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AIDS:
doi: 10.1097/QAD.0b013e3283617500
Epidemiology and Social

Efficacy of a culturally congruent HIV risk-reduction intervention for behaviorally bisexual black men: results of a randomized trial

Harawa, Nina T.a; Williams, John K.b; McCuller, W.J.a; Ramamurthi, Hema C.a; Lee, Martina; Shapiro, Martin F.c; Norris, Keith C.a; Cunningham, William E.c

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Author Information

aDepartment of Research/Life Sciences Institute, College of Medicine, Charles R. Drew University of Medicine and Science (CDU)

bDepartment of Psychiatry and Biobehavioral Sciences

cDivision of General Internal Medicine and Health Services Research, University of California, Los Angeles, California, USA.

Correspondence to Nina T. Harawa, MPH, PhD, Charles R. Drew University, Los Angeles, California, USA. E-mail: ninaharawa@cdrewu.edu

Received 1 August, 2012

Revised 6 March, 2013

Accepted 20 March, 2013

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Abstract

Objectives:

Black men who have sex with men and women (MSMW) experience high HIV rates and may not respond to interventions targeting gay-identified men. We tested the efficacy of the Men of African American Legacy Empowering Self (MAALES), a multisession, small-group holistically framed intervention designed to build skills, address sociocultural issues, and reduce risk behaviors in black MSMW.

Design:

From 2007 to 2011, we enrolled 437 black MSMW into a parallel randomized controlled trial that compared MAALES to the control condition, a single, individualized HIV risk-reduction session.

Methods:

Participants completed surveys at baseline, 3 months, and 6 months postintervention. We used multiple regressions to compare risk behaviors at follow-up between the intervention and control groups while adjusting for baseline risk behaviors, time between assessments, other covariates, and clustering. We used inverse probability weighting (IPW) to adjust for loss-to-follow-up while carrying out these regressions with the 291 (76.4%) randomized participants who completed at least one follow-up.

Results:

Participants were largely low-income (55% reported monthly incomes <$1000); nearly half had previously tested HIV positive. At 6 months of follow-up, unadjusted within-group analyses demonstrated reduced risk behaviors for the MAALES but not the control group. Adjusted results indicated significant intervention-associated reductions in the numbers of total anal or vaginal sex acts [risk ratio = 0.61; 95% confidence interval (CI) 0.49–0.76], unprotected sex acts with women (risk ratio = 0.50; 95% CI 0.37–0.66), and female partners (risk ratio = 0.56; 95% CI 0.44–0.72). Near significant reductions were observed for number of male intercourse partners.

Conclusion:

The MAALES intervention was efficacious at reducing HIV risk behaviors in black MSMW.

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Introduction

Blacks experience large disparities in HIV infection across behavioral risk groups. Transmission related to MSM is a significant contributor among black people in the United States, accounting for almost 73% of new infections among black men [1] and an unknown number of cases among black women whose male partners were infected through sex with men [2]. HIV prevalence and incidence are much higher among black than white or Hispanic MSM [3]. Black MSM are also more likely than white MSM to be bisexually active or identified [men having sex with men and women (MSMW)] and less likely to disclose their same sex activities to others [4]. Despite large racial disparities in HIV risk, few randomized trials of prevention interventions tailored for black MSM have been published [5–7].

Interventions targeting behaviorally bisexual men of any race/ethnicity are also rare. Because of their frequent lack of identification with gay communities or labels, experiences of racism, concerns with fulfilling traditional gender expectations, discreteness regarding same-sex behavior, and relationships with both men and women, many black MSMW may not respond to interventions targeting gay-identified men [4,8–10]. Hence, intervention experts and community leaders have called for prevention approaches for this subgroup that address these intersecting concerns and identities [8,11,12].

