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Open Access Publications from the University of California

This series is automatically populated with publications deposited by UC Merced Department of Sociology researchers in accordance with the University of California’s open access policies. For more information see Open Access Policy Deposits and the UC Publication Management System.

Cover page of Structural Racism as an Environmental Justice Issue: A Multilevel Analysis of the State Racism Index and Environmental Health Risk from Air Toxics.

Structural Racism as an Environmental Justice Issue: A Multilevel Analysis of the State Racism Index and Environmental Health Risk from Air Toxics.

(2023)

Communities of color and poor neighborhoods are disproportionately exposed to more air pollution-a pattern known as environmental injustices. Environmental injustices increase susceptibility to negative health outcomes among residents in affected communities. The structural mechanisms distributing environmental injustices in the USA are understudied. Bridging the literatures on the social determinants of health and environmental justice highlights the importance of the environmental conditions for health inequalities and sheds light on the institutional mechanisms driving environmental health inequalities. Employing a critical quantitative methods approach, we use data from an innovative state racism index to argue that systematic racialized inequalities in areas from housing to employment increase outdoor airborne environmental health risks in neighborhoods. Results of a multilevel analysis in over 65,000 census tracts demonstrate that tracts in states with higher levels of state-level Black-white gaps report greater environmental health risk exposure to outdoor air pollution. The state racism index explains four-to-ten percent of county- and state-level variation in carcinogenic risk and noncarcinogenic respiratory system risks from outdoor air toxics. The findings suggest that the disproportional exposure across communities is tied to systematic inequalities in environmental regulation and other structural elements such as housing and incarceration. Structural racism is an environmental justice issue.

"If People Were Told About the Cancer, They'd Want to Get Vaccinated": Knowledge, Attitudes, and Beliefs About HPV Vaccination Among Mid-Adult Men.

(2023)

In 2018, nine-valent human papillomavirus (HPV) vaccine eligibility expanded to include adults aged 27 to 45. This study aimed to identify knowledge, attitudes, and beliefs (KABs) about HPV and HPV vaccination among newly eligible mid-adult men, for whom uptake in adolescence and younger adulthood remains suboptimal. We conducted six virtual focus groups (N = 34 participants) with unvaccinated men aged 27 to 45 living in Southern California's Inland Empire. Data were systematically analyzed to identify emergent themes using the rigorous and accelerated data reduction technique. The sample of men was diverse (79% Hispanic, non-Hispanic Black, Asian, or mixed race/ethnicity; 26% gay or bisexual) and captured participants from across the socioeconomic spectrum. Eighty-eight percent of participants had never received a provider recommendation to be vaccinated against HPV. Many had unanswered questions about HPV and HPV vaccination, could not recall any HPV-related cancers that affect men, and were unaware of their current eligibility for vaccination. Embarrassment and stigma surrounding vaccination against a sexually transmitted infection, concerns about vaccine side effects and safety, and preferences for preventing HPV via "safer sex" and monogamy were salient barriers to vaccination. Nevertheless, many men were eager to learn more about HPV vaccination and engage with health care providers around that topic. Interventions aimed at improving men's knowledge, changing social norms, and supporting health providers to identify HPV vaccine-eligible patients may be especially fruitful for facilitating shared clinical decision-making between mid-adult men and their health care providers.

Cover page of Trends and Disparities in Suicidality Among Heterosexual and Sexual Minority/Two-Spirit Indigenous Adolescents in Canada.

Trends and Disparities in Suicidality Among Heterosexual and Sexual Minority/Two-Spirit Indigenous Adolescents in Canada.

(2022)

Purpose

To explore trends in sexual orientation group differences in suicidality among Indigenous adolescents and evaluate whether gaps between heterosexual and sexual minority/Two-Spirit adolescents have changed over time.

Methods

Leveraging pooled school-based population data from five waves of the British Columbia Adolescent Health Survey (1998-2018), we used age-adjusted logistic regression models, separately for boys and girls, to examine 20-year trends and disparities in past year suicidal ideation and suicide attempts among heterosexual and sexual minority/Two-Spirit Indigenous adolescents (N = 13,788).

Results

Suicidal ideation increased among all sexual orientation groups in 2018 compared to previous survey waves. Suicide attempts spiked for heterosexual girls in 2003, remained stable for heterosexual boys, and decreased for sexual minority/Two-Spirit boys and girls over time. Compared to their heterosexual peers, sexual minority/Two-Spirit boys had higher odds of suicidal ideation since 1998, whereas sexual minority/Two-Spirit girls had higher odds of suicidal ideation since 2003. Sexual minority/Two-Spirit (vs. heterosexual) boys were approximately 4-7 times more likely to attempt suicide since 2008, whereas sexual-minority/Two-Spirit (vs. heterosexual) girls were approximately 3-4 times more likely to attempt suicide since 2003. These gaps in suicidality were persistent across time.

Discussion

Sexual minority/Two-Spirit Indigenous adolescents are at an elevated risk for suicidality compared to their heterosexual Indigenous peers. While trends of suicidal ideation worsened for all Indigenous adolescents, suicide attempts either lessened or remained stable over time. Greater efforts are needed to help reduce suicidality among Indigenous adolescents in Canada, especially among sexual minority/Two-Spirit young people.

