Framing Later Life Vulnerability during the COVID-19 Pandemic: A Content Analysis of Newspaper Coverage in Canada and the United States

This study explores vulnerability narratives used in relation to older adults and others during the COVID-19 pandemic. A mixed-method content analysis was conducted of 391 articles published in two major newspapers in Canada and the USA during the first wave of the pandemic. The findings indicated that during the early months of the pandemic, limited attention was directed towards its impact on older adults or other 'vulnerable' subpopulations in both countries. Where evident, intrinsic (individual-level) risk factors were most consistently used to frame the vulnerability of older adults. In contrast, vulnerability was more likely to be framed as structural with regard to other subpopulations (e.g., ethno-racial minorities). These narratives also differed somewhat in Canadian and US newspapers. The framing of older adults as intrinsically vulnerable reflects ageist stereotypes and promotes downstream policy interventions. Greater attention is needed to the role of structural factors in influencing pandemic-related outcomes among older adults.

The Generative Mechanisms of Financial Strain and Financial Well-Being: A Critical Realist Analysis of Ideology and Difference

BACKGROUND

Rapid, strategic action is required to mitigate the negative and unequal impact of the coronavirus disease 2019 (COVID-19) pandemic on the financial well-being (FWB) of global populations. Personal financial strain (FS) worsened most significantly among systematically excluded groups. Targeted government- and community-led initiatives are needed to address these inequities. The purpose of this applied research was to identify what works for whom, under what conditions, and why in relation to community and government initiatives that promote personal and household FWB and/or address FS in high income economies.

METHODS

We employed a critical realist analysis to literature that reported on FWB/FS initiatives in high income countries. This included initiatives introduced in response to the pandemic as well as those that began prior to the pandemic. We included sources based on a rapid review. We coded academic, published literature (n=39) and practice-based (n=36) reports abductively to uncover generative mechanisms - ie, underlying, foundational factors related to community or government initiatives that either constrained and/or enabled FWB and FS.

RESULTS

We identified two generative mechanisms: (1) neoliberal ideology; and (2) social equity ideology. A third mechanism, social location (eg, characteristics of identity, location of residence), cut across the two ideologies and demonstrated for whom the initiatives worked (or did not) in what circumstances. Neoliberal ideology (ie, individual responsibility) dominated initiative designs, which limited the positive impact on FS. This was particularly true for people who occupied systematically excluded social locations (eg, low-income young mothers). Social equity-based initiatives were less common within the literature, yet mostly had a positive impact on FWB and produced equitable outcomes.

CONCLUSION

Equity-centric initiatives are required to improve FWB and reduce FS among systemically excluded and marginalized groups. These findings are of relevance now as nations strive for financial recovery in the face of the ongoing global pandemic.

The Geography of Pain in the United States and Canada

Pain epidemiologists have, thus far, devoted scant attention to geospatial analyses of pain.  Both cross-national and, especially, subnational variation in pain have been understudied, even though geographic comparisons could shed light on social factors that increase or mitigate pain. This study presents the first comparative analysis of pain in the U.S. and Canada, comparing the countries in aggregate, while also analyzing variation across states and provinces. Analyses are based on cross-sectional data collected in 2020 from U.S. and Canadian adults 18 years and older (N = 4,113). The focal pain measure is a product of pain frequency and pain interference. We use decomposition and regression analyses to link socioeconomic characteristics and pain, and inverse-distance weighting spatial interpolation to map pain levels. We find significantly and substantially higher pain in the U.S. than in Canada. The difference is partly linked to Americans' worse economic conditions. Additionally, we find significant pain variability within the U.S. and Canada. U.S. states in the Deep South, Appalachia, and parts of the West stand out as pain 'hotspots' with particularly high pain levels. Overall, our findings identify areas with a high need for pain prevention and management; they also urge further scholarship on geographic factors as important covariates in population pain. PERSPECTIVE: This study documents the high pain burden in the U.S. versus Canada, and points to states in the Deep South, Appalachia, and parts of the West as having particularly high pain burden. The findings identify geographic areas with a high need for pain prevention and management.