To address the needs of black bisexual men, paradigm shifts must occur in how sexuality is conceptualized. Attempts to explore same-sex behavior and understand sexual identity development have contributed to models describing sexual exploration as a process that usually begins in early adolescence and progresses toward a fixed sexual identity that is consistent with sexual activities [13–15]. Such models are the basis for interventions that place gay identities and gay community affiliations as core components. An alternative approach, considers a variety of activities, such as sex with women, with men, with transgender people, or a combination at different times or in different circumstances, as potentially normative expressions of sexual fluidity [16,17]. Some evidence supports this alternative approach, particularly in international settings and among ethnic minority populations in the United States [18–21].

Gay-identity developmental models describe ambivalence regarding identification as a sexual minority as an immature stage of an exploration process [19]. Although empirical research has supported these models among some white sexual minorities [19,22–24], alternative conceptualizations may better address the seemingly incongruous sexual behaviors and identities observed among many black MSM/MSMW [4]. The concept of sexual identity fluidity and many nonwestern models of gender and sexuality [25,26] indicate that partner choice may be context-dependent and serve purposes beyond meeting sexual desires – such as fulfillment of familial responsibilities and gender norms. These alternative views support interventions that target specific recent behaviors, regardless of reported sexual identity.

In response to the need for MSMW-tailored interventions, we developed the Men of African American Legacy Empowering Self (MAALES), a theoretically grounded, culturally congruent intervention aimed at decreasing sexual risk behaviors in African–American MSMW, and tested its efficacy in collaboration with three community-based agencies in Los Angeles. The collaborating agencies were not gay identified and provided a range of services to at-risk and HIV-infected clients [27]. Here, we report on the outcomes of this trial.

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Methods

We conducted a randomized controlled trial, comparing individuals who were evenly assigned to the multisession small-group MAALES intervention and the control condition – a brief, one-time, individualized HIV education and risk-reduction session. Assessments were collected at baseline (preintervention) and after receiving the intervention conditions immediately (post), and at 3 and 6 months later to assess for self-reported changes in risk behaviors.

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Intervention: Men of African American Legacy Empowering Self

A comprehensive description of the MAALES intervention and its theoretical basis can be found in the article by Williams et al. 2009 [27]. Briefly, the intervention was developed with the collaborating agencies and informed by community advisory board members and extensive formative research [27]. Intervention activities and objectives were guided by the Theory of Reasoned Action and Planned Behavior [28,29], Empowerment Theory [30], and Critical Thinking and Cultural Affirmation Model – an Afrocentric model developed by one of our community collaborators [31] and based on Social Cognitive Theory [32,33]. To best mirror eventual intervention dissemination, many of the intervention sessions were held at the partner agencies.

MAALES’ primary risk-reduction goals were to decrease frequency of unprotected intercourse and number of intercourse partners and reduce sex while under the influence of drugs. Participants were also encouraged to identify and address other health risks such as diet, smoking, or lack of exercise. This holistic approach allowed participants to make multiple connections between the influences discussed and their health behaviors, provided a comfortable starting point for sensitive discussions, and encouraged use of specific intervention tools in multiple areas of the men's lives. The MAALES intervention involved six 2-h small-group sessions conducted over 3 weeks (i.e. core sessions) with booster sessions at 6 and 18 weeks postintervention. Intervention sessions were facilitated by two African–American men who were knowledgeable about HIV, familiar with the population, and experienced with group facilitation. We trained the facilitators on intervention implementation, but did not require prior specialized skills or education for this role.

Utilizing a small-group format, MAALES promoted behavior change for personal benefit. It addressed social influences and cultural norms to encourage health-promoting behaviors that also benefited participants’ sexual partners, families, and communities. Gender and ethnicity were emphasized, with participants’ shared legacies as African–American men providing a starting point for many discussions. Sessions 1 and 2 focused on past experiences and social expectations of African–American men, historical discrimination and disenfranchisement, risky behaviors, HIV testing, and societal impacts on individual health and sexual decision-making. Sessions 3 and 4 focused on current health behaviors, with specific attention on developing sexual risk-reduction goals and communication and empowerment skills and identifying personal motivators for preserving health. Sessions 5 and 6 focused on overcoming challenges to risk-reduction and developing strategies for sustaining and committing to these efforts. The 2-h group booster sessions reviewed concepts and skills learned in the core curriculum and encouraged participants to share successes and challenges in applying them.

