The role of dyad-level factors in shaping sexual and drug-related HIV/STI risks among sex workers with intimate partners

Intertwined epidemics: progress, gaps, and opportunities to address intimate partner violence and HIV among key populations of women

The intersection of intimate partner violence and HIV is a public health problem, particularly among key populations of women, including female sex workers, women who use drugs, and transgender women, and adolescent girls and young women (aged 15-24 years). Intimate partner violence results in greater risk of HIV acquisition and creates barriers to HIV prevention, testing, treatment, and care for key populations of women. Socioecological models can be used to explain the unique multilevel mechanisms linking intimate partner violence and HIV. Few interventions, modelling studies, and economic evaluations that concurrently address both intimate partner violence and HIV exist, with no interventions tailored for transgender populations. Most combination interventions target individual-level risk factors, and rarely consider community or structural factors, or evaluate cost-efficacy. Addressing intimate partner violence is crucial to ending the HIV epidemic; this Review highlights the gaps and opportunities for future research to address the intertwined epidemics of intimate partner violence and HIV among key populations of women.

Systematic Review of Contraceptive Use Among Sex Workers in North America

OBJECTIVE

To systematically review the literature regarding contraceptive use by sex workers in North America and to understand factors that limit reproductive agency and affect contraceptive use and decision making.

DATA SOURCES

We searched PubMed, CINAHL, and Embase databases using the search terms "sex work(ers)," "transactional sex," "exchange sex," "prostitution," "contraception," "contraceptive agents," "birth control," "female," and "women."

STUDY SELECTION

Articles were eligible for inclusion in this review if they (a) reported quantitative or qualitative studies based in North America, (b) were written in English, (c) included sex workers (self-identified sex workers or engaged in sex work behavior) as the primary or secondary population of the study, (d) included a population assigned female sex at birth, (e) reported contraceptive outcomes for sex workers, and (f) were published in peer-reviewed journals. The initial search yielded 2,455 articles, and seven met the inclusion criteria.

DATA EXTRACTION

Two authors independently reviewed the articles and organized data in a table to capture study design, sample size and study population, study aims, and contraceptive use. We applied Connell's theory of gender and power as an analytic framework to further identify factors that limited reproductive agency.

DATA SYNTHESIS

Condoms were the most common method of contraceptive used across studies. The use of contraceptives varied by partner type (client vs. nonpaying intimate partners). Access to highly effective contraception was limited by perceived stigma, financial constraints, and substance use. Reproductive and harm reduction services that were co-located where women worked improved contraceptive use. Contraceptive use was affected by factors that limited reproductive agency, including stigma, substance use, intimate partner violence, and condom coercion.

CONCLUSION

The reliance of sex workers on partner-dependent contraception, such as condoms, combined with factors that limit reproductive agency over contraceptive use and decision making contribute to high potential for contraceptive failure and unintended pregnancy. More research is needed to understand the influence of different sexual partner types, pregnancy intention, and contraceptive decision making on the reproductive agency of sex workers.

Safer conception for female sex workers living with HIV in Dar es Salaam, Tanzania: Cross-sectional analysis of needs and opportunities in integrated family planning/HIV services

Background

With the advent of effective treatment, women living with HIV can plan for pregnancy while minimizing risk of transmission to infants and seronegative partners. Family planning (FP) services tend to focus solely on addressing contraceptive need, but HIV-positive women—including female sex workers—often plan to have children someday. Various “safer conception” strategies are now available to support women living with HIV achieve fertility intentions, and integrated HIV/FP services may be a promising platform to offer these services.

Methods

At integrated community-based HIV/FP service delivery sites operated by Jhpiego’s Sauti project in Dar es Salaam, we conducted exit interviews with 300 HIV-positive female sex workers. Descriptive analyses were conducted to describe their desire for children, use of condoms and other modern contraceptive methods, self-reported viral suppression, and knowledge of and interest in safer conception strategies. We conducted bivariate and multivariate logistic regression analysis to examine correlates of fertility desire among respondents.