Cover page of Scarier than the flu shot? : The social determinants of shingles and influenza vaccinations among U.S. older adults.

Scarier than the flu shot? : The social determinants of shingles and influenza vaccinations among U.S. older adults.

(2022)

Background

Although more than half of older adults receive the annual influenza vaccine (flu shot), only about one-third have ever been vaccinated for shingles. With this in mind, our study examines how the associations between sociodemographic characteristics, health behaviors, and vaccine uptake differ between these two viruses. In doing so, it also investigates whether the social predictors of shingles vaccination changed after the rollout of a new vaccine in 2017.

Methods

Data come from the 2017 and 2020 waves of the Behavioral Risk Factor Surveillance System survey, using a subset of older adults aged 60-plus (N = 389,165). We use logistic regression models to test for associations between individual-level characteristics and vaccine uptake.

Results

One, when compared to Whites, Black respondents had approximately 30 % lower odds of having received the annual influenza vaccine (Odds Ratios  [OR] = 0.72 [95 % CI 0.66-0.78] in 2017, and 0.66 [0.60-0.72] in 2020). For the shingles vaccine, these racial differences were starker (OR = 0.53 [0.48-0.59] in 2017, and OR = 0.55 [0.49-0.60] in 2020). Two, self-rated health was negatively associated with having received the influenza vaccine, but showed little relationship with shingles vaccination. Three, men were less likely than women to receive both vaccines in 2020 (OR = 0.88 [0.83-0.94] for influenza, and OR = 0.80 [0.75-0.85] for shingles). Four, older adults who abstained from alcohol were, generally, less likely to receive either vaccine, when compared to both moderate and heavy drinkers. Finally, we found that the release of a new shingles vaccine in 2017 (Shingrix) had little effect on vaccination prevalence or its social determinants.

Conclusion

The importance of social groups, health, and health behaviors on vaccination status may be disease-dependent. This study also provides possible guidance to health care providers and health organizations looking to increase vaccine uptake among older adults, which may have more urgency since the arrival of COVID-19.

Attitudes Toward Payment for Research Participation: Results from a U.S. Survey of People Living with HIV.

(2022)

Little is known about how payment affects individuals' decisions to participate in HIV research. Using data from a U.S. survey of people living with HIV (N = 292), we examined potential research participants' attitudes toward payment, perceived study risk based on payment amount, and preferred payment forms, and how these factors vary by sociodemographic characteristics. Most respondents agreed people should be paid for HIV research participation (96%) and said payment would shape their research participation decisions (80%). Men, less formally educated individuals, and members of some minoritized racial-ethnic groups were less likely to be willing to participate in research without payment. Higher payment was associated with higher perceived study risks, while preferences for form of payment varied by age, gender, education, race-ethnicity, and census region of residence. Findings suggest payment may influence prospective research participants' risk-benefit calculus and participation, and that a one-size-fits-all approach to payment could differentially influence participation among distinct sociodemographic groups.

Cover page of Intersectional inequalities in industrial air toxics exposure in the United States.

Intersectional inequalities in industrial air toxics exposure in the United States.

(2022)

Environmental justice and health research demonstrate unequal exposure to environmental hazards at the neighborhood-level. We use an innovative method-eco-intersectional multilevel (EIM) modeling-to assess intersectional inequalities in industrial air toxics exposure across US census tracts in 2014. Results reveal stark inequalities in exposure across analytic strata, with a 45-fold difference in average exposure between most and least exposed. Low SES, multiply marginalized (high % Black, high % female-headed households) urban communities experienced highest risk. These inequalities were not described by additive effects alone, necessitating the use of interaction terms. We advance a critical intersectional approach to evaluating environmental injustices.

"I Thought It Was Just For Teenagers": Knowledge, Attitudes, and Beliefs about HPV Vaccination Among Women Aged 27 to 45.

(2022)

Purpose

We aimed to identify human papillomavirus (HPV) and HPV vaccine-related knowledge, attitudes, and beliefs among women aged 27-45 years, who became eligible for HPV vaccination in 2018.

Methods

Eight virtual focus groups were conducted with 52 unvaccinated cisgender women aged 27-45 years living in Southern California's Inland Empire. Themes related to women's knowledge, attitudes, and beliefs were systematically identified using the rigorous and accelerated data reduction technique.

Results

The sample was diverse: 62% of participants were Hispanic, Black, or Asian; 17% identified as lesbian or bisexual; and annual household incomes ranged from $0 to $260,000 (median, $60,500). Key qualitative themes centered on 1) questions about HPV and HPV vaccination, 2) knowledge and beliefs about HPV and HPV vaccination, 3) concerns about vaccine side effects and safety, 4) low perceived benefits of vaccination, and 5) social factors influencing vaccine acceptance. Few participants were aware adults aged 27-45 years are eligible for HPV vaccination or that vaccination can still be beneficial after sexual debut. Many believed HPV vaccination caused serious side effects among adolescents and questioned whether safety had been adequately studied for newly eligible adults. Although many participants associated HPV vaccination with social stigma, some emphasized that vaccination was a way to exercise control over their health and prevent illness, given they could not always control the actions of their sexual contacts.

Conclusions

Findings provide insight into knowledge, attitudes, and beliefs about HPV and HPV vaccination among women aged 27-45 years, which may be useful for informing interventions to promote shared clinical decision-making between patients and health providers.