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Control condition: an HIV education and risk-reduction session

The control condition involved a client-centered HIV education and risk-reduction session based on a standard HIV test counseling approach [34]. This 15–20-min session occurred at or soon after randomization and explored the individual's HIV/sexually transmitted disease (STD) risks, their priorities for risk reduction, and discussed the importance of regular HIV testing. Participants identified three risk-reduction action items that they would commit to over the next month. Control assignees were also waitlisted and invited to attend MAALES sessions after their 6-month postinterview; however, the post-MAALES follow-up data for those waitlisted are not reported here.

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Recruitment

Following Institutional Review Board (IRB) approval, recruitment began August 2007 and ended May 2011 due to the funding cycle. Recruitment strategies included outreach in public venues, provider referrals, and incentivized referrals from participants. We also posted flyers and ran advertisements in buses, on bus benches, in local community publications, and on Internet sites. The majority of recruitment efforts occurred in venues that attracted African–American men as a group, with fewer efforts in gay-oriented venues (Ramamurthi et al., submitted). Trained staff screened interested individuals either in the field or by phone.

To be eligible, participants had to self-identify as a black/African–American man, have been labeled male at birth, and be at least 18 years of age. Participants also had to report at least one sexual activity (mutual masturbation, oral, vaginal, anal intercourse) with a biological female and a male (or male-to-female transgender) in the past 24 months and could not have participated in an HIV-prevention program in the prior 6 months.

In order to detect moderate effect sizes (at least 0.36 standard deviations) with 80% power and a one-sided significance level of 0.05, and assuming loss-to-follow-up of 20% and clustering effects (using an intraclass correlation of 0.05, to account for clustering inherent to a group training setting, and an average cluster size of six participants), we aimed to randomize at least 300 participants.

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Data collection
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Assessments

Eligible individuals were scheduled for a baseline interview at the study offices of Charles Drew University (n = 299), our community collaborators (n = 96), or in the field (n = 42). After obtaining informed consent, participants completed the audio computer-assisted self-interview (ACASI) baseline survey (median completion time = 88 min). Follow-up ACASI interviews were scheduled within 2 weeks following session 6, and at 3 and 6 months following session 6, the last core intervention session. We only analyzed behavior changes at the 3-month and 6-month assessments (median completion time = 55 min). Participants in both study arms were offered condoms at each follow-up survey.

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Instrument

The survey assessed key background characteristics (e.g. sociodemographics, incarceration history, and self-reported HIV status) and HIV/STD testing history; hypothesized mediators (e.g. HIV knowledge, condom-related norms, intentions, and self-efficacy, HIV stigma, gender role expectations, and internalized homophobia); and potential moderators (e.g. psychological distress symptoms, experiences of racism) [35]. The primary outcomes were reported for the prior 90 days and included the following:

  1. Number of male, female, and male-to-female transgender intercourse partners;
  2. Number of episodes of any anal or vaginal intercourse, any unprotected intercourse, and any unprotected serodiscordant intercourse;
  3. Substance use – any binge drinking (i.e. five or more drinks in any single day), any illicit drug use, number of days using drugs (specifically, for heroin, cocaine, poppers, club drugs, and methamphetamines – drugs that are strongly associated with elevated HIV risk), and sex while using any of these ‘risky drugs’.

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Randomization

The Data Manager used a balanced-block randomization procedure with blocks of 20 to generate assignments in which each 20 assigned an even number to the control and intervention groups. Each time that a sufficient number of new study participants completed the baseline, an interviewer attempted to recontact each participant. For those wanting to continue, the interviewer then opened a sealed envelope containing the next random assignment and informed the participant of his allocation (Fig. 1). Those allocated to the intervention were invited to attend the next set of MAALES sessions. Those allocated to the control group were provided with the client-centered HIV education and risk-reduction session. We randomized individuals into a total of 39 cohorts, with a cohort representing all those who were assigned to the intervention and control conditions at a given time point. However, an individual assigned to the intervention group who was unable to attend his first assigned set of MAALES sessions could participate in a subsequent set of MAALES sessions provided it started within 90 days of his baseline. The individual's identifying cohort was then changed accordingly.

