM2.5 exposure.

CONCLUSIONS

These results suggest that psychosocial stress may increase vulnerability to the hypertensive effects of PM2.5. This work contributes to an understanding of the ways in which the social and physical environments may jointly contribute to poor health and to health disparities.

Associations between observed neighborhood characteristics and physical activity: findings from a multiethnic urban community

BACKGROUND

There is growing interest in the contributions of characteristics of the neighborhood environment to inequalities in physical activity. However, few studies have examined the relationship between observed neighborhood environmental characteristics and physical activity in a multiethnic urban area.

PURPOSE

The purpose of this study was to assess relationships between neighborhood environments and physical activity and the extent to which these associations varied by demographic characteristics or perceptions of the physical and social environment.

METHODS

Cross-sectional analyses drew upon data collected from a stratified proportional probability sample of non-Hispanic Black, Hispanic and non-Hispanic White (NHW) adults (n = 919) in low-to-moderate income neighborhoods in Detroit, Michigan. Physical activity was assessed as self-reported duration and frequency of vigorous and moderate physical activity. Observed physical environment was assessed through systematic social observation by trained observers on blocks adjacent to survey respondents' residences.

RESULTS

We find a positive association of sidewalk condition with physical activity, with stronger effects for younger compared with older residents. In addition, physical disorder was more negatively associated with physical activity among NHW and older residents.

CONCLUSIONS

These findings suggest that sidewalk improvements and reductions in physical disorder in urban communities may promote greater equity in physical activity.

Do observed or perceived characteristics of the neighborhood environment mediate associations between neighborhood poverty and cumulative biological risk?

OBJECTIVE

To examine contributions of observed and perceived neighborhood characteristics in explaining associations between neighborhood poverty and cumulative biological risk (CBR) in an urban community.

METHODS

Multilevel regression analyses were conducted using cross-sectional data from a probability sample survey (n=919), and observational and census data. Dependent variable: CBR.

INDEPENDENT VARIABLES

neighborhood disorder, deterioration and characteristics; perceived neighborhood social environment, physical environment, and neighborhood environment. Covariates: neighborhood and individual demographics, health-related behaviors.

RESULTS

Observed and perceived indicators of neighborhood conditions were significantly associated with CBR, after accounting for both neighborhood and individual level socioeconomic indicators. Observed and perceived neighborhood environmental conditions mediated associations between neighborhood poverty and CBR.

CONCLUSIONS

Findings were consistent with the hypothesis that neighborhood conditions associated with economic divestment mediate associations between neighborhood poverty and CBR.

Secular trends in the association between nativity/length of US residence with body mass index and waist circumference among Mexican-Americans, 1988-2008

OBJECTIVES

We investigated whether associations between nativity/length of US residence and body mass index (BMI) and waist circumference (WC) varied over the past two decades.

METHODS

Mexican-Americans aged 20-64 years from the National Health and Nutrition Survey (NHANES) III (1988-1994), and NHANES (1999-2008). Sex-stratified multivariable linear regression models further adjusted for age, education, and NHANES period.

RESULTS

We found no evidence of secular variation in the nativity/length of US residence gradient for men or women. Foreign-born Mexican-Americans, irrespective of residence length, had lower mean BMI and WC than their US-born counterparts. However among women, education modified secular trends in nativity differentials: notably, in less-educated women, nativity gradients widened over time due to alarming increases in BMI among the US-born and little increase in the foreign-born.

CONCLUSIONS

Associations between nativity/length of US residence and BMI/WC did not vary over this 20-year period, but we noted important modifications by education in women. Understanding these trends is important for identifying vulnerable subpopulations among Mexican-Americans and for the development of effective health promotion strategies in this fast-growing segment of the population.

Neighborhood food environment role in modifying psychosocial stress-diet relationships

Exposure to highly palatable foods may increase eating in response to stress, but this behavioral response has not been examined in relation to the neighborhood food environment. This study examined whether the neighborhood food environment modified relationships between psychosocial stress and dietary behaviors. Probability-sample survey (n=460) and in-person food environment audit data were used. Dietary behaviors were measured using 17 snack food items and a single eating-out-of-home item. Chronic stress was derived from five subscales; major life events was a count of nine items. The neighborhood food environment was measured as availability of large grocery stores, small grocery stores, and convenience stores, as well as proportion of restaurants that were fast food. Two-level hierarchical regression models were estimated. Snack food intake was positively associated with convenience store availability and negatively associated with large grocery store availability. The measures of chronic stress and major life events were generally not associated with either dietary behavior overall, although Latinos were less likely to eat out at high levels of major life events than African Americans. Stress-neighborhood food environment interactions were not statistically significant. Important questions remain regarding the role of the neighborhood food environment in the stress-diet relationship that warrant further investigation.