Cancer health disparities in racial/ethnic minorities in the United States

There are well-established disparities in cancer incidence and outcomes by race/ethnicity that result from the interplay between structural, socioeconomic, socio-environmental, behavioural and biological factors. However, large research studies designed to investigate factors contributing to cancer aetiology and progression have mainly focused on populations of European origin. The limitations in clinicopathological and genetic data, as well as the reduced availability of biospecimens from diverse populations, contribute to the knowledge gap and have the potential to widen cancer health disparities. In this review, we summarise reported disparities and associated factors in the United States of America (USA) for the most common cancers (breast, prostate, lung and colon), and for a subset of other cancers that highlight the complexity of disparities (gastric, liver, pancreas and leukaemia). We focus on populations commonly identified and referred to as racial/ethnic minorities in the USA-African Americans/Blacks, American Indians and Alaska Natives, Asians, Native Hawaiians/other Pacific Islanders and Hispanics/Latinos. We conclude that even though substantial progress has been made in understanding the factors underlying cancer health disparities, marked inequities persist. Additional efforts are needed to include participants from diverse populations in the research of cancer aetiology, biology and treatment. Furthermore, to eliminate cancer health disparities, it will be necessary to facilitate access to, and utilisation of, health services to all individuals, and to address structural inequities, including racism, that disproportionally affect racial/ethnic minorities in the USA.

Relationships between allostatic load, unhealthy behaviors, and depressive disorder in U.S. adults, 2005-2012 NHANES

Unhealthy behaviors may modify relationships between chronic stress and depression among diverse older adults. We analyzed nationally representative cross-sectional data from participants aged 40-79 years of the 2005-2012 National Health and Nutrition Examination Survey. Unhealthy behaviors included current smoking, excessive/binge drinking, insufficient physical activity, and fair/poor diet. Allostatic load was defined by 10 biomarkers indicating the cumulative physiologic burden of stress. Depressive disorder was assessed using the Patient Health Questionnaire. Multivariable logistic regression examined whether current smoking, excessive/binge drinking, insufficient physical activitiy, and fair/poor diet modified relationships between allostatic load and depressive disorder. Mean age of 12,272 participants was 55.6 years (standard error = 0.19), 51.9% were women, and most had at least a high school education (81.8%). Latinos (11.3%) and African Americans (10.4%) were more likely than Whites (7.1%; p < 0.001) to meet depressive disorder criteria. Allostatic load was not associated independently with depressive disorder in any racial/ethnic group and this lack of a relationship did not differ by the extent of unhealthy behaviors. Although Latinos and African Americans report higher levels of depression than Whites, physiological markers of stress do not appear to explain these differences.

Infant and Youth Mortality Trends by Race/Ethnicity and Cause of Death in the United States

IMPORTANCE

The United States has higher infant and youth mortality rates than other high-income countries, with striking disparities by racial/ethnic group. Understanding changing trends by age and race/ethnicity for leading causes of death is imperative for focused intervention.

OBJECTIVE

To estimate trends in US infant and youth mortality rates from 1999 to 2015 by age group and race/ethnicity, identify leading causes of death, and compare mortality rates with Canada and England/Wales.

DESIGN, SETTING, AND PARTICIPANTS

This descriptive study analyzed death certificate data from the US National Center for Health Statistics, Statistics Canada, and the UK Office of National Statistics for all deaths among individuals younger than 25 years. The study took place from January 1, 1999, to December 31, 2015, and analyses started in September 2017.

EXPOSURES

Race/ethnicity.

MAIN OUTCOMES AND MEASURES

Average annual percent changes in mortality rates from 1999 to 2015 and absolute rate change between 1999 to 2002 and 2012 to 2015 for each age group, race/ethnicity, and cause of death.

RESULTS

Among individuals from birth to age 24 years, 1 169 537 deaths occurred in the United States, 80 540 in Canada, and 121 183 in England/Wales from 1999 to 2015. In the United States, 64% of deaths occurred in male individuals and 52.6% occurred in white individuals (25.1% deaths occurred in black individuals and 17.9% in Latino individuals). All-cause mortality declined for all age groups (infants younger than 1 year [38.5% of deaths], children aged 1-9 years [10.6%], early adolescents aged 10-14 years [5%], late adolescents aged 15-19 years [17.7%], and young adults aged 20-24 years [28.1%]) in the United States, Canada, and England/Wales from 1999 to 2015. However, rates were highest in the United States. Within the United States, annual declines in all-cause mortality rates occurred among all age groups of black, Latino, and white individuals, except for white individuals aged 20 to 24 years, whose rates remained stable. Mortality rates declined across most major causes of death from 1999 to 2002 and 2012 to 2015, with notable declines observed for sudden infant death syndrome, unintentional injury death, and homicides. Among infants, unintentional suffocation and strangulation in bed increased (difference between 2012-2015 and 1999-2002 range, 6.11-29.03 per 100 000). Further, suicide rates among Latino and white individuals aged 10 to 24 years (range, 0.21-2.63 per 100 000) and black individuals aged 10 to 19 years (range, 0.10-0.45 per 100 000) increased, as did unintentional injury deaths in white young adults (0.79 per 100 000). The rise in unintentional injury deaths is attributed to increases in drug poisonings and was also observed in black and Latino young adults.

