Socioeconomic inequalities in deaths of despair: Age heterogeneity in Canada's working age population

PURPOSE

Although prior literature documented socioeconomic inequalities in deaths of despair among working age population, it is unclear whether and how (a) the link between socioeconomic status and deaths of despair differs by age (b) each measure of socioeconomic status has independent effects on deaths of despair. This study aims to reduce these knowledge gaps.

METHODS

Using data from a large scale nationally representative linked dataset (2011 Canadian Census Health and Environment Cohorts), this study employed Fine-Gray subdistribution hazard models to estimate the link between socioeconomic status and deaths of despair due to suicide, drug overdose, and alcoholic liver disease among working age population (N = 4,076,530). Age stratified analysis was conducted to examine age heterogeneity.

RESULTS

Socioeconomic status, such as housing tenure, employment status, household income, and education level, was associated with deaths of despair among working age population. Age differences in the association between socioeconomic status and deaths of despair were found. While education level was pronounced for deaths of despair for younger adults, a combination of socioeconomic status was significantly associated with deaths of despair for those in late adulthood.

CONCLUSIONS

Socioeconomic inequalities in deaths of despair are manifest among Canadian working age population. This study lends support the social and health policies aimed at reducing gaps in mortalities.

Income inequality and deaths of despair risk in Canada, identifying possible mechanisms

BACKGROUND

Declines in life expectancy in developed countries have been attributed to increases in drug-related overdose, suicide, and liver cirrhosis, collectively referred to as deaths of despair. Income inequality is proposed to be partly responsible for increases in deaths of despair rates. This study investigated the associations between income inequality, deaths of despair risk in Canada, and potential mechanisms (stress, social cohesion, and access to health services).

METHODS

We obtained data from the Canadian Community Health Survey and the Canadian Vital Statistics Database from 2007 to 2017. A total of 504,825 Canadians were included in the analyses. We used multilevel survival analyses, as measured by the Gini coefficient, to examine the relationships between income inequality and mortality attributed to drug overdose, suicide, death of despair, and all-cause. We then used multilevel path analyses to investigate whether each mediator (stress, social cohesion, and access to mental health professionals), which were investigated using separate mediation models, influenced the relationship between income inequality and drug overdose, suicide, deaths of despair, and all-cause death.

RESULTS

Adjusted multilevel survival analyses demonstrated significant relationships between a one-SD increase in Gini coefficient was associated with an increased hazard for drug overdose (HRadj. = 1.28; 95 CI = 1.05, 1.55), suicide (HRadj. = 1.24; 95 CI = 1.06, 1.46), deaths of despair (HRadj. = 1.26; 95 CI = 1.12, 1.40), and all-cause death (HRadj. = 1.04; 95 CI = 1.02, 1.07). Adjusted path analyses indicated that stress, social cohesion, and access to mental health professionals significantly mediated the association between income inequality and mortality outcomes.

CONCLUSION

Income inequality is associated with deaths of despair and this relationship is mediated by stress, social cohesion, and access to mental health professionals. Findings should be applied to develop programs to address income inequality in Canada.

Socio-economic vulnerability and deaths of despair in Brazilian counties

Over the past few years, there has been a progressive increase in premature deaths attributable to suicide, drug overdose, and alcohol-related liver disease that impact life expectancy. Regarding the relationship with contextual effects, the evidence is developing, especially in countries with a peripheral economy, as is the case of Brazil. We carried out an analysis aimed at estimating the relationship between socioeconomic insecurity and deaths due to despair in Brazilian cities. We used 5,570 counties' data to create clusters concerning socioeconomic development and then analyzed age-adjusted mortality rates (ASMR) from each of them and compared them using the ANOVA test. Cluster analysis generated two groups of Brazilian municipalities. DoD rates are consistently higher in the group that experiences more deprivation. However, considering differences between 2010 and 2019, the increase in rates was higher in the group with less deprivation experience (48.82 % vs. 39.53 %) We verified an existing gap between the clusters before the beginning of economic stagnation in 2010 The gap between those two groups decreased from 20.58 % (p < 0.001) in 2010 to 14.03 % in 2019 (p = 0.034). The conjuncture of economic crises creates mortality differentials in certain population groups. Also, significant inequalities explain how causes of death from despair affect different subpopulations. Our first approach assessed this assumption, and we could check those differentials at an ecological level. Public policies should focus on reducing the difference in mortality from despair between higher and lower socioeconomic strata.

