Mexican-origin women's individual and collective strategies to access and share health-promoting resources in the context of exclusionary immigration and immigrant policies.

BACKGROUND: A growing literature has documented the social, economic, and health impacts of exclusionary immigration and immigrant policies in the early 21st century for Latiné communities in the US, pointing to immigration and immigrant policies as forms of structural racism that affect individual, family, and community health and well-being. Furthermore, the past decade has seen an increase in bi-partisan exclusionary immigration and immigrant policies. Immigration enforcement has been a major topic during the 2024 Presidential election cycle, portending an augmentation of exclusionary policies towards immigrants. Within this context, scholars have called for research that highlights the ways in which Latiné communities navigate exclusionary immigration and immigrant policies, and implications for health. This study examines ways in which Mexican-origin women in a midwestern northern border community navigate restrictive immigration and immigrant policies to access health-promoting resources and care for their well-being. METHODS: We conducted a grounded theory analysis drawing on interviews with 48 Mexican-origin women in Detroit, Michigan, who identified as being in the first, 1.5, or second immigrant generation. Interviews were conducted in English or Spanish, depending on participants' preferences, and were conducted at community-based organizations or other locations convenient to participants in 2013-2014. RESULTS: Women reported encountering an interconnected web of institutional processes that used racializing markers to infer legal status and eligibility to access health-promoting resources. Our findings highlight women's use of both individual and collective action to navigate exclusionary policies and processes, working to: (1) maintain access to health-promoting resources; (2) limit labeling and stigmatization; and (3) mitigate adverse impacts of immigrant policing on health and well-being. The strategies women engaged were shaped by both the immigration processes and structures they confronted, and the resources to which they had access to within their social network. CONCLUSIONS: Our findings suggest a complex interplay of immigration-related policies and processes, social networks, and health-relevant resources. They highlight the importance of inclusive policies to promote health for immigrant communities. These findings illuminate women's agency in the context of structural violence facing immigrant women and are particularly salient in the face of anti-immigrant rhetoric and exclusionary immigration and immigrant policies.

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).

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.

Weathering in Detroit: Place, Race, Ethnicity, and Poverty as Conceptually Fluctuating Social Constructs Shaping Variation in Allostatic Load.

Policy Points Despite 30 years of attention to eliminating population health inequity, it remains entrenched, calling for new approaches. Targeted universalism, wellness-based local development, and Jedi Public Health approaches that are community informed, evidence based, and focused on improving everyday settings and diverse lived experiences are important policy directions. State and federal revenue transfers are necessary to mitigate the harms of austerity and assure greater equity in fiscal and population health in places like Detroit, Michigan. CONTEXT: US population health inequity remains entrenched, despite mandates to eliminate it. To promote a public health approach of consequence in this domain, stakeholders call for moving from risk-factor epidemiology toward consideration of dynamic local variations in the physiological impacts of structured lived experience. METHODS: Using a community-based, participatory research approach, we collected and analyzed a unique data set of 239 black, white, and Mexican adults from a stratified, multistage probability sample of three Detroit, Michigan, neighborhoods. We drew venous blood, collected saliva, took anthropometric measurements, and assayed specimens to measure allostatic load (AL), an indicator of stress-mediated biological dysregulation, linking participants' AL scores and survey responses. In a series of nested Poisson models, we regressed AL on socioeconomic, psychosocial, neighborhood, and behavioral stressors to test the hypothesis that race/ethnicity and poverty-to-income ratio (PIR) are conceptually fluctuating variables whose impacts on AL are sensitive to structured lived experience. FINDINGS: White and Mexican Detroit participants with PIR < 1 have higher AL than counterparts nationally; black participants in Detroit and nationwide had comparable AL. Within Detroit, disparities by PIR were higher in whites than blacks, with no significant difference by PIR in Mexicans. The size of estimated effects of having PIR < 1 for whites is 58 percentage points greater than that of Mexicans and twice that of blacks. CONCLUSIONS: Structurally rooted unobserved heterogeneity bias threatens the validity of independent main effects interpretations of associations between race/ethnicity, socioeconomic characteristics, or place and health. One-size-fits-all analytic or policy models developed from the perspective of the dominant social group insufficiently address the experiences of diverse populations in specific settings and historical moments; nor do they recognize culturally mediated protective resources residents may have developed against material and psychosocial hardship.