CONCLUSIONS AND RELEVANCE

Mortality rates in the United States have generally declined for infants and youths from 1999 to 2015 owing to reductions in sudden infant death syndrome, unintentional injury death, and homicides. However, US mortality rates remain higher than Canada and England/Wales, with particularly elevated rates among black and American Indian/Alaskan Native youth. Further, there is a concerning increase in suicide and drug poisoning death rates among US adolescents and young adults.

Premature mortality from all causes and drug poisonings in the USA according to socioeconomic status and rurality: an analysis of death certificate data by county from 2000-15

BACKGROUND

Increasing premature mortality among some groups of Americans has been largely driven by increases in drug poisoning deaths. However, to our knowledge, a formal descriptive study by race and ethnicity, socioeconomic status, rurality, and geography has not been done. In this study, we examined US trends in premature all-cause and drug poisoning mortality between 2000 and 2015 at the county level among white, black, and Latino people.

METHODS

We used US mortality data for the period Jan 1, 2000, to Dec 31, 2015, including underlying cause of death and demographic data, collected from death certificates by the Centers for Disease Control and Prevention National Center for Health Statistics, and ascertained county attributes from the 2011-15 Census American Community Survey. We categorised counties into quintiles on the basis of the percentage of people unemployed, the percentage of people with a bachelor's degree, median income, and rurality. We estimated premature (ie, deaths in those aged 25-64 years) age-standardised mortality for all causes (by race and ethnicity) and drug poisoning, by county, for the periods of 2000-03 and 2012-15. We estimated annual percentage changes in mortality (2000-15) by county-level characteristics.

FINDINGS

Premature mortality declined from 2000-03 to 2012-15 among black and Latino people, but increased among white people in many US counties. Drug poisoning mortality increased in counties throughout the country. Significant increases between 2000 and 2015 occurred across low and high socioeconomic status and urban and rural counties among white people aged 25-64 years (annual percentage change range 4·56% per year [95% CI 3·56-5·57] to 11·51% per year [9·41-13·65]), black people aged 50-64 years (2·27% per year [0·42-4·16] to 9·46% per year [7·02-11·96]), Latino women aged 25-49 years (2·43% per year [1·18-3·71] to 5·01% per year [3·80-6·23]), and Latino men aged 50-64 years (2·42% per year [0·53-4·34] to 5·96% per year [3·86-8·11]). Although drug poisoning mortality increased rapidly in counties with the lowest socioeconomic status and in rural counties, most deaths during 2012-15 occurred in the largest metropolitan counties (121 395 [76%] in metropolitan counties with ≥250 000 people vs 2175 [1%] in the most rural counties), reflecting population size.

INTERPRETATION

Premature mortality has declined among black and Latino people in the USA, and increased among white people, particularly in less affluent and rural counties. Increasing drug poisoning mortality was not limited to poor white people in rural areas. Rapid increases have occurred in communities throughout the USA regardless of race and ethnicity, socioeconomic status, or rurality. Widespread public health interventions are needed to addess this public health emergency.

FUNDING

National Institutes of Health.

Trends in Mortality From Drug Poisonings, Suicide, and Alcohol-Induced Deaths in the United States From 2000 to 2017

IMPORTANCE

Life expectancy has decreased in the US, driven largely by increases in drug poisoning, suicide, and alcohol-induced deaths. Assessing whether patterns of these causes differ is required to inform public health interventions.

OBJECTIVE

To compare patterns and trends in drug poisoning, suicide, and alcohol-induced death rates by geography and demographic characteristics.

DESIGN, SETTING, AND PARTICIPANTS

This serial cross-sectional study used national vital statistics data from the entire US population from January 1, 2000, to December 31, 2017, among US residents aged 20 to 64 years. Data were analyzed from January through August 2019.

EXPOSURES

Age, sex, race/ethnicity, county-level percentage of unemployment, rurality, and geography.

MAIN OUTCOMES AND MEASURES

Deaths were categorized as due to drug poisoning, suicide, or alcohol-induced causes based on underlying cause of death. Age-standardized incidence rates and annual percentage changes (APCs) in rates were estimated. Clusters of high-rate counties were identified with hot spot analysis. Excess deaths during 2001 to 2017 were estimated for each cause as the difference between the number of deaths observed and expected if rates had remained stable starting in 2000.