A comparison of health and socioeconomic gradients in health between the United States and Canada

Data from the early 2000s indicated worse overall health and larger socioeconomic (SES) health inequalities in the U.S. than in Canada. Yet, sociopolitical contexts, health levels, and SES-health inequalities have changed in both countries during the intervening two decades. Drawing on new data, we update the comparison of health levels and SES-health gradients between the two countries. Analyses, focused on self-rated health, are based on two complementary sets of data sources: Resilience and Recovery (RR) data, a harmonized U.S.-Canada survey of social conditions collected in 2020 (N = 3743); and a pair of leading nationally representative health data sources from each country: the National Health Interview Surveys (NHIS, N = 104,027) and the Canadian Community Health Survey (CCHS, N = 97,605), both collected in 2017-2018. Health levels and disparities, net of demographic and socioeconomic covariates, were estimated using modified Poisson models for relative comparisons; descriptives and predicted levels of fair/poor health show the comparisons from absolute perspective. Both data sources show that U.S. adults continue to have significantly worse health than Canadians; the disadvantage may be due to SES differences between the two populations. However, the two data sources yield conflicting findings on SES-health inequalities: the RR data indicate no difference between the two countries in socioeconomic health gradients, while the NHIS/CCHS data show a significantly steeper gradient in the U.S. than in Canada for both education and income. Canadian adults continue to report better health than their U.S. peers, but it is unclear whether health inequalities remain smaller as well. We discuss potential reasons for the conflicting findings and call for a large new cross-national data collection, which will enable scholars and policymakers to better understand health and wellbeing in the U.S. and Canadian contexts.

Now You Are Part of the Solution: Bioethicists' Contribution in Addressing Racialized Health Inequity

Neoliberalism (an economic approach emphasizing tax abatement, market deregulation, and social safety net reduction) promotes inequality and unfavorable health outcomes. These outcomes are exacerbated among racial and ethnic minorities, as this policy approach is often coupled with various forms of institutional racism. The combination of these factors translates into concerning population health disparities in the United States. More egalitarian policies could disproportionately affect the socially marginalized and help rectify these challenges. Given the social and cultural capital bioethicists have in the fields of medicine, public health, and policy, this group is uniquely positioned to help remediate racial and ethnic inequity. Moreover, the unique skill sets bioethicists employ (conflict resolution, mediation, negotiation, facilitating public engagement, policy analysis) can be useful to improving the health of the populous. Thus, bioethicists can play a key role in addressing the most concerning health challenges and inequities today.

Trends in socioeconomic inequalities in premature and avoidable mortality in Canada, 1991-2016

BACKGROUND

Recent epidemiologic findings suggest that socioeconomic inequalities in health may be widening over time. We examined trends in socioeconomic inequalities in premature and avoidable mortality in Canada.

METHODS

We conducted a population-based repeated cohort study using the 1991, 1996, 2001, 2006 and 2011 Canadian Census Health and Environment Cohorts. We linked individual-level Census records for adults aged 25-74 years to register-based mortality data. We defined premature mortality as death before age 75 years. For each census cohort, we estimated age-standardized rates, risk differences and risk ratios for premature and avoidable mortality by level of household income and education.

RESULTS

We identified 16 284 045 Census records. Between 1991 and 2016, premature mortality rates declined in all socioeconomic groups except for women without a high school diploma. Absolute income-related inequalities narrowed among men (from 2478 to 1915 deaths per 100 000) and widened among women (from 1008 to 1085 deaths per 100 000). Absolute education-related inequalities widened among men and women. Relative socioeconomic inequalities in premature mortality widened progressively over the study period. For example, the relative risk of premature mortality associated with the lowest income quintile increased from 2.10 (95% confidence interval [CI] 2.02-2.17) to 2.79 (95% CI 2.66-2.91) among men and from 1.72 (95% CI 1.63- 1.81) to 2.50 (95% CI 2.36-2.64) among women. Similar overall trends were observed for avoidable mortality.