Risk factors for deaths of despair in England: An ecological study of local authority mortality data

Deaths of Despair (DoD) are socially patterned fatalities encompassing those attributable to drug and alcohol misuse and suicide. DoD occur much more frequently in socially deprived communities. This ecological study aimed to yield new knowledge on the spatial distribution of DoD, and socioeconomic factors that predict DoD risk in England. Via ICD-10 coding, deaths nationally during 2019-2021 were classified to non-overlapping categories of drug-related death, alcohol-specific death, and suicide. The proportion of DoD from each of these causes was calculated and age standardised DoD rates were generated for local authorities. A multivariable regression model for DoD risk was developed using 25 socioeconomic indicators. In 2019-2021, an estimated 46,200 people lost their lives due to DoD. Rates were higher in the North and in coastal areas (p < 0.001), ranging regionally from 25.1/100,000 (SD 6.3) in London to 54.7/100,000 (SD 9.5) in the North East. Alcohol-specific deaths were the largest contributor of DoD, accounting for 44.1% (95%CI 43.5-44.8%) of all such deaths. Living in the North, unemployment, White British ethnicity, living alone, economic inactivity, employment in elementary occupations, and living in urban areas were significantly associated with elevated DoD risk. DoD in England are spatially patterned, with northern regions experiencing a much higher burden of mortality from these avoidable causes. This study provides novel insights into the area-level factors associated with DoD in England. Potential ecological error is a key limitation.

The needle and the damage done: Deaths of despair, economic precarity, and the white working-class

Economic insecurity has grown in the United States since the 1970s impacting all segments of the working-class, including previously insulated sub-groups such as non-Hispanic whites. Moreover, the white working-class has experienced a surge in socio-cultural isolation, and disengagement with societal institutions. This analysis focuses on the health consequences of these developments, with a particular emphasis on the rising "deaths of despair" (suicide, drug poisoning, alcohol related). These deaths have been increasing since the mid-1990s and, at least until recently, tended to be clustered amongst whites without a four-year college degree. Various competing explanations have been put forth, emphasizing distinct factors such as material conditions, socio-cultural dynamics, and accessibility to opioids. Using a series of linear models this analysis examines the county-level association between economic precarity, white working-class population size, opioid accessibility, and deaths of despair. Results affirm the net effect of each predictor and illuminate an interactive relationship between opioid accessibility and precarity, as well as an interactive relationship between all three predictors. By undertaking an interdisciplinary synthesis of existing research, this study contributes to the understanding of the social determinants of mortality while providing crucial insights into an ongoing crisis in contemporary America.

Disentangling opioids-related overdose syndemics: a scoping review

This article reviews research investigating the synergistic interaction of opioid-related morbidity and mortality with other social, psychiatric, and biological conditions, to describe how and why it is syndemic. Opioid-related overdose syndemics are driven by commercial interests, emerging in communities facing social and economic disadvantage, and interacting with a range of other health conditions. We included articles that empirically investigated an opioid-related syndemic, discussed syndemic co-factors associated with opioid use, or framed opioid consumption conceptually in relation to syndemics. Most articles were conducted in and first authored by investigators from North America. These articles were published in journals focused on general public health (n = 20), drug use and addiction (n = 18), and infectious disease or HIV (n = 15). Most original research articles (n = 60) employed quantitative methods. Unlike scholarship from other disciplines, specifically the controversial "Deaths of Despair" (DoD) framework, most research on opioid-related overdose syndemics fails to fully articulate the macro-structural drivers of localized disease clustering. Instead, the syndemics scholarship emphasizes the clinical manifestations of opioid and substance use, illustrating a problem in translation at the heart of syndemic theory. Moreover, syndemics scholarship on opioid impacts remains largely disconnected from the wider DoD discourse, which represents a missed opportunity for equity-oriented research. Re-directing attention to the sociopolitical forces that shape opioid-related overdose syndemics is necessary to prevent future commercially-driven health crises and repair lives harmed by these deadly syndemics.

Opioids ease my pain: Early-life malnutrition and elderly outcomes

Despite a large body of evidence showing that early-life malnutrition influences adult outcomes, there is no evidence that early-life starvation causes use of opioids. Studying the long-term effects of a food shortage in Iran caused by WWII, we find that the rate of people who use drugs in this cohort increased significantly higher than in surrounding cohorts. Then, we examine a broad spectrum of outcomes for this cohort to shed light on potential causes of opioid use in the survivors of this cohort. Our findings suggest that pain contributes significantly to opioid use.

The Tsunamic Model of LGBTQ+ Deaths of Despair: A Systemic Review to Identify Risk Factors for Deaths of Despair Among LGBTQ+ People

The term Deaths of Despair (DOD) was introduced to capture the phenomenon of mortality associated with suicide, drug overdose, and alcoholic liver disease. The LGBTQ+ population consistently evidences disproportionately high rates of DOD. This study reviewed the literature on DOD within this community to create a conceptual model that identifies risk factors that work together to potentiate DOD in the LGBTQ+ community. Ten DOD-Related Factors were identified and used to create The Tsunamic Model of LGBTQ+ Deaths of Despair. DOD-Related Factors include: (1) Stigma, (2) Demographics, (3) Identity Development, (4) Internalized Homophobia, (5) Depression, (6) Victimization, (7) Isolation/Rejection, (8) Sensation Seeking, (9) Risky Behavior, and (10) Uninformed Care. Each factor is associated with increased risk for DOD among the LGBTQ+ community. This model can help health professionals by providing a framework for prevention and early intervention programs.

Racial disparities in alcohol-related liver disease mortality in a 75 year follow-up study of Michigan autoworkers

Background

Suicide, drug overdose, and alcohol-related liver disease (ALD) mortality have been rising in the United States. While suicide and overdose have received a great deal of attention, far less public health concern has focused on chronic ALD. To address this gap, we examine ALD mortality rates, by race, in a cohort of autoworkers to describe trends over the past 75 years, from the peak in automobile manufacturing employment through its decline.

Methods

Based on the United Autoworkers-General Motors (UAW-GM) cohort we estimated temporal trends in age-adjusted ALD mortality rates from 1941 through 2015 at three automobile manufacturing plants in Michigan. We compared these rates to county, state, and U.S. rates, directly standardized to the 2000 U.S. census, to assess the roles of race and employment on ALD mortality.

Results

The overall age-adjusted ALD mortality rate among 41,097 male autoworkers peaked at 46.1 per 100,000 in the 1970s, followed by a gradual decline and a recent rise. Rates were slightly higher for black than white men until early 2000s, when rates increased only for white men. ALD mortality rates in the study cohort tracked national, state, and county rates for white men until the most recent time period, but were lower throughout the study period for black men, especially in the 1970s and 1980s.

Conclusions

Employment in automobile manufacturing may have offered some protection against death from ALD for black men, and loss of those manufacturing jobs may have impacted white men without a college degree more in recent decades.

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In a cohort of autoworkers, the alcohol-related liver disease (ALD) mortality rate has declined from its peak in the 1970s.

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ALD mortality was lower for black male autoworkers than for black men in the general population of the county, state, or US.

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ALD mortality was higher for black than white male autoworkers until 2000, when rates increased only for white autoworkers.

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Union jobs in Michigan automobile manufacturing may have offered some protection against risk of ALD for black men.

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Recent loss of US manufacturing jobs may have impacted white men more than black men without a college degree.

Deaths of despair: cause-specific mortality and socioeconomic inequalities in cause-specific mortality among young men in Scotland

Background

Increasing mortality among men from drugs, alcohol and suicides is a growing public health concern in many countries. Collectively known as “deaths of despair”, they are seen to stem from unprecedented economic pressures and a breakdown in social support structures.

Methods

We use high-quality population wide Scottish data to calculate directly age-standardized mortality rates for men aged 15–44 between 1980 and 2018 for 15 leading causes of mortality. Absolute and relative inequalities in mortality by cause are calculated using small-area deprivation and the slope and relative indices of inequality (SII and RII_L) for the years 2001–2018.

Results

Since 1980 there have been only small reductions in mortality among men aged 15–44 in Scotland. In that period drug-related deaths have increased from 1.2 (95% CI 0.7–1.4) to 44.9 (95% CI 42.5–47.4) deaths per 100,000 and are now the leading cause of mortality. Between 2001 and 2018 there have been small reductions in absolute but not in relative inequalities in all-cause mortality. However, absolute inequalities in mortality from drugs have doubled from SII = 66.6 (95% CI 61.5–70.9) in 2001–2003 to SII = 120.0 (95% CI 113.3–126.8) in 2016–2018. Drugs are the main contributor to inequalities in mortality, and together with alcohol harm and suicides make up 65% of absolute inequalities in mortality.

Conclusions

Contrary to the substantial reductions in mortality across all ages in the past decades, deaths among young men are increasing from preventable causes. Attempts to reduce external causes of mortality have focused on a single cause of death and not been effective in reducing mortality or inequalities in mortality from external causes in the long-run. To reduce deaths of despair, action should be taken to address social determinants of health and reduce socioeconomic inequalities.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12939-020-01329-7.

Can Labor Market Policies Reduce Deaths of Despair?

Do minimum wages and the earned income tax credit (EITC) mitigate rising "deaths of despair?" We leverage state variation in these policies over time to estimate event study and difference-in-differences models of deaths due to drug overdose, suicide, and alcohol-related causes. Our causal models find no significant effects on drug or alcohol-related mortality, but do find significant reductions in non-drug suicides. A 10 percent minimum wage increase reduces non-drug suicides among low-educated adults by 2.7 percent, and the comparable EITC figure is 3.0 percent. Placebo tests and event-study models support our causal research design. Increasing both policies by 10 percent would likely prevent a combined total of more than 700 suicides each year.

Trends in U.S. Working-Age non-Hispanic White Mortality: Rural-Urban and Within-Rural Differences

After decades of lower or comparable mortality rates in rural than in urban areas of the U.S., numerous studies have documented a rural mortality penalty that started in the 1990s and has grown since the mid-2000s. The widening of the gap appears to be especially pronounced among non-Hispanic (NH) whites. However, the rural U.S. is not monolithic, and some rural places have experienced much larger mortality rate increases than others over the past 30 years. Drawing on restricted mortality files from the National Vital Statistics System (NVSS), I examine metro versus nonmetro and intra-nonmetro (divisional and economic dependency) all-cause and cause-specific mortality trends among working-age (25–64) NH white males and females, 1990–2018. Results show that the nonmetro mortality penalty is wide and growing and is pervasive across multiple disease and injury categories. Trends for females are particularly concerning. Smaller nonmetro declines in mortality from cancers and cardiovascular disease (throughout the 1990s and 2000s) and larger increases in metabolic and respiratory diseases, suicide, alcohol-related, and mental/behavioral disorders (throughout the 2010s) collectively drove the growth in the nonmetro disadvantage. There are also large divisional disparities (which are growing for females), with particularly poor trends in New England, South Atlantic, ES Central, WS Central, and Appalachia and more favorable trends in the Mid-Atlantic, Mountain, and Pacific. Mining-dependent counties have diverged from the other economic dependency types since the mid-2000s due to multiple causes of death, whereas farming counties have comparatively lower mortality rates. High and rising mortality rates across a variety of causes and rural places, some of which have been occurring since the 1990s and others that emerged more recently, suggest that there is not one underlying explanation. Instead, systemic failures across a variety of institutions and policies have contributed to rural America’s troubling mortality trends generally and within-rural disparities more specifically.

Occupation, employment status, and "despair"-associated mortality risk among working-aged U.S. adults, 1997-2015

The recent rise in U.S. midlife mortality has been conceptualized as a "working-class" crisis, defined by increasing mortality among blue-collar and/or unemployed workers and the decline of manual labor; yet research on the topic overwhelmingly focuses on educational attainment as the key socioeconomic determinant of midlife mortality, especially among "despair"-related deaths. The present study addresses this gap by using data on 360,146 adults ages 25-64 from restricted-use National Health Interview Survey-Linked Mortality Files (1997-2015; average follow-up 9.87 years) to estimate associations between individuals' occupation and employment status and alcoholic liver disease, suicide, or accidental poisoning mortality risk, net of confounders. Adults in service, manual labor, and transport occupations exhibited two-to-three times the risk of mortality from accidental poisonings compared to those in managerial/administrative positions. Notably, health professionals exhibited the highest accidental poisoning mortality risks. Relative to managerial/administrative professionals, adults not in the labor force had double the suicide risk and nearly seven times the accidental poisoning risk, net of confounders. Unemployed adults and those having never worked also had elevated risks from accidental poisoning mortality. Critically, the fact that individuals' occupations and employment status are independently associated with midlife mortality due to deaths of despair - especially accidental poisoning - highlights the need for measures of socioeconomic status beyond educational attainment and income in understanding rising midlife mortality. Moreover, policies addressing working-aged mortality must target particular workplace contexts and the consequences of unemployment, both of which affect a large and growing segment of the working-aged U.S. population.

Global Burden of Disease and the Impact of Mental and Addictive Disorders

PURPOSE OF REVIEW

This contribution reviews the newest empirical evidence regarding the burden of mental and addictive disorders and weighs their importance for global health in the first decades of the twenty-first century.

RECENT FINDINGS

Mental and addictive disorders affected more than 1 billion people globally in 2016. They caused 7% of all global burden of disease as measured in DALYs and 19% of all years lived with disability. Depression was associated with most DALYs for both sexes, with higher rates in women as all other internalizing disorders, whereas other disorders such as substance use disorders had higher rates in men. Mental and addictive disorders affect a significant portion of the global population with high burden, in particular in high- and upper-middle-income countries. The relative share of these disorders has increased in the past decades, in part due to stigma and lack of treatment. Future research needs to better analyze the role of mental and addictive disorders in shifts of life expectancy.