RESULTS

During 2000 to 2017, 1 446 177 drug poisoning, suicide, and alcohol-induced premature deaths occurred in the US, including 563 765 drug poisoning deaths (age-standardized rate: 17.6 per 100 000 person-years [PYs]), 517 679 suicides (age-standardized rate: 15.8 per 100 000 PYs), and 364 733 alcohol-induced deaths (age-standardized rate: 10.5 per 100 000 PYs), totaling 451 596 more deaths than expected based on 2000 rates. High drug poisoning death rates were clustered in the Northeast through Appalachia, yet rates of suicide and alcohol-induced deaths were highest in the West. Only suicide death rates were highest in rural areas. Drug poisoning death rates were highest among people aged 35 to 49 years (age-standardized rate: 23.7 per 100 000 PYs), whereas suicide and alcohol-induced death rates peaked among people aged 50 to 64 years (suicide age-standardized rate: 19.6 per 100 000 PYs; alcohol-induced age-standardized death rate: 26.8 per 100 000 PYs). Increases occurred over time across racial/ethnic groups, although trajectories and inflection years varied. Drug poisoning (2013-2017 APC, 15.0% [95% CI, 11-8%-18.3%] per year) and alcohol-induced death rates (2012-2017 APC, 4.1% [95% CI, 3.3%-4.9%] per year) have accelerated recently, while increases in suicide death rates have largely increased at a constant trajectory (2000-2017 APC, 1.8% [95% CI, 1.7%-1.9%] per year).

CONCLUSIONS AND RELEVANCE

This cross-sectional study found that demographic characteristics and geographic patterns varied by cause of death, suggesting that increasing death rates from these causes were not concentrated in 1 group or region. Specialized interventions tailored for the underlying drivers of each cause of death are urgently needed.

Coping With Chronic Stress by Unhealthy Behaviors: A Re-Evaluation Among Older Adults by Race/Ethnicity

OBJECTIVE

To assess the role of unhealthy behaviors in the relationship between chronic stress and significant depressive symptoms by race/ethnicity among older adults.

METHOD

Participant data from the 2006 to 2008 Health and Retirement Study were analyzed. Unhealthy behaviors included current smoking, excessive/binge drinking, and obesity. Chronic stress was defined by nine previously used factors. The eight-item Center for Epidemiologic Studies Depression (CES-D) Scale measured depressive symptoms, where ≥4 symptoms defined significant. Multivariable logistic regression assessed the effects of chronic stress and unhealthy behaviors in 2006 on depressive symptoms in 2008.

RESULTS

A higher chronic stress index score predicted depressive symptoms in 2008 among African Americans, Latinos, and Whites (adjusted odds ratio [aOR] = 1.78, 95% confidence interval [CI] = [1.48, 2.15]; aOR = 1.54, 95% CI = [1.15, 2.05]; and aOR = 1.40, 95% CI = [1.26, 1.56], respectively). Unhealthy behaviors moderated this relationship among Latinos (aOR = 1.54, 95% CI = [1.02, 2.33]).

DISCUSSION

Unhealthy behaviors were not effective coping mechanisms for chronic stress in terms of preventing significant depressive symptoms. Instead, they strengthened the relationship between chronic stress and significant depressive symptoms among Latinos.

Health Disparities in Patients with Pulmonary Arterial Hypertension: A Blueprint for Action. An Official American Thoracic Society Statement

BACKGROUND

Health disparities have a major impact in the quality of life and clinical care received by minorities in the United States. Pulmonary arterial hypertension (PAH) is a rare cardiopulmonary disorder that affects children and adults and that, if untreated, results in premature death. The impact of health disparities in the diagnosis, treatment, and clinical outcome of patients with PAH has not been systematically investigated.

OBJECTIVES

The specific goals of this research statement were to conduct a critical review of the literature concerning health disparities in PAH, identify major research gaps and prioritize direction for future research.

METHODS

Literature searches from multiple reference databases were performed using medical subject headings and text words for pulmonary hypertension and health disparities. Members of the committee discussed the evidence and provided recommendations for future research.

RESULTS

Few studies were found discussing the impact of health disparities in PAH. Using recent research statements focused on health disparities, the group identified six major study topics that would help address the contribution of health disparities to PAH. Representative studies in each topic were discussed and specific recommendations were made by the group concerning the most urgent questions to address in future research studies.

CONCLUSIONS

At present, there are few studies that address health disparities in PAH. Given the potential adverse impact of health disparities, we recommend that research efforts be undertaken to address the topics discussed in the document. Awareness of health disparities will likely improve advocacy efforts, public health policy and the quality of care of vulnerable populations with PAH.

Genome-Wide Association Study of Heavy Smoking and Daily/Nondaily Smoking in the Hispanic Community Health Study/Study of Latinos (HCHS/SOL)

Introduction

Genetic variants associated with nicotine dependence have previously been identified, primarily in European-ancestry populations. No genome-wide association studies (GWAS) have been reported for smoking behaviors in Hispanics/Latinos in the United States and Latin America, who are of mixed ancestry with European, African, and American Indigenous components.

Methods

We examined genetic associations with smoking behaviors in the Hispanic Community Health Study/Study of Latinos (HCHS/SOL) (N = 12 741 with smoking data, 5119 ever-smokers), using ~2.3 million genotyped variants imputed to the 1000 Genomes Project phase 3. Mixed logistic regression models accounted for population structure, sampling, relatedness, sex, and age.