Fig. 1
Fig. 1
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Analysis

All analyses were conducted using SAS (version 9.2; SAS Institute Inc., Cary, North Carolina, USA). Descriptive statistics were used to examine differences between the intervention and control conditions on key baseline variables. To compare intervention-associated changes at the 6-month follow-up between conditions, multiple regression models were employed. The models controlled for baseline values of the key outcome variables and independent variables that differed between those assigned to each condition at baseline (P <0.1). We focused on the 6-month assessment because of difficulties in obtaining both follow-up interviews and a desire to assess longer-term behavior changes. When participants had completed only the 3-month assessment (n = 17), that value was used for the 6-month result based on the last-value-carried-forward (LVCF) imputation paradigm. We used a zero-inflated Poisson regression model to estimate the relative reduction in frequency of unprotected intercourse and numbers of partners [36]. This model accounts for both true zeros (individuals who did not experience the event) and structural zeros (individuals who did not have the opportunity to experience the event). Risk ratios were determined from the Poisson model by exponentiating its regression coefficients. For dichotomous outcomes, we used logistic regression to estimate the relative odds of reporting any engagement in the risk behaviors.

The multiple regressions were conducted in two ways, with those participants (76.4%) who were followed up at the 3-month or 6-month interviews. In the primary analysis, inverse probability weighting (IPW) was used to control for potential loss-to-follow-up bias. These weights were estimated using a logistic multiple regression model to predict loss to follow-up and retained participants were weighted by the inverse of their predicted probability of having been lost to follow-up [37]. Thus, the weights varied according to the similarity of a participant to a nonretained one, potentially making the retained group better resemble the entire population of interest. Sociodemographic and behavioral characteristics that are known to influence retention were used as model predictors and included age, education, income, living situation, incarceration history, self-reported HIV status, and substance use. In addition, a secondary, unweighted, complete-case analysis was conducted for those with data available at both baseline and follow-up.

The statistical models incorporated data clustering and unstructured variance-covariance models, which were based on an iterative approach requiring the determination of starting values for the initial iteration. To estimate these, a generalized model without clustering was employed. Ninety-five percent Wald confidence intervals (CIs) were calculated for the parameters estimates.

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Results

Of the 862 individuals screened, 491 (57%) were found eligible. Of these, 437 enrolled and 386 were randomized into the intervention (n = 198) and control (n = 188) conditions. Three of those randomized were later determined to be ineligible and two had unusable survey data. Our analyses included the remaining 381 randomized participants, based on their random allocation. Of assigned MAALES participants, 81% completed at least one session and 58 and 73% completed their 3-month and 6-month assessments, respectively. Those attending session 1, attended a mean of 5.0 of the 6 core MAALES sessions. Of assigned control participants, 83% completed the session and 64 and 71% completed their 3-month and 6-month assessments, respectively.

The mean age was 42.8 ± 10.2 years, with the modal group being between 40 and 49 years of age. Although most participants had completed high school, a general equivalency diploma (GED), or higher educational attainment, their monthly incomes were low and unemployment rates were high. Over 35% had experienced housing instability in the prior 12 months and over 75% had been incarcerated in their lifetimes. Nearly half of the participants had previously tested HIV-positive, 42% had last tested HIV-negative, and 7% had never tested. The study sample's high HIV prevalence may partially explain its low socioeconomic status.

Most participants self-identified as bisexual (60%) and nearly 60% reported having oral, vaginal, or anal sex partners in the prior 90 days who were both men and women. Although all participants reported some type of sex with both men and women in the past 2 years, 20% reported only male and 11% reported only female oral, vaginal, or anal sex partners in the last 90 days. In addition, 19% reported male-to-female transgender sex partners.

Few baseline differences were observed between conditions; however, controls were significantly more likely to report recent housing instability and current treatment for substance abuse (Table 1). In addition, a test of between-group differences at baseline was conducted for the outcome variables. Although one of the estimated P values approached significance (P = 0.06 for any unprotected intercourse with men or women), the other P values were greater than 0.10.

