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Prevention Research

Associations Between Multiple Forms of Discrimination and Tobacco Use Among People Living With HIV: The Mediating Role of Avoidance Coping

Crockett, Kaylee B. PhD; Rice, Whitney S. DrPH; Turan, Bulent PhD

Author Information
JAIDS Journal of Acquired Immune Deficiency Syndromes: May 1, 2018 - Volume 78 - Issue 1 - p 9-15
doi: 10.1097/QAI.0000000000001636
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Abstract

INTRODUCTION

Prevalence of tobacco use among people living with HIV (PLWH) is double that of the general population, with an estimated 42% of PLWH reporting current tobacco use versus 20% of US adults.1 Recent research also suggests that polytobacco use (using multiple tobacco products concurrently) is elevated in PLWH, particularly among PLWH who already smoke cigarettes.2,3 Although tools for primary and secondary prevention of HIV (ie, pre-exposure prophylaxis and treatment as prevention) gain increasing traction in public health efforts, our attention must also focus on preventing morbidity and mortality and improving the quality of life among PLWH. Tobacco use puts PLWH at increased risk of opportunistic infections, chronic obstructive pulmonary diseases, community-acquired pneumonia, periodontal diseases, cardiovascular diseases, and lung cancer.4,5 Other correlates of tobacco use experienced disproportionately by PLWH include greater HIV-related symptoms, greater use of other substances, lower social support, and lower health-related quality of life.6,7 Because of factors that create health disparities in both HIV and tobacco use (eg, lower socioeconomic status, lower education attainment, access to health care), PLWH are both at higher risk of tobacco uptake and face unique barriers to accessing tobacco cessation resources.8 Consequently, it is important to uncover the dynamics leading to tobacco use among PLWH to enhance accessible prevention and cessation programs.

Many PLWH face the stress of living with a stigmatized health condition. Stigma—the social devaluation and rejection of people with a certain attribute—is a chronic stressor that interferes with health and well-being.9,10 Stigma can be enacted or experienced as discrimination, and those experiences can have particularly negative consequences on health.10,11 Many PLWH also face discrimination related to other characteristics including their racial and ethnic identity or sexual orientation.11,12 Literature on intersectional stigma and discrimination—the degree to which stigmas and forms of discrimination interact with each other within individuals who are stigmatized—suggests that multiple stigmas and discrimination have negative implications on health.11,13,14 It is possible that these overlapping forms of discrimination explain disparities in tobacco use. Numerous studies have documented links between experiences of discrimination among people of color and higher tobacco use prevalence.15–17 Similarly, higher rates of smoking are observed among sexual minority individuals facing structural stigma and discrimination.18–20 Intersectional discrimination likely contributes to tobacco use disparities observed in PLWH and warrants further investigation. However, little empirical data have specifically linked experiences of HIV-related discrimination to smoking.

Individuals who experience discrimination in their communities make efforts to cope with those experiences. Coping includes any effort to deal with stressors that overwhelm one's perceived resources.21 In the HIV literature, avoidance coping responses are consistently associated with poorer outcomes including negative effect, maladaptive health behaviors, and poorer physical health.22 Avoidance coping (also termed “passive” or “disengagement coping”) typically refers to situation-specific coping responses that do not address the cause of stress (eg, behavioral disengagement and social isolation).22,23 The uncontrollable nature of discrimination may make avoidance coping strategies a frequently used coping tool. Avoidance coping can include strategies that result in negative health behaviors like smoking,18,23 especially when other coping strategies are perceived to be out of reach or ineffective.24 In a qualitative investigation, PLWH identified smoking as a coping tool to handle stress, and they may underestimate the negative health effects of tobacco use, given immediate perceived benefits.25,26 Thus, the interrelationships between discrimination, coping, and smoking are dynamic and complex.

The literature on discrimination and HIV-related health has largely focused on HIV-specific outcomes such as medication adherence and viral suppression. This investigation is novel in its examination of the relationship between experienced discrimination and tobacco use for PLWH. Furthermore, this study examines the impact of multiple forms of discrimination (HIV, race, and sexual orientation) in relation to tobacco use behavior in a clinic-based sample of PLWH in the southeastern United States. The US Deep South region leads the nation in HIV diagnoses and mortality.27,28 The co-occurring epidemic of HIV stigma, in addition to other stigmas and forms of discrimination that marginalize people at risk of HIV, may in part explain these HIV disparities.27,29,30 Concurrently, the prevalence of tobacco use is higher in the south, with approximately 15 of 100 adults reporting current tobacco use.31 That estimate increases to approximately 22 of 100 adults in the state of Alabama.31 Finally, this study explores avoidance coping as a potential mediating mechanism in the relationship between discrimination and tobacco use. Given that discrimination has been associated with negative health outcomes, we anticipate that more frequent experiences of discrimination will be associated with greater likelihood of tobacco use and that avoidance coping will explain the association between discrimination and tobacco use.