INTERPRETATION

Socioeconomically disadvantaged groups have not benefited equally from recent declines in premature and avoidable mortality in Canada. Efforts to reduce socioeconomic inequalities and associated patterns of disadvantage are necessary to prevent this pattern of widening health inequalities from persisting or worsening over time.

Access to health care among racialised immigrants to Canada in later life: a theoretical and empirical synthesis

Evidence that immigrants tend to be underserved by the health-care system in the hosting country is well documented. While the impacts of im/migration on health-care utilisation patterns have been addressed to some extent in the existing literature, the conventional approach tends to homogenise the experience of racialised and White immigrants, and the intersecting power axes of racialisation, immigration and old age have been largely overlooked. This paper aims to consolidate three macro theories of health/behaviours, including Bronfenbrenner's ecological theory, the World Health Organization's paradigm of social determinants of health and Andersen's Behavioral Model of Health Service Use, to develop and validate an integrated multilevel framework of health-care access tailored for racialised older immigrants. Guided by this framework, a narrative review of 35 Canadian studies was conducted. Findings reveal that racial minority immigrants’ vulnerability in accessing health services are intrinsically linked to a complex interplay between racial-nativity status with numerous markers of power differences. These multilevel parameters range from socio-economic challenges, cross-cultural differences, labour and capital adequacy in the health sector, organisational accessibility and sensitivity, inter-sectoral policies, to societal values and ideology as forms of oppression. This review suggests that, counteracting a prevailing discourse of personal and cultural barriers to care, the multilevel framework is useful to inform upstream structural solutions to address power imbalances and to empower racialised immigrants in later life.

How Neoliberalism Shapes Indigenous Oral Health Inequalities Globally: Examples from Five Countries

Evidence suggests that countries with neoliberal political and economic philosophical underpinnings have greater health inequalities compared to less neoliberal countries. But few studies examine how neoliberalism specifically impacts health inequalities involving highly vulnerable populations, such as Indigenous groups. Even fewer take this perspective from an oral health viewpoint. From a lens of indigenous groups in five countries (the United States, Canada, Australia, Aotearoa/New Zealand and Norway), this commentary provides critical insights of how neoliberalism, in domains including colonialism, racism, inter-generational trauma and health service provision, shapes oral health inequalities among Indigenous societies at a global level. We posit that all socially marginalised groups are disadvantaged under neoliberalism agendas, but that this is amplified among Indigenous groups because of ongoing legacies of colonialism, institutional racism and intergenerational trauma.

Growing sense of social status threat and concomitant deaths of despair among whites

Background

A startling population health phenomenon has been unfolding since the turn of the 21st century. Whites in the United States, who customarily have the most favorable mortality profile of all racial groups, have experienced rising mortality rates, without a commensurate rise in other racial groups. The two leading hypotheses to date are that either contemporaneous economic conditions or longer-term (post-1970s) economic transformations have led to declining economic and social prospects of low-educated whites, culminating in “deaths of despair.” We re-examine these hypotheses and investigate a third hypothesis: mortality increases are attributable to (false) perceptions of whites that they are losing social status.

Methods

Using administrative and survey data, we examined trends and correlations between race-, age- and, education-specific mortality and a range of economic and social indicators. We also conducted a county-level fixed effects model to determine whether changes in the Republican share of voters during presidential elections, as a marker of growing perceptions of social status threat, was associated with changes in working-age white mortality from 2000 to 2016, adjusting for demographic and economic covariates.