Table 1
Table 1
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The crude means and standard deviations for the outcome variables at baseline and follow-up by condition are reported in Table 2. Counts and percentages are reported for dichotomous variables. Although not the principal method of analysis for this study, we evaluated within-group changes from baseline to 6-month follow-up for each condition. Statistically significant declines in sexual risk behaviors were observed for the intervention group. In contrast, these behaviors stayed the same or increased among the control group. We note that changes in overall numbers of unprotected anal sex acts with males are driven by a small portion of the sample. At baseline, only 28 and 23% of the intervention and control groups reported unprotected anal sex with male partners (including male-to-female transgender partners). This pattern, together with the skewed distribution of unprotected anal sex frequency, contributes to high standard deviations. Declines were observed in the intervention group in mean number of unprotected anal sex acts with males (P = 0.04). Unprotected sex with female partners was reported by 46 and 41% of the intervention and control groups at baseline and declines were again observed in the intervention group (P = 0.01). Finally, 24 and 16% of the intervention and control groups reported any sex under the influence of ‘risky’ drugs at baseline; at follow-up, these percentages declined to 15% (P = 0.05) and 12% (P = 0.29), respectively.

Table 2
Table 2
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Table 3 provides results from the multiple regression models comparing the intervention to the control group at the 6-month follow-up survey controlling for baseline. The intervention group reported a 39% lower frequency of unprotected intercourse overall [IPW risk ratio = 0.61; 95% confidence interval (CI) = 0.49–0.67]. Estimates for the intervention's effects on sex specifically with female partners are quite robust and highly significant across analyses. For unprotected sex frequency with females, the IPW risk ratio estimate is 0.50 (95% CI = 0.37–0.66); the complete case risk ratio estimate is 0.52 (95% CI = 0.38–0.72). For number of female partners, the IPW and complete case risk ratio estimates are 0.56 (95% CI = 0.44–0.72) and 0.59 (95% 0.45–0.77), respectively.

Table 3
Table 3
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Frequency of unprotected sex with males and number of male anal sex partners also showed relative reductions that were less marked. These estimates did not reach statistical significance but had P values of less than 0.1 for the IPW regressions. For unprotected sex frequency with males, the IPW risk ratio estimate is 0.63 (95% CI = 0.37–1.09); the complete case risk ratio estimate is 0.63 (95% CI = 0.35–1.12). For the number of male partners, the IPW risk ratio estimate is 0.75 (95% CI = 0.55–1.01) and the complete case risk ratio estimate is 0.80 (95% 0.57–1.11). Finally, the odds ratios indicate that MAALES likely had no effect on the occurrence of any risky drug use or sex while high on risky drugs.

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Discussion

MAALES demonstrated efficacy for reducing the frequency of unprotected sex with female partners and the numbers of female sex partners among black MSMW. MAALES may also reduce risk behaviors with male partners; however, the low frequency of unprotected anal sex with other males made it difficult to detect intervention-related changes. Research with larger samples or higher proportions of MSMW who frequently engage in unprotected sex with males, would be needed to fully assess the intervention's impact on this behavior. Nevertheless, our participants, similar to MSMW in a number of observational studies [38–41], were more likely to report unprotected sex with their female than with their male partners. These studies have also found lower levels of unprotected sex with male partners in MSMW than in men who have sex with men only (MSMO) [4,42,43]. Hence, an HIV intervention that reduces risky sexual activity with females may be particularly relevant to MSMW. Although MAALES focused on individual risk reduction, it framed health promotion within a broader context that also valued the well being of individuals who were intimately and communally related to participants. This paradigm, together with a conceptual framework that acknowledged sexual fluidity, may explain the findings with female partners.

The likelihood of risky drug use or sex under the influence of risky drugs did not differ between conditions. However, we did not examine intervention-associated changes in the frequency of these behaviors among users. Given that some participants may reduce rather than halt this activity, changes in frequency warrant investigation.