Results

The known region of CHRNA5, which encodes the α5 cholinergic nicotinic receptor subunit, was associated with heavy smoking at genome-wide significance (p ≤ 5 × 10-8) in a comparison of 1929 ever-smokers reporting cigarettes per day (CPD) > 10 versus 3156 reporting CPD ≤ 10. The functional variant rs16969968 in CHRNA5 had a p value of 2.20 × 10-7 and odds ratio (OR) of 1.32 for the minor allele (A); its minor allele frequency was 0.22 overall and similar across Hispanic/Latino background groups (Central American = 0.17; South American = 0.19; Mexican = 0.18; Puerto Rican = 0.22; Cuban = 0.29; Dominican = 0.19). CHRNA4 on chromosome 20 attained p < 10-4, supporting prior findings in non-Hispanics. For nondaily smoking, which is prevalent in Hispanic/Latino smokers, compared to daily smoking, loci on chromosomes 2 and 4 achieved genome-wide significance; replication attempts were limited by small Hispanic/Latino sample sizes.

Conclusions

Associations of nicotinic receptor gene variants with smoking, first reported in non-Hispanic European-ancestry populations, generalized to Hispanics/Latinos despite different patterns of smoking behavior.

Implications

We conducted the first large-scale genome-wide association study (GWAS) of smoking behavior in a US Hispanic/Latino cohort, and the first GWAS of daily/nondaily smoking in any population. Results show that the region of the nicotinic receptor subunit gene CHRNA5, which in non-Hispanic European-ancestry smokers has been associated with heavy smoking as well as cessation and treatment efficacy, is also significantly associated with heavy smoking in this Hispanic/Latino cohort. The results are an important addition to understanding the impact of genetic variants in understudied Hispanic/Latino smokers.

How Does Acculturation Influence Smoking Behavior Among Latinos? The Role of Education and National Background

Introduction

As Latinos acculturate, they are assumed to smoke at higher rates. This study investigated the relationship between acculturation level, educational attainment, and cigarette smoking by gender and national background among Latinos.

Methods

Data from the 2009-2012 National Health Interview Survey were analyzed and participants included 1,111 Cubans, 813 Dominicans, 13,281 Mexicans, and 2,197 Puerto Ricans. Multivariable logistic regression was used to model acculturation and educational predictors of current smoking, stratified by gender and national background. Acculturation level was categorized into less acculturated, bicultural, and more acculturated by combining birthplace and language preference. Current cigarette smoking was defined by self-reported use every day or some days among those who ever smoked at least 100 cigarettes.

Results

Most respondents were interviewed in English (62%) and had a high school education or less (60%), but only 39% were US-born. Overall, 17.8% of men and 9.6% of women reported current smoking. By national background, smoking prevalence was highest among Puerto Ricans (16% of women and 23% of men) and lowest among Dominicans (6% of women and 10% of men). More acculturated Mexican women and men had significantly higher odds of current smoking (OR=2.94; 95% CI=2.01, 4.31 and OR=1.88; 95% CI=1.39, 2.55; respectively). Mexican men who were more acculturated and had greater levels of educational attainment had lower odds of smoking (OR=.84; 95% CI=.74, .96).

Conclusions

The relationship between acculturation and health behaviors among Latinos is influenced by education and should be considered by public health and clinician stakeholders when developing or adapting tobacco control strategies.

Trends in Premature Deaths Among Adults in the United States and Latin America

IMPORTANCE

Premature death rates vary in the United States by race/ethnicity. Despite their socioeconomic disadvantages, US Latino populations have lower premature mortality rates than do US white populations, a phenomenon termed the "Latino or Hispanic paradox."

OBJECTIVE

To investigate whether there is a broader Latin American paradox by comparing premature mortality rates in the United States according to race/ethnicity with rates in Latin America and Puerto Rico from 2001 to 2015.

DESIGN, SETTING, AND PARTICIPANTS

This descriptive cross-sectional study used mortality data from the World Health Organization Mortality Database. All deaths occurring in individuals aged 20 to 64 years among US Latino, African American, white, and Puerto Rican and 12 other Latin American populations from January 2001 to December 2015 were selected. The data analysis began in October 2018.

EXPOSURES

Age, sex, race/ethnicity, and country.

MAIN OUTCOMES AND MEASURES

All-cause mortality, cause-specific mortality, age-standardized mortality rates (AMSRs), and average annual percentage change in mortality rates during 2001 to 2015.

RESULTS

During 2001 to 2015, 22 million deaths (8 million women and 14 million men) occurred among individuals aged 20 to 64 years in the selected populations. Among women, US Latina individuals had the lowest premature mortality rates (ASMR for 2015, 144 deaths per 100 000 population) and US African American women had the highest premature mortality rate (ASMR for 2015, 340 deaths per 100 000 population) of the 16 populations studied. Rates among US white women shifted from the sixth lowest in 2001 (ASMR, 231 deaths per 100 000 population) to the 12th lowest in 2015 (ASMR, 235 deaths per 100 000 population). Among men, Peru had the lowest premature mortality rates (ASMR for 2015, 219 deaths per 100 000 population), and Belize had the highest premature mortality rates (ASMR for 2015, 702 deaths per 100 000 population). White men in the United States shifted from the fifth lowest rates in 2001 (ASMR, 396 deaths per 100 000 population) to the eighth lowest rates in 2015 (ASMR, 394 deaths per 100 000 population). Rates for both women and men decreased in all the populations studied from 2001 to 2015 (average annual percentage change range, 0.4% to 3.8% per year) except among US white populations, for which the rate plateaued (average annual percentage change, 0.02% per year [95% CI, -0.3% to 0.2% per year] for women; -0.2% per year [95% CI, -0.4% to 0.0% per year] for men) and among Nicaraguan men, for whom the rates increased (0.6% per year [95% CI, 0.2% to 1.0% per year]). The populations with the lowest mortality rates in 2015 had lower rates from all major causes, but rates were particularly lower for heart disease (21 deaths per 100 000 population) and cancer (50 deaths per 100 000 population).