Findings

Rising white mortality is not restricted to the lowest education bracket and is occurring deeper into the educational distribution. Neither short-term nor long-term economic factors can themselves account for rising white mortality, because parallel trends (and more adverse levels) of these factors were being experienced by blacks, whose mortality rates are not rising. Instead, perceptions – misperceptions – of whites that their social status is being threatened by their declining economic circumstances seems best able to reconcile the observed population health patterns.

Conclusion

Rising white mortality in the United States is not explained by traditional social and economic population health indicators, but instead by a perceived decline in relative group status on the part of whites – despite no actual loss in relative group position.

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Rising U.S. white mortality is wide-sweeping, spanning all education levels.

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Economic conditions of whites are declining in absolute, but not relative terms.

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Declining absolute economic conditions of whites do not explain their rising mortality.

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Rising white Mortality is better explained by perceived loss of relative status.

Is social assistance boosting the health of the poor? Results from Ontario and three countries

INTERVENTION

Social assistance programs supplement incomes of the most income-insecure. Because income is a fundamental source of health, income supplementation is expected to result in a boost to health status. As Canada finds itself in the midst of heated debate regarding the structuring (and restructuring) of social assistance programs, there is little evidence available for policymakers about the effectiveness of current social assistance programs in improving the health of the income-insecure.

RESEARCH QUESTION

In this paper, we evaluate the health effects of social assistance programs in Ontario, Canada-wide and in peer programs from the United States and the United Kingdom.

METHODS

We used nationally representative household panel surveys (e.g., Canadian Survey of Labour and Income Dynamics) which follow individuals over time. Using fixed effects modelling, which controls for time-invariant characteristics of individuals, and further controlling for key time-varying characteristics, we modelled change in health status associated with change in receipt of social assistance in these societies. Health status was measured using self-rated health (fair/poor versus good/very good/excellent).

RESULTS

Our results suggest that the health of social assistance recipients was worse (Ontario, Canada, UK) or no different (US) than the health of non-recipients. For example, in Canada, receipt of social assistance was associated with 52.5% higher odds of reporting fair or poor health.

CONCLUSION

Social assistance programs in Canada and peer countries are currently inadequate for improving the health of the income-insecure. This is likely due to insufficient benefits, exposure to precarious job conditions, or selection factors.

Widening health inequalities between the employed and the unemployed: A decomposition of trends in Canada (2000-2014)

Recent developments in the social epidemiological literature indicate that health inequalities between the employed and the unemployed are widening in many advanced capitalist countries. At present, we know relatively little about why these inequalities are worsening. Drawing on nationally-representative data from the largest health survey in Canada, we explored this question by analyzing changes in self-rated health inequalities between employed and unemployed Canadians from 2000 to 2014. Using a regression-based method that decomposes a given inequality into its component sources, we investigated the extent to which risk factors that account for unemployment-related health inequalities at a single point in time can also explain the extent and direction of change in these unemployment-related health inequalities over time. Our results indicate that relative and absolute health inequalities between employed and unemployed Canadians widened over the study period. Between 2000 and 2014, the prevalence of poor self-rated health among unemployed Canadians increased from 10.8% to 14.6%, while rates among employed Canadians were stable at around 6%. Our findings suggest that the demographic, socioeconomic, and proximal risk factors that are routinely used to explain unemployment-related health inequalities may not be as powerful for explaining how and why these inequalities change over time. In the case of unemployment-related health inequalities in Canada, these risk factors explain neither the increasing prevalence of poor self-rated health among the unemployed nor the growing gap between the unemployed and their employed counterparts. We provide several possible explanations for these puzzling findings. We conclude by suggesting that widening health inequalities may be driven by macrosocial trends (e.g. widening income inequality and declining social safety nets) which have changed the meaning and context of unemployment, as well as its associated risk factors, in ways that are not easy to capture using routinely available survey data.