Limitations related to sample composition and retention may lessen generalizability of study findings. Participants tended to be over 35 years of age and to report low socioeconomic status. Also, despite our efforts to engage men of diverse sexual identities, heterosexually identified men may have been less willing than other MSMW to engage in a group intervention. Finally, even with intensive retention efforts, loss to follow-up was significant. A potential contributor to this is the high incarceration rate of black men [44]. At least 16% of participants who were not retained were incarcerated at their 6-month follow-up interview. Bias related to loss to follow-up is minimized by the fact that retention rates differed little between study conditions and by our use of inverse proportionality weighting, the state-of-the-art method for reducing this potential bias. However, like all bias-reduction methods, the entire loss-to-follow-up bias cannot be eliminated with IPW, which depends on the available data and the validity of the logistic model. Nevertheless, the consistency between the weighted multiple regression findings, the within-group unadjusted analyses, and the unweighted complete case regressions strengthens our conclusions.

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Conclusion

The demonstrated efficacy of MAALES has important implications for future HIV prevention efforts. Despite factors that may have dissuaded participation of black MSMW in a group intervention, we reached our enrollment targets, were able to engage a large majority of the participants, and experienced high session attendance. We attributed this success to our community-partnered approach, extensive retention efforts, and to the intervention's emphasis on gender-identity and ethnic-identity and acknowledgement that sexual behaviors may vary with circumstances and over the lifespan.

Study conditions were designed to closely reflect real-world implementation. Intervention facilitators were from community agencies where the sessions were frequently held. Of significant benefit is that interventions administered in community agencies have the ability to provide ongoing support for positive behavior change even after formal sessions end. As the HIV field continues to move toward biomedical prevention efforts, the important role of social/behavioral interventions for engaging and supporting at-risk individuals remains [45]. Holistic HIV interventions in particular can help to endorse general prevention and health management. Such efforts may be vital for groups like black MSMW whose concerns regarding HIV stigma, bi/homophobia, and financial hardship may complicate engagement in biomedical prevention and HIV treatment.

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Acknowledgements

The authors would like to acknowledge their collaborators, coinvestigators, and study team members: Cleo Manago, Sergio Avina, Trista Bingham, Tony Wafford, Hector Myers, Honghu Liu, Tyrone Clarke, Richard Hamilton, Marvin Jones, John Kelly, Sean Lawrence, Frank Levels, Alice Meza, Shirley McIntyre, Donta Morrison, Michelle Nkoli, and Dominique Woods. Special thanks to study participants.

All authors have read and approved the final article. N.T.H. co-led the study, wrote most of the article, helped guide the analyses, and incorporated revisions into a final draft. J.K.W. co-led the study, wrote sections of the article, and provided extensive critical input into revisions. W.J.McC. carried out the data analyses, prepared the tables, and edited drafts. H.C.R. was the study director, prepared the CONSORT chart, and provided extensive critical input into revisions. M.L. oversaw all of the data analyses and wrote the analysis section. M.F.S. and K.C.N. assisted with conceptualizing the article and provided critical input into revisions. W.E.C. assisted with conceptualizing the article and provided extensive critical input into revisions throughout the editing process.

This study was supported by the Drew/UCLA Project EXPORT, 2P20MD000182 from NIMHD. Additional funding for formative and pilot work was provided by the Universitywide AIDS Research Program (now the California HIV/AIDS Program), grant numbers AL04-DREW-840, AL04-UCLA-841, AL04-AMASS-842, AL04-PRCF-843, and AL04-JWCH-844.

Clinical Trials Registration Number: NCT 01492530.

The full trial protocol can be obtained by contacting Dr Nina T. Harawa at ninaharawa@cdrewu.edu or Dr John K. Williams at keoniwmd@aol.com.

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Conflicts of interest

The authors have no competing interests to declare.

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Keywords

African–Americans/ethnology/psychology; bisexuality; black/African–American; HIV infections/epidemiology/ethnology/∗prevention & control; homosexuality; risk-reduction behavior

© 2013 Wolters Kluwer Health | Lippincott Williams & Wilkins

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