CONCLUSIONS AND RELEVANCE

Premature mortality rates are lower for US Latino populations and several Latin American countries than for US white populations, suggesting that there may be a broader Latin American paradox. This analysis also highlights the high premature mortality rates among US African American populations, especially women, compared with many Latin American populations.

Experiences of violence and mental health outcomes among Asian American transgender adults in the United States

PURPOSE

We addressed prevalence and factors associated with mental health outcomes (suicidal behavior and psychological distress) among Asian Americans (AA), who identify as transgender, a key group among sexual and gender minorities that is overlooked and understudied.

METHODS

We used data from 2015 United States Transgender Survey during 2019-2020 with our population as census defined AA. Outcomes included suicidal ideation, suicidal thoughts, and serious psychological distress (SPD). Independent variables included any abuse, partner abuse, bathroom-related abuse, and additional covariates. Adjusted odds ratio and 95% confidence interval (aOR; 95% CI) for each outcome are adjusted for age, marital status, citizenship status, education level, employment status, as well as poverty status.

RESULTS

Nearly 67% reported experiencing any abuse, 52% reported abuse from romantic/sexual partner(s), while 29% reported harassment/abuse when trying to use bathrooms. Moreover, 82% reported suicidal thoughts, 40% reported suicidal attempts, and 39% had SPD. Results demonstrated that any abuse/violence had higher odds of suicidal thoughts (adjusted odds ratio [aOR] = 2.67, 95% confidence interval (CI):[1.98-3.58], suicidal attempts (aOR = 2.83, 95% CI:[2.18-3.68]), and SPD (aOR = 1.56, 95% CI:[1.20, 2.04]). Abuse from romantic/sexual partners had higher odds of suicidal thoughts (aOR = 2.47, 95% CI:[1.76-3.47]), suicidal attempts (aOR = 2.17, 95% CI:[1.68-2.80]), and SPD (aOR = 2.72, 95% CI:[2.03-3.63]). Experience of harassment/abuse during bathroom use had increased odds of suicidal attempts (aOR = 1.81, 95% CI:[1.41-2.31]).

CONCLUSION

Exposure to violence is common among AA transgender individuals and related to negative mental health outcomes. Initiatives to reduce exposure to abuse and providing resources for trauma-informed care are imperative to improve health outcomes.

Adolescent Smoking Susceptibility: Gender-Stratified Racial and Ethnic Differences, 1999-2018

INTRODUCTION

Susceptibility, or openness to smoking, is a predictor of future smoking. This study examines within-gender racial/ethnic differences in smoking susceptibility over historical time (1999-2018) and developmental age (11-18 years).

METHODS

Data were obtained from 205,056 adolescent never smokers in 14 waves of the National Youth Tobacco Survey. Weighted time-varying effect models were used to estimate nonlinear trends in smoking susceptibility among minority (versus white) adolescents. Analyses were conducted in 2019.

RESULTS

Compared with whites, Latino/a adolescents were consistently more susceptible to smoking, whereas black and Asian adolescents fluctuated between being less and equally susceptible over time. American Indian, Alaska Native, Native Hawaiian, and Pacific Islander adolescents were more susceptible from 2014 to 2017, with differences being larger for girls. Susceptibility peaked at age 14 years. Compared with whites, Latino/a adolescents were more susceptible throughout adolescence. Black adolescents were more susceptible in early adolescence, whereas Asian adolescents were less or equally susceptible to smoking in early to mid-adolescence. American Indian, Alaska Native, Native Hawaiian, and Pacific Islander girls were more susceptible in early and mid-adolescence, but boys were more susceptible in early adolescence only. American Indian, Alaska Native, Native Hawaiian, and Pacific Islander girls were less susceptible than white girls aged 18 years.

CONCLUSIONS

Twenty-year racial/ethnic differences in smoking susceptibility were evident, particularly among girls, but were mostly equivalent between genders over developmental age. Targeting susceptible adolescents with gender-, race/ethnic-, and age-tailored prevention efforts may prevent or delay adolescents' transition to tobacco use and reduce tobacco-related disparities.

Smoking Susceptibility and Tobacco Media Engagement Among Youth Never Smokers

BACKGROUND

Susceptibility to future smoking among youth never smokers has not changed in the past 20 years, although experimental cigarette smoking has decreased. We assessed how smoking susceptibility and tobacco industry-related marketing influenced smoking initiation.