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.

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; ORpoverty = 0.84, p = .02). Premarital sex acceptability strongly and positively predicted abortion acceptability (ORanomaly = 2.63, p < .001; ORpoverty = 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 ((ORanomaly = 1.09, p = .01; ORpoverty = 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.

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.

Social relationships, neighbourhood poverty and cumulative biological risk: findings from a multi-racial US urban community.

Prior research has established associations between neighbourhood poverty and cumulative biological risk (CBR). CBR is conceptualized as indicative of the effects of stress on biological functioning, and is linked with increased morbidity and mortality. Studies suggest that supportive social relationships may be health protective, and may erode under conditions of poverty. This study examines whether social relationships are inversely associated with CBR and whether associations between neighbourhood poverty and CBR are mediated through social relationships. Data were from a stratified probability sample community survey (n=919) of residents of Detroit, Michigan, USA (2002-2003) and from the 2000 US Census. The outcome variable, CBR, included anthropometric and clinical measures. Independent variables included four indicators of social relationships: social support, neighbourhood satisfaction, social cohesion and neighbourhood participation. Multilevel models were used to test both research questions, with neighbourhood poverty and social relationships included at the block group level, and social relationships also included at the individual level, to disentangle individual from neighbourhood effects. Findings suggest some associations between social relationships and CBR after accounting for neighbourhood poverty and individual characteristics. In models that accounted for all indicators of social relationships, individual-level social support was associated with greater CBR (ß=0.12, p=0.04), while neighbourhood-level social support was marginally significantly protective of CBR (within-neighbourhood: ß=-0.36, p=0.06; between-neighbourhood: ß=-0.24, p=0.06). In contrast, individual-level neighbourhood satisfaction was protective of CBR (ß=-0.10, p=0.02), with no within-neighbourhood (ß=0.06, p=0.54) or between-neighbourhood association (ß=-0.04, p=0.38). Results indicate no significant association between either social cohesion or neighbourhood participation and CBR. Associations between neighbourhood poverty and CBR were not mediated by social relationships. These findings suggest that neighbourhood-level social support and individual-level neighbourhood satisfaction may be health protective and that neighbourhood poverty, social support and neighbourhood satisfaction are associated with CBR through independent pathways.

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.

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.

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.

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.

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.

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.

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.

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.

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.

Food shopping behaviours and exposure to discrimination.

OBJECTIVE: The present study examined food shopping behaviours, particularly distance to grocery shop, and exposure to discrimination. DESIGN: Cross-sectional observational study utilizing data from a community survey, neighbourhood food environment observations and the decennial census. SETTING: Three communities in Detroit, Michigan, USA. SUBJECTS: Probability sample of 919 African-American, Latino and white adults in 146 census blocks and sixty-nine census block groups. RESULTS: On average, respondents shopped for groceries 3·1 miles (4·99 km) from home, with 30·9 % shopping within 1 mile (1·61 km) and 22·3 % shopping more than 5 miles (8·05 km) from home. Longer distance to shop was associated with being younger, African-American (compared with Latino), a woman, higher socio-economic status, lower satisfaction with the neighbourhood food environment, and living in a neighbourhood with higher poverty, without a large grocery store and further from the nearest supermarket. African-Americans and those with the lowest incomes were particularly likely to report unfair treatment at food outlets. Each mile (1·61 km) increase in distance to shop was associated with a 7 % increase in the odds of unfair treatment; this relationship did not differ by race/ethnicity. CONCLUSIONS: The study suggests that unfair treatment in retail interactions warrants investigation as a pathway by which restricted neighbourhood food environments and food shopping behaviours may adversely affect health and contribute to health disparities. Efforts to promote 'healthy' and equitable food environments should emphasize local availability and affordability of a range of healthy food products, as well as fair treatment while shopping regardless of race/ethnicity or socio-economic status.

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.