Results

Median age of participants was 32. Nearly one-third wished to have a child within two years. Seventy-two percent had heard of having the HIV-positive partner taking ART to reduce sexual transmission during pregnancy attempts. Thirty-one percent felt the amount of FP content covered in the consultation was “too little.” Factors significantly associated with desire for children were having a nonpaying partner (adjusted odds ratio [AOR] 2.18, 95% confidence interval [CI]1.13–4.20) and having fewer children (AOR 0.65, 95% CI 0.48–0.87). Viral suppression was not associated with fertility desire.

Conclusions

Sex workers living with HIV attending integrated HIV/FP services have need for both contraception as well as safer conception counseling. This integrated service delivery modality is a promising platform for providing safer conception services. FP counseling for HIV-positive women should be broadened to broach the topic of safer pregnancy, as well as explicit counseling on strategies to minimize risk of sexual transmission to partners.

Inconsistent Condom Use Among Female Sex Workers: Partner-specific Influences of Substance Use, Violence, and Condom Coercion

Female sex workers (FSWs) are disproportionately affected by HIV. Inconsistent condom use (ICU) represents the most proximal risk for acquisition and transmission. We evaluate associations of partner-specific factors including physical and sexual violence, coercion, and substance use with ICU with clients and regular non-paying partners, respectively, among FSWs. Baseline survey data from a prospective cohort of 250 street-based FSW in Baltimore, Maryland, USA included partner-level drug and alcohol use, violence, condom coercion and ICU, in addition to individual and structural exposures. Logistic regression analyses were stratified by partner type, followed by path analysis where indicated. Within client and regular non-paying partnerships, FSWs reported prevalent recent violence (34.8%, 16%, respectively), condom coercion (42.4%, 9.9%, respectively) and ICU (39.2%, 44.4%, respectively). Recent physical or sexual violence enabled coercive condom negotiation (AOR_client 8.22, 95% CI 4.30, 15.73; AOR_{nonpayingpartner} 3.01 95% CI 1.05, 8.63). ICU with clients was associated with client condom coercion (AOR 1.76, 95% CI 1.03, 3.02), and client intoxication during sex (AOR 2.25, 95% CI 1.13, 4.45). In path analysis of client-FSW partnerships, condom coercion fully mediated the influences of both sex worker intoxication and recent violence on ICU. ICU with non-paying partners was associated with FSW intoxication during sex (AOR 8.66, 95% CI 3.73, 20.10), and past-year police violence (AOR 2.92, 1.30, 6.57). Partner-level substance use and gendered power differentials influenced FSWs' ICU patterns differently by partner type. ICU with clients was rooted solely in partner factors, and coercive condom negotiation mediated the roles of violence and partner-level substance use on ICU. By contrast, ICU with non-paying partners was rooted in partner-level substance use and police violence as a structural determinant. Addressing HIV risk behavior for FSWs requires condom promotion efforts tailored to partner type that addresses power differentials.

Managing the risk of intimacy: accounts of disclosure and responsiveness among people with HIV and intimate partners of people with HIV

It is well known that concerns about sexual risk tend to decline among people in intimate relationships where there is established commitment and trust. In the context of relationships at increased risk for HIV transmission, interactions involving disclosure and partner responsiveness are key to maintaining intimacy and physical safety. This paper explores concepts of risk and sexual intimacy articulated by a community sample of 30 people living with HIV and their intimate relationship partners. Data revealed the shifts in intimate relationship dynamics upon the disclosure of an HIV diagnosis, the importance of intimacy in the context of managing one or both partners' HIV care and responses to new advances in HIV prophylaxis. Findings suggest that participants' experiences of self-disclosure and partner responsiveness most often resulted in an increased sense of protectiveness from and for partners. This suggests that health-promoting messaging should be adapted to be more relevant to intimate couple communication and mutual support.

Understanding the Relationship Between Female Sex Workers and Their Intimate Partners: Lessons and Initial Findings From Participatory Research in North Karnataka, South India

While traditional HIV prevention programs with female sex workers (FSWs) in Karnataka, India, have focused on reducing HIV transmission between FSWs and clients through increased condom use, these programs have not fully addressed the transmission risk between FSWs and their nonpaying intimate partners (IPs). Condom use is infrequent and violence is recurrent in these relationships: Furthermore, there is little evidence on the precise nature of FSW–IP relationships. Our study addresses this