METHODS

Four waves (2013-2018) of the Population Assessment of Tobacco and Health Study data were analyzed among youth aged 12 to 17 years at wave 1 who completed wave 4. Susceptibility was assessed by 4 items (openness to curiosity, try soon, try in the next year, and if your best friend offered) and categorized into 4 levels (0 = definitely no to all; 1 = yes to 1; 2 = yes to 2; and 3 + 4 = yes to 3 or 4 susceptibility items). Multivariable logistic regression evaluated how susceptibility levels, electronic cigarette use, and tobacco-related media activity predicted future experimental (≥1 puff), current (past 30 days), or established (≥100 cigarettes) smoking.

RESULTS

Among 8899 never smokers at wave 1, 16.4% became experimental smokers, 7.6% current smokers, and 1.8% established smokers at wave 4. Black and Latino/a youth were less likely to experiment. Youth who endorsed 3 or 4 susceptibility items at wave 1 were more likely to be experimental (adjusted odds ratio [aOR] = 6.0; confidence interval [CI] = 4.8-7.4), current (aOR = 4.2; CI = 3.2-5.4), or established (aOR = 4.4; CI = 2.4-7.9) smokers at wave 4. Exposure to tobacco marketing, using tobacco-related apps, seeing social media content posted about tobacco, and ever use of electronic cigarettes also predicted experimental smoking.

CONCLUSIONS

Smoking susceptibility and exposure to tobacco industry-related marketing were predictive of cigarette smoking. Clinicians should consider screening adolescents for smoking susceptibility and tobacco-related media exposure.

Acculturation-related predictors of very light smoking among Latinos in California and nationwide

The prevalence of light smoking has increased among Latinos. The purpose of this study was to identify demographic and acculturation-related factors associated with very light smoking, defined as smoking 1-5 cigarettes per day (CPD), among Latinos in California and nationwide. Latino smokers in the 2007-2008 National Health and Nutrition Examination Survey (NHANES) or the 2009 California Health Interview Survey (CHIS) were analyzed. Logistic regression assessed factors associated with very light smoking. Among NHANES smokers, those born in Mexico or who lived fewer years in the US were more likely to be very light smokers than 6+ CPD smokers. Among CHIS smokers, those born in Mexico, in another Spanish speaking country, or who spent smaller percentages of their life in the US were more likely to be very light smokers. Findings from this study can be used to design tobacco control media campaigns that include very light smokers.

The burden of stomach cancer mortality by county, race, and ethnicity in the USA, 2000-2019: a systematic analysis of health disparities

Background

There are persistent disparities in stomach cancer mortality among racial-ethnic groups in the USA, but the extent to which these patterns vary geographically is not well understood. This analysis estimated age-standardised mortality for five racial-ethnic groups, in 3110 USA counties over 20 years, to describe spatial-temporal variations in stomach cancer mortality and disparities between racial-ethnic groups.

Methods

Redistribution methods for insufficient cause of death codes and validated small area estimation methods were applied to death registration data from the US National Vital Statistics System and population data from the US National Center for Health Statistics to estimate annual stomach cancer mortality rates. Estimates were stratified by county and racial-ethnic group (non-Latino and non-Hispanic [NL] American Indian or Alaska Native [AIAN], NL Asian or Pacific Islander [Asian], NL Black [Black], Latino or Hispanic [Latino], and NL White [White]) from 2000 to 2019. Estimates were corrected for misreporting of racial-ethnic group on death certificates using published misclassification ratios. We masked (ie, did not display) estimates for county and racial-ethnic group combinations with a mean annual population of less than 1000; thus, we report estimates for 3079 (of 3110) counties for the total population, and 474, 667, 1488, 1478, and 3051 counties for the AIAN, Asian, Black, Latino, and White populations, respectively.

Findings

Between 2000 and 2019, national age-standardised stomach cancer mortality was lowest among the White population in every year. Nationally, stomach cancer mortality declined for all racial-ethnic groups across this time period, with the most rapid declines occurring among the Asian (percent decline 48.3% [45.1-51.1]) and Black populations (42.6% [40.2-44.6]). Mortality among the other racial-ethnic groups declined more moderately, decreasing by 36.7% (35.3-38.1), 35.1% (32.2-37.7), and 31.6% (23.9-38.0) among the White, Latino, and AIAN populations, respectively. Similar patterns were observed at the county level, although with wide geographic variation. In 2019, a majority of counties had higher mortality rates among minoritised racial-ethnic populations compared to the White population: 81.1% (377 of 465 counties with unmasked estimates for both racial-ethnic groups) among the AIAN population, 88.2% (1295 of 1469) among the Latino population, 99.4% (663 of 667) among the Asian population, and 99.9% (1484 of 1486) among the Black population. However, the size of these disparities ranged widely across counties, with the largest range from 0.3 to 17.1 among the AIAN population.

Interpretation

Stomach cancer mortality has decreased substantially across populations and geographies in the USA. However, disparities in stomach cancer mortality among racial-ethnic groups are widespread and have persisted over the last two decades. Local-level data are crucial to understanding the scope of this unequal burden among minoritised groups in the USA.