Canadian report card on health equity across the life-course: Analysis of time trends and cross-national comparisons with the United Kingdom

Addressing social determinants of health (SDoH) has been acknowledged as an essential objective for the promotion of both population health and health equity. Extant literature has identified seven potential areas of investment to address SDoH: investments in sexual and reproductive health and family planning, early learning and child care, education, universal health care, as well as investments to reduce child poverty, ensure sustainable economic development, and control health hazards. The aim of this paper is to produce a ‘report card’ on Canada’s success in reducing socioeconomic and health inequities pertaining to these seven policy domains, and to assess how Canadian trends compare to those in the United Kingdom (UK), a country with a similar health and welfare system. Summarising evidence from published studies and national statistics, we found that Canada’s best successes were in reducing socioeconomic inequalities in early learning and child care and reproductive health—specifically in improving equity in maternal employment and infant mortality. Comparative data suggest that Canada’s outcomes in the latter areas were like those in the UK. In contrast, Canada’s least promising equity outcomes were in relation to health hazard control (specifically, tobacco) and child poverty. Though Canada and the UK observed similar inequities in smoking, Canada’s slow upward trend in child poverty prevalence is distinct from the UK’s small but steady reduction of child poverty. This divergence from the UK’s trends indicates that alternative investment types and levels may be needed in Canada to achieve similar outcomes to those in the UK.

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We summarize trends in health equity in Canada and compare Canadian trends to those in the United Kingdom (UK).

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Trends were assessed according to seven previously-identified domains of societal-level investments.

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Canada’s best improvements were in early learning and care and reproductive health. Trends were similar to those in the UK.

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Canadian equity trends in employment and universal health care were stable, and outperformed by those in the UK.

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Canada’s least promising trends were in smoking and child poverty. Unlike in the UK, child poverty has increaesd in Canada.

Health Care Public Sector Share and the U.S. Life Expectancy Lag: A Country-level Longitudinal Study

Growing research on the political economy of health has begun to emphasize sociopolitical influences on cross-national differences in population health above and beyond economic growth. While this research investigates the impact of overall public health spending as a share of GDP ("health care effort"), it has for the most part overlooked the distribution of health care spending across the public and private spheres ("public sector share"). I evaluate the relative contributions of health care effort, public sector share, and GDP to the large and growing disadvantage in U.S. life expectancy at birth relative to peer nations. I do so using fixed effects models with data from 16 wealthy democratic nations between 1960 and 2010. Results indicate that public sector share has a beneficial effect on longevity net of the effect of health care effort and that this effect is nonlinear, decreasing in magnitude as levels rise. Moreover, public sector share is a more powerful predictor of life expectancy at birth than GDP per capita. This study contributes to discussions around the political economy of health, the growth consensus, and the American lag in life expectancy. Policy implications vis-à-vis the U.S. Affordable Care Act are discussed.

Associations between race, discrimination and risk for chronic disease in a population-based sample from Canada

A major epidemiological finding emerging from studies using U.S. samples is that racial differences in experiences of discrimination are associated with racial differences in health. A newer area of research is exploring the population-level dynamics between race, discrimination, and health status in various societies. The objective of this study is to assess for the first time in a national sample from Canada: (a) racial differences in experiences of discrimination and, (b) the association between discrimination and chronic conditions and their major risk factors. Data were obtained from the 2013 Canadian Community Health Survey (n = 16,836). Race was categorized as Aboriginal, Asian, Black, or White. Discrimination was measured using the Williams Everyday Discrimination Scale. Outcomes included having any chronic condition or major risk factors (obesity, hypertension, smoking, binge drinking, infrequent physical activity, and poor self-rated health). Crude and adjusted (for age, sex, immigrant status, socioeconomics) logistic regressions modeled the association between (a) race and discrimination and, (b) discrimination and each outcome. Results indicated that Blacks were most likely to experience discrimination, followed by Aboriginals. For example, Blacks were almost twice as likely (OR: 1.92, 95% CI: 1.19-3.11), and Aboriginals 75 percent more likely (OR: 1.75, 95% CI: 1.37-2.22) to report being treated with less courtesy or respect than others. Blacks were more than four times as likely (OR: 4.27, 95% CI: 2.23-8.19), and Aboriginals more than twice as likely (OR: 2.26, 95% CI: 1.66-3.08) to report being feared by others. Asians were not statistically different from Whites. With two exceptions (binge drinking and physical activity), discrimination was associated with chronic conditions and their risk factors (OR for any chronic condition: 1.78, 95% CI: 1.52-2.08). Initial results suggest that in Canada, experience of discrimination is a determinant of chronic disease and chronic disease risk factors, and Blacks and Aboriginals are far more exposed to experiences of discrimination.