METHODS

Participants and Procedure

Participants included 202 patients recruited from an outpatient HIV care clinic in Birmingham, Alabama, between March 2013 and January 2015. Participants were recruited for a larger study on daily experiences of living with HIV, and they were included if they were currently on an antiretroviral treatment (ART) regimen and denied current substance use (not including tobacco) at the time of recruitment.32 At scheduled study-related visits, participants provided informed consent and completed measures through computer-based survey. Data on participants' current tobacco use were abstracted from clinic records dated closest to their survey completion date. The study was approved by the Institutional Review Board at the authors' institution.

Measures

Demographics and Health Information

Participants self-reported their age, sex, race, sexual orientation, and level of education. Demographic information was crosschecked with chart data. Participants' most recent viral load and CD4 cell count were abstracted from their medical records. For the purpose of this study, viral load was dichotomized as undetectable (<200 copies/mL) and detectable (≥200 copies/mL).

Experiences of Discrimination

Experiences of discrimination were assessed using the Everyday Discrimination Scale.33 Participants were asked each of the 9 items on the scale (eg, “You are treated with less respect than other people are”) and responded how often each item happened related to their HIV status, their race, and their sexual orientation. Participants responded to each item on a scale from 1: “Never” to 6: “Almost every day.” Composite scores were calculated by taking the mean of items for each form of discrimination. Internal consistency was very good across all forms of discrimination (HIV: α = 0.94; race: α = 0.90; sexual orientation: α = 0.93).

Avoidance Coping

The avoidance subscale of the Ways of Coping List34 was used. This subscale includes 10 items (eg, “I try to forget the whole thing”) that participants responded to on a scale from 1: “I don't do this at all.” to 5: “I do this a lot.” Participants were asked to rate each coping statement in response to thinking about the stress of having HIV. Composite scores were calculated by taking the mean of item responses. Reliability across items was acceptable in the present sample (α = 0.75).

Tobacco Use

The history of and current tobacco use were abstracted from participants' medical records based on clinic-based paperwork they completed at their medical visit closest to their survey date. Current tobacco use was dichotomized for data analyses (0 = nonuser and 1 = user).

Data Analyses

Descriptive analyses were used to assess sample demographic and health characteristics. These characteristics were compared between groups based on current tobacco use documented in participants' medical records. χ2 difference tests were used to examine differences in categorical variables and one-way analysis of variances were used to test differences in continuous variables. Bivariate analyses were followed to assess relationships between study variables. Next, regression analyses were used to assess the relationships between discrimination, coping, and tobacco use with Hayes regression-based process macro for SPSS.35 Three mediation models were conducted (single mediator models with covariates included in the models). Each of the models assessed each of the 3 forms of discrimination (HIV, race, and sexual orientation) as the predictor, whereas controlling for the other 2 forms of discrimination. Relevant demographic covariates were also included in each model: age, sex, race, sexual orientation, and education. Current tobacco use was entered as a dichotomous outcome. Unstandardized beta coefficients are reported to promote interpretation of findings based on the metrics used in the study. In all statistical models, a cutoff P-value of 0.05, and confidence intervals of 95% were used to assess significant results.

RESULTS

Sample Description

Demographic and clinical characteristics of the entire sample (N = 202) and by current tobacco use (n = 55 users and n = 147 nonusers) are shown in Table 1. Participants ranged in age from 24 to 71 years (M: 44.7, SD: 11.1). Most participants identified as male (63%), and 65% were black or African American. A total of 52% were identified as gay, lesbian, or bisexual. Only 6% reported less than a high school degree, most (40%) reported completing some college, and 9% reported completing an advanced degree. Participants had been on ART for an average of 8 years (SD: 5), mean CD4 cell counts were in a healthy range, and most of them (93%) had suppressed viral loads. The only demographic variable that differed significantly between current tobacco users versus nonusers was education attainment.

TABLE 1.
TABLE 1.:
Description of Demographic and Health Information for All Participants Recruited From HIV Care Clinic in Birmingham, AL, and Differences Between Current Tobacco Users and Nonusers

Discrimination was endorsed with relatively low frequency, occurring fewer than 1 time per year on average for HIV-related discrimination (M: 1.5, SD: 0.7), race discrimination (M: 1.8, SD: 1.0), and sexual orientation discrimination (M: 1.5, SD: 0.9). In terms of coping with the stress of living with HIV, participants tended to endorse the use of avoidance strategies “a little” (M: 2.1, SD: 0.7) on average. Tobacco users reported significantly greater avoidance coping compared with nonusers. In bivariate analyses (Table 2), all 3 forms of stigma were positively associated with each other. All 3 forms of stigma were also positively associated with avoidance coping.

TABLE 2.
TABLE 2.:
Pearson and Point–Biserial Correlations Between Study Variables (N = 202)

Mediation Analyses

Results from multivariate analyses for all 3 mediation models are shown in Table 3. There was no evidence that race discrimination or sexual orientation discrimination was associated with avoidance coping, when controlling for the other forms of discrimination and demographic variables. In addition, indirect effects were not significant for race discrimination or sexual orientation discrimination. There was a significant indirect effect of HIV-related discrimination on tobacco use through its effect on avoidance coping (path coefficients are shown in Fig. 1). HIV-related discrimination was significantly associated with avoidance coping b (SE) = 0.37 (0.08), P < 0.001, 95% CI: (0.90 to 2.59). Avoidance coping was significantly associated with tobacco use, b (SE) = 0.78 (0.28), AOR = 2.18, P = 0.006, 95% CI: (0.22 to 1.34). The odds of current tobacco use more than doubled for each point increase in avoidance coping. The bootstrap confidence intervals derived from 2000 samples indicated that the indirect effect of HIV-related discrimination on tobacco use through avoidance coping was significant b (SE) = 0.29 (0.14), 95% CI: (0.06 to 0.62). This finding suggests a significant mediation effect such that the odds of being a current smoker increase 34% for every point increase in HIV-related discrimination through its effect on avoidance coping, while controlling for demographic variables, race discrimination, and sexual orientation discrimination.

TABLE 3.
TABLE 3.:
Multivariate Analyses for 3 Forms of Discrimination on Tobacco Use, With Mediation Effect of Avoidance Coping
FIGURE 1.
FIGURE 1.:
Mediation model depicting the indirect effect of HIV-related discrimination on tobacco use through avoidance coping, controlling for age, sex, race, sexual orientation, education, racial discrimination, and sexual orientation discrimination. Associations are presented as unstandardized path coefficients. c' is the direct effect, c is the total effect, ab is the indirect effect. Statistical significance is noted as follows: **P < 0.001; *P < 0.05.

DISCUSSION

The present study examined the associations between different forms of discrimination, avoidance coping, and tobacco use in a sample of PLWH in the southeastern United States. To date, reasons for the disproportionate rate of smoking in PLWH have not been well understood.36 In the present sample of PLWH recruited from an HIV clinic in Alabama, there was evidence that avoidance coping explains the relationship between HIV-related discrimination and current tobacco use, when controlling for demographic variables and other forms of discrimination (race and sexual orientation discrimination).

There has been consistent evidence of disparities in tobacco use over the course of the HIV epidemic,3,4,8,37–39 yet little progress has been seen in reducing the prevalence of use among PLWH. Thus, it is imperative to understand the factors that put PLWH at risk of tobacco use and that sustain tobacco use behavior. Results of this study suggest that HIV-related discrimination is a risk factor for tobacco use following previous research that has linked experiences of race discrimination and discrimination toward sexual minorities to tobacco use.15,16,18–20,40 Furthermore, results of the present study suggest that tobacco use is an outcome of an avoidant approach to cope with stress among people who experience discrimination.

HIV-related discrimination is related to tobacco use even when accounting for other forms of discrimination. This finding aligns with a previous investigation in which HIV-related discrimination was associated with depression when accounting for race and sex discrimination in a sample of African, Caribbean and black women in Canada.41 One explanation Logie et al made for their findings was that experiences of HIV discrimination likely varied more compared with the other forms of discrimination in their sample of women. However, Bogart et al12 found that race discrimination predicted ART adherence when controlling for HIV and sexual orientation discrimination. They suggested that African American men may encounter race discrimination more because race is visible, which in turn strengthens its association with health behavior. It is possible that HIV-related discrimination is the most salient form of discrimination to PLWH in this sample of men and women in the southeastern United States. Thus, it was HIV-related discrimination that drove the indirect effect on tobacco use compared with other forms of discrimination that have previously demonstrated associations with tobacco use. It is also possible that intersectionality (in this case, the degree to which race and sexual orientation shape one's experience with HIV and related discrimination) makes it difficult to disentangle the unique effects of race or sexual orientation discrimination on tobacco use behavior when in the context of HIV-related discrimination.13,14

These findings should be interpreted in the light of some limitations. Chiefly, these results are cross-sectional. The findings reported here are exploratory and should be interpreted as suggestions for potential causal paths that should be further investigated in prospective and longitudinal studies. Second, participants were recruited from an HIV primary care clinic in an urban area in the southeast United States and may not represent the experiences of PLWH who receive care in other settings or geographical areas or who are not connected with medical care. Tobacco use was a patient-reported outcome at the clinic level and abstracted from clinic records. As a result, the outcome is subject to social desirability bias and underreporting. In addition, experiences of discrimination were measured in this study, and therefore, these findings do not reflect effects of other dimensions of stigma (internalized stigma, anticipated stigma, and community stigma) on tobacco use. Future research may help elucidate whether experiences of discrimination are unique in relation to tobacco use or if there are differential effects of stigma dimensions on tobacco use behavior.

Three forms of discrimination were assessed using parallel items. This approach was chosen after previous research on the experiences of multiple forms of discrimination12,41 but may reflect some response bias. Correlations between forms of discrimination were not exceedingly high in this sample, suggesting that results likely reflect participants' true experiences. These results should be interpreted in the light of participants' perceived experiences of discrimination, rather than objective observations of discrimination. Another potential limitation is the exclusion of participants who were using other substances, as tobacco use may occur in the context of other drug use. Previous research has explored associations between HIV stigma and substance use (alcohol and stimulant use),42–44 and the present study offered the opportunity to examine associations between experiences of discrimination and tobacco use independent of other substance use. Future research should examine the roles of stigma and discrimination in polysubstance use, perhaps while also accounting for the potential stigma associated with tobacco and drug use.

These findings have implications for continued work on the implementation of stigma reduction interventions to help address tobacco use and other health disparities among PLWH. A recent meta-analysis suggested that more rigorous empirical studies are needed, but stigma reduction interventions can have sustaining effects especially when implemented with professional samples (eg, health care workers).45 Indeed, PLWH report greater likelihood of making a smoking quit attempt when it has been discussed with a health care provider.46,47 Health care providers stand to make greater impact on enhancing motivation to quit using tobacco when rapport is strong, and they are attuned to the unique stressors their patients face.

Social and psychological determinants of tobacco use behavior must be accounted for in tobacco research and interventions. Pharmacological tobacco cessation approaches may not be sufficient in reducing tobacco use, as they do not replace the function of tobacco use behavior. Moreover, evidence for nicotine replacement and other medication therapies for tobacco cessation in PLWH is dependent on access to therapies and motivation to quit.36 Mobile and web-based interventions have also shown good efficacy and acceptability for smoking cessation and allow for more potential access to interventions.36

Coping offers an accessible clinical focus for intervention. As such, tobacco use cessation programs can extend their reach by focusing on the unique stressors that PLWH face and by identifying adaptive replacements for smoking that PLWH can access and use. Previous research suggests that tobacco use may be a means for people to self-soothe and reduce distress in social situations where discrimination may be experienced.25 In cases where tobacco is used as a coping tool, contingencies will be needed to bolster motivation. In behavioral and motivation-based tobacco cessation approaches, the function of tobacco use should be validated, and appropriate, accessible, and effective replacements need to be addressed. Bolstering resilience coping resources may be most effective in response to HIV-related discrimination41 in addition to reducing avoidance coping approaches. Interventions appear to be most effective when they are tailored to the individual needs of PLWH, including mental health needs and socioeconomic barriers.48 The integration of psychologists, social workers, and other mental health professionals into the landscape of HIV care can help address motivation to quit, provide accessible interventions, bolster support, and supplement with community-based resources (eg, tobacco quit-lines, cessation groups embedded in gyms, or churches).

CONCLUSIONS

In summary, understanding unique risk factors for tobacco use among PLWH can help improve tobacco prevention and cessation programs. As we continue to see successes in reducing HIV transmission, our attention must shift to reducing morbidity and mortality among PLWH. By addressing the large disparity in tobacco use among PLWH, gains can be made in reducing acute and chronic health conditions that reduce health-related quality of life and decrease life expectancy. Future research on the associations between stigma and discrimination, coping, and tobacco use should use prospective and longitudinal designs to further explore the dynamics of these associations over time. At the individual level, interventionists should consider smoking as a functional behavior to cope with the potential stress of HIV-related discrimination, which may enhance tobacco prevention and cessation programs. At the structural and community level, more empirical work is needed to test the effectiveness of stigma and discrimination reduction interventions that could help reduce health disparities, including tobacco use, among PLWH.

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Keywords:

HIV; discrimination; tobacco use; coping; intersectional stigma

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