Funding

National Institute on Minority Health and Health Disparities; National Heart, Lung, and Blood Institute; National Cancer Institute; National Institute on Aging; National Institute of Arthritis and Musculoskeletal and Skin Diseases; Office of Disease Prevention; and Office of Behavioral and Social Sciences Research, National Institutes of Health (contract #75N94019C00016).

Changes in Smoking Intensity Over Time by Birth Cohort and by Latino National Background, 1997-2014

INTRODUCTION

The purpose of the study was to describe changes in smoking intensity among US Latinos and non-Latinos from 1997 to 2014.

METHODS

National Health Interview Survey data between 1997 and 2014 were used to determine the number of cigarettes smoked per day (CPD) among Latino and non-Latino adults who had smoked at least 100 cigarettes in their lifetime and were currently smoking every day or some days (ie, current smokers).

RESULTS

CPD declined steadily throughout the observation period and were consistently lower for Latino than for non-Latino smokers. However, decreases were not equal across birth cohorts, genders, or among Latino national background groups. CPD declined most among Mexican men and least among younger generations, Cuban women, and acculturated Latina women. Additionally, declines in smoking intensity seemed to slow over time among low CPD consumers.

CONCLUSIONS

Although smoking intensity has decreased substantially since the late 1990s, CPD data suggest that declines are slowing among younger generations and certain Latina women. Effective tobacco control strategies should be developed to discourage even very light and nondaily smoking.

IMPLICATIONS

Few studies have been conducted on how smoking intensity has changed since the late 1990s. Between 2004 and 2011, when the decline in smoking prevalence slowed, it is unknown how smoking intensity (ie, CPD) changed by age. Additionally, no research has assessed differences and changes in smoking intensity over time among Latinos. From this study we learned that smoking intensity declined significantly since the late 1990s, but this decline slowed among younger generations of smokers and certain Latina women. Findings suggest that future patterns of smoking intensity may only marginally decline in the near future.

Agricultural work exposures and pulmonary function among hired farm workers in California (the MICASA study)

Despite California's dependence on hired farm labor, scarce research has been conducted on the respiratory health of hired farm workers. Agricultural exposures to inorganic and organic dusts can adversely affect an individual's respiratory health and differ by farm type and job task. The purpose of the present analysis was to examine associations between agricultural work exposures and pulmonary function among 450 California farm workers. Data were collected as part of the Mexican Immigration to California: Agricultural Safety and Acculturation (MICASA) study, a prospective cohort study examining occupational risk factors and health of hired farm worker families in Mendota, California. Time-weighted self-reported average (TWSRA) dust scores were calculated from assessments of past-12-month agricultural work history. Other dust exposure indicator variables included months worked in agriculture in the past 12 months and years worked in agriculture. Multiple linear regression modeled FEV1 (forced expiratory volume in 1 second), FEF(25-75%) (forced midexpiratory flow rate), FVC (forced vital capacity), FEV6, FEV1/FVC, and FEV1/FEV6 separately. Seventy-six percent of participants had worked in agriculture in the past year. In models conducted for crops and tasks separately, high TWSRA dust score was associated with better FEV6. Crop and task models showed associations between greater months worked in agriculture in the past year and better FEV1, FEF(25-75%), and FEV6. Both models also found greater years worked in agriculture to be associated with worse FEV1/FEV6. Results were generally in the opposite direction as expected given past research but not uncommon. Future research should investigate relationships between pulmonary function and agricultural dust exposure over a lifetime and changes in pulmonary function over time.

Allostatic load, unhealthy behaviors, and depressive symptoms in the Hispanic Community Health Study/Study of Latinos

BACKGROUND

The Environmental Affordances Model (EAM) proposes that the effects of chronic stress on depression are moderated by unhealthy behaviors and race/ethnicity. The unique social structures and contexts of Hispanics/Latinos in the U.S. may influence such relationships. This study evaluated whether unhealthy behaviors weakened the relationship between allostatic load, a measure of chronic stress, and future elevated depressive symptoms among Hispanic Community Health Study/Study of Latinos participants.

METHODS

Longitudinal data (2008-2011 and 2014-2017) from 11,623 participants were analyzed. The exposure was allostatic load, an index of twelve established biomarkers categorized using clinically relevant cut points, at Visit 1. Elevated depressive symptoms were operationalized as a score of ≥10 (out of 30) on the CES-D 10 at Visit 2. An index of unhealthy behaviors, with one point each for cigarette smoking, excessive/binge drinking, sedentary behavior, and poor diet quality at Visit 1, was examined as an effect modifier. Multivariable logistic regression, in the overall sample and among Mexicans specifically and adjusted for demographic characteristics and elevated depressive symptoms at Visit 1, was used to model allostatic load, unhealthy behavior index (range: 0-4), and their interaction in relation to elevated depressive symptoms at Visit 2.

RESULTS

Overall, greater allostatic load was associated with higher odds of elevated depressive symptoms after at least 6 years (aOR = 1.06, 95% CI = 1.01, 1.10). Overall, individuals with greater allostatic load and an unhealthy behavior index = 1, compared to those with an unhealthy behavior index = 0, had lower odds of elevated depressive symptoms at follow-up (aβ = -0.065, 95% CI = -0.12, -0.007).