Healthcare inequality issues among immigrant elders after neoliberal welfare reform: empirical findings from the United States

Even with the increasing importance being placed on research into immigrant elders' healthcare use as countries change their policies to reflect their increasing immigrant and aging populations, little research has examined changes in healthcare use disparities between immigrant and native elders in relation to these policy changes. To fill this gap in the literature, this study examined healthcare disparities in relation to the welfare reform that the US implemented in 1996 and then compared significant indicators of immigrants' healthcare use during the pre- and post-reform periods. The difference-in-difference (DD) analyses and post hoc probing of the DD analyses were used in multivariate logistic regression of the National Health Information Survey data that were pooled for the pre- and post-reform periods. The results revealed that while inequalities in healthcare existed before the reform, they significantly increased after the reform. A further test showed that the changes in the inequalities were significant among relatively long-stay immigrants, but not significant among immigrants who entered the US before the reform and thus were exempted from the reform restrictions. During the pre-reform period, insurance, employment, sex, and race/ethnicity were related to healthcare use; however, the enabling factors (i.e., insurance, income, and education) and social structural factors (i.e., marital status, family structure, length of US residency, race/ethnicity, and geographical region) explained the post-reform immigrants' healthcare use, while controlling for healthcare needs factors. These findings suggest that welfare reform may be the driving force of inequalities in healthcare.

Equally inequitable? A cross-national comparative study of racial health inequalities in the United States and Canada

Prior research suggests that racial inequalities in health vary in magnitude across societies. This paper uses the largest nationally representative samples available to compare racial inequalities in health in the United States and Canada. Data were obtained from ten waves of the National Health Interview Survey (n = 162,271,885) and the Canadian Community Health Survey (n = 19,906,131) from 2000 to 2010. We estimated crude and adjusted odds ratios, and risk differences across racial groups for a range of health outcomes in each country. Patterns of racial health inequalities differed across the United States and Canada. After adjusting for covariates, black-white and Hispanic-white inequalities were relatively larger in the United States, while aboriginal-white inequalities were larger in Canada. In both countries, socioeconomic factors did not explain inequalities across racial groups to the same extent. In conclusion, while racial inequalities in health exist in both the United States and Canada, the magnitudes of these inequalities as well as the racial groups affected by them, differ considerably across the two countries. This suggests that the relationship between race and health varies as a function of the societal context in which it operates.

Towards an understanding of the structural determinants of oral health inequalities: A comparative analysis between Canada and the United States

Objective

To compare the magnitude of, and contributors to, income-related inequalities in oral health outcomes within and between Canada and the United States over time.

Methods

The concentration index was used to estimate income-related inequalities in three oral health outcomes from the Nutrition Canada National Survey 1970–1972, Canadian Health Measures Survey 2007–2009, Health and Nutrition Examination Survey I 1971–1974, and National Health and Nutrition Examination Survey 2007–2008. Concentration indices were decomposed to determine the contribution of demographic and socioeconomic factors to oral health inequalities.

Results

Our estimates show that over time in both countries, inequalities in decayed teeth and edentulism were concentrated among the poor and inequalities in filled teeth were concentrated among the rich. Over time, inequalities in decayed teeth increased and decreased for measures of filled teeth and edentulism in both countries. Inequalities were higher in the United States compared to Canada for filled and decayed teeth outcomes. Socioeconomic characteristics (education, income) contributed greater to inequalities than demographic characteristics (age, sex). As well, income contributed more to inequalities in recent surveys in both Canada and the United States.

Conclusions

Inequalities in oral health have persisted over the past 35 years in Canada and the United States, and are associated with age, sex, education, and income and have varied over time.

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Highlights changes and contributors to oral health inequalities in Canada and the U.S. since 1970.

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Provides a comparative framework for analysing income-related oral health inequalities.

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Hypotheses-generating findings on contributors to income-related oral health inequalities.

Access to primary care in adults in a provincial correctional facility in Ontario

Background

Little is known about access to primary care either prior to or following incarceration in Canada. International data demonstrate that the health of people in prisons and jails is poor, and access to primary care in the community may be inadequate for incarcerated persons. We aimed to describe the primary care experience of adults in custody in a provincial correctional facility in Ontario in the 12 months prior to admission.

Methods

We conducted a written survey, and invited all persons in the institution to participate, excluding those in segregation.

Results

One hundred and twenty-five persons participated, 16.8 % of whom were women. The median age was 33. In the 12 months prior to admission to custody, 32.2 % (95 % CI 23.5–40.8 %) of respondents did not have a family doctor or other primary care provider and 48.2 % (95 % CI 38.8–57.6 %) had unmet health needs. Participants reported a mean of 2.1 (SD = 2.8) emergency department visits in the 12 months prior to admission.

Conclusions

Study participants report a lack of access to primary care, a high mean number of emergency department visits, and high unmet health care needs in the 12 months prior to incarceration. Time in custody may present an opportunity for connecting this population with primary care and improving health.

Social Inequality in Population Developmental Health: An Equity and Justice Issue

The conceptual framework for this chapter focuses on outcomes in developmental health as a key indicator of equity. Not all disparities in developmental health are indicators of a failure of equity and justice, but those that are clearly linked to social patterns in theoretically coherent and empirically substantial ways serve as a powerful diagnostic tool. They are especially diagnostic when they point to social factors that are remediable, especially in comparison to societies in which such social disparities are sharply lower (Keating, Siddiqi, & Nguyen, 2013). In this chapter, I review the theoretical links and empirical evidence supporting this central claim and propose that there is strong evidence for the following critical links: (a) there is a compelling empirical connection between disparities in social circumstances and disparities in developmental health outcomes, characterized as a social gradient effect; (b) "drilling down" reveals the core biodevelopmental mechanisms that yield the social disparities that emerge across the life course; (c) in turn, life course effects on developmental health have an impact on societies and populations that are revealed by "ramping up" the research to consider international comparisons of population developmental health; and (d) viewing this integrated evidence through the lens of equity and justice helps to break the vicious cycle that reproduces social inequality in a distressingly recurring fashion.

Cross-national comparison of socioeconomic inequalities in obesity in the United States and Canada

INTRODUCTION

Prior cross-national studies of socioeconomic inequalities in obesity have only compared summary indices of inequality but not specific, policy-relevant dimensions of inequality: (a) shape of the socioeconomic gradient in obesity, (b) magnitude of differentials in obesity across socioeconomic levels and, (c) level of obesity at any given socioeconomic level. We use unique data on two highly comparable societies - U.S. and Canada - to contrast each of these inequality dimensions.

METHODS

Data came from the 2002/2003 Joint Canada/U.S. Survey of Health. We calculated adjusted prevalence ratios (APRs) for obesity (compared to normal weight) by income quintile and education group separately for both nations and, between Canadians and Americans in the same income or education group.

RESULTS

In the U.S., every socioeconomic group except the college educated had significant excess prevalence of obesity. By contrast in Canada, only those with less than high school were worse off, suggesting that the shape of the socioeconomic gradient differs in the two countries. U.S. differentials between socioeconomic levels were also larger than in Canada (e.g., PR quintile 1 compared to quintile 5 was 1.82 in the U.S. [95 % CI: 1.52-2.19] but 1.45 in Canada [95 % CI: 1.10-1.91]). At the lower end of the socioeconomic gradient, obesity was more prevalent in the U.S. than in Canada.

CONCLUSIONS

Our results suggest there is variation between U.S. and Canada in different dimensions of socioeconomic inequalities in obesity. Future research should examine a broader set of nations and test whether specific policies or environmental exposures can explain these differences.

Does Social Context Matter? Income Inequality, Racialized Identity, and Health Among Canada's Aboriginal Peoples Using a Multilevel Approach

OBJECTIVES

Debates surrounding the importance of social context versus individual level processes have a long history in public health. Aboriginal peoples in Canada are very diverse, and the reserve communities in which they reside are complex mixes of various cultural and socioeconomic circumstances. The social forces of these communities are believed to affect health, in addition to individual level determinants, but no large scale work has ever probed their relative effects. One aspect of social context, relative deprivation, as indicated by income inequality, has greatly influenced the social determinants of health landscape. An investigation of relative deprivation in Canada's Aboriginal population has never been conducted. This paper proposes a new model of Aboriginal health, using a multidisciplinary theoretical approach that is multilevel.

METHODS

This study explored the self-rated health of respondents using two levels of determinants, contextual and individual. Data were from the 2001 Aboriginal Peoples Survey. There were 18,890 Registered First Nations (subgroup of Aboriginal peoples) on reserve nested within 134 communities. The model was assessed using a hierarchical generalized linear model.

RESULTS

There was no significant variation at the contextual level. Subsequently, a sequential logistic regression analysis was run. With the sole exception culture, demographics, lifestyle factors, formal health services, and social support were significant in explaining self-rated health.

CONCLUSIONS

The non-significant effect of social context, and by extension relative deprivation, as indicated by income inequality, is noteworthy, and the primary role of individual level processes, including the material conditions, social support, and lifestyle behaviors, on health outcomes is illustrated. It is proposed that social structure is best conceptualized as a dynamic determinant of health inequality and more multilevel theoretical models of Aboriginal health should be developed and tested.

Neighbourhood immigrant concentration and hospitalization: a multilevel analysis of cardiovascular-related admissions in Ontario using linked data

OBJECTIVE

To assess the influence of neighbourhood immigrant concentration on cardiovascular-disease-related hospitalizations in Canada (CVDH), while adjusting for individual-level immigrant status and socio-economic indicators at individual and neighbourhood levels.

METHODS

Data were from the 2006 Canadian Census linked to the hospital Discharge Abstract Data (DAD) for the province of Ontario. Adults (n=1,459,950) aged ≥18 years at baseline and grouped by place of birth (Canada, China, South Asia, Europe, and other) were followed between Census Day May 16, 2006 and March 31, 2008. Information on CVDH was obtained from the DAD, while that on immigration and socio-economic indicators was obtained from the Census. The analysis used multilevel logistic regression.

RESULTS

Unadjusted results showed that CVDH was significantly lower among people living in neighbourhoods with medium and high immigrant concentration. Neighbourhood immigrant concentration tended to have no independent effect on CVDH after adjustment for individual-level immigrant status. Immigrants were less likely to experience CVDH irrespective of their country of birth. However, cross-level interaction showed that neighbourhood immigrant concentration provided additional protection to individual-level immigrant status against CVDH for most female immigrant groups, but only for South Asian males.

CONCLUSION

This study resulted from the first-ever linkage of census data to hospitalization data in Canada. It is also the first Canadian study to report on neighbourhood variation and the effect of immigrant concentration on CVDH. The study shows that understanding immigrant health requires both individual and neighbourhood approaches, and a consideration of country of origin.