CONCLUSIONS

The relationship between chronic stress and depression was partially moderated among Hispanics/Latinos who engaged in unhealthy behavior, which may have reduced their risk of elevated depressive symptoms given more chronic stress.

Allostatic Load, Unhealthy Behaviors, and Depressive Symptoms by Birthplace Among Older Adults in the Sacramento Area Latino Study on Aging (SALSA)

Objective: To assess whether unhealthy behaviors moderated the relationship between allostatic load (AL) and future significant depressive symptoms (SDSs) among 1,789 older Latinos. Method: Longitudinal data included baseline AL, three unhealthy behaviors (UBs), and 2-year follow-up SDS. Multivariable logistic regression analyses, stratified by birthplace (U.S. vs. foreign born), modeled the effects of AL, UB count (range = 0-3), and their interaction on follow-up SDS. Results: Compared with U.S.-born, foreign-born participants engaged in fewer UBs (0.52 vs. 0.60 behaviors, p = .01) and had higher baseline SDS (31% vs. 20%, p < .001). Among foreign-born participants, the effect of AL on future SDS (adjusted odds ratios [aORs]; 95% confidence interval [CI]) significantly increased across UB counts of 0 to 3: 1.06 [0.83, 1.35], 1.46 [1.14, 1.87], 2.00 [1.18, 3.41], and 2.75 [1.18, 6.44], respectively. Discussion: Among foreign-born Latinos, these results were most pronounced for women and adults above age 80, which may represent higher risk groups requiring more intensive screening for depression.

Prevention Science for Reducing Health Disparities

This article is a commentary on the publication titled, Strategic Directions in Prevention Intervention Research to Advance Health Equity, by R. C. Boyd et al.

Perceived neighborhood factors, health behaviors, and related outcomes in the Hispanic Community Health Study/Study of Latinos

Hispanic/Latino populations may experience significant neighborhood disadvantage, but limited research has explored whether these factors affect their health behaviors. Associations between perceived neighborhood factors at Visit 1 and health behaviors and related outcomes at Visit 2 in the Hispanic Community Health Study/Study of Latinos were evaluated. Multivariable logistic regression assessed cross-sectional and longitudinal relationships between perceived neighborhood social cohesion (NSC, 5 items), and neighborhood problems (NP, 7 items), with cancer screening, current smoking, excessive/binge drinking, hypertension, obesity, physical activity, and poor diet by gender and birthplace. NSC and NP scores were converted into quartiles. Mean age of participants was 42.5 years and 62.1% were women. Perceived NP, but not perceived NSC, differed by gender (p < 0.001). In unstratified models, no significant associations were observed between perceived NSC and any health behavior, whereas greater perceived NP was associated with less adherence to colon cancer screening (moderate level: aOR = 0.68, 95% CI = 0.51, 090) and more physical activity (very high level: aOR = 1.34, 95% CI = 1.06, 1.69) compared to low perceived NP. Women with moderate perceived NP, versus low NP, had a lower odds of colon cancer screening at Visit 1 (aOR = 0.62, 95% CI = 0.43, 0.91) and higher odds of mammogram adherence at Visit 2 (aOR = 2.86, 95% CI = 1.44, 5.68). Men with high perceived NP had a higher odds of excessive or binge drinking at Visit 2 (aOR = 1.99, 95% CI = 1.19, 3.31). We conclude that perceived NP were significantly related to health behaviors among HCHS/SOL individuals. Perceptions of neighborhood environment may be considered modifiable factors of structural neighborhood environment interventions.

Uniting the Vision for Health Equity through Partnerships: The 2nd Annual Dr. Elijah Saunders & Dr. Levi Watkins Memorial Lecture

Minority health research focuses on outcomes by race and ethnicity categories used in the United States census. Overall mortality has decreased significantly for African Americans, Latinos, and Asians over the past 20 years even though it has stopped improving for poor Whites and continues to increase for American Indians/Alaska Natives. Prevention and treatment of cardiovascular disease partly account for this trend, but there is room for improvement. Health disparities research also includes persons of less privileged socioeconomic status, underserved rural residents, and sexual and gender minorities of any race and ethnicity when the outcomes are worse than a reference population. Understanding mechanisms that lead to health disparities from behavioral, biological, environmental and health care perspectives will lead to interventions that reduce these disparities and promote health equity. Experiences with racism and discrimination generate a chronic stress response with measurable effects on biological processes and study is needed to evaluate long-term effects on health outcomes. A clinical example of effective approaches to reducing disparities is management of hypertension to promote stroke reduction that requires health system changes, patient-clinician partnerships and engagement of community organizations. Clinicians in health care settings have the potential to promote health equity by implementing standardized measures of social determinants, leveraging the power of health information technology, maximizing cultural competence and socially precise care and engaging communities to reduce health disparities. Strategic partnerships between health care institutions and community-based organizations need to parallel patient-clinician partnerships and are essential to promote health equity and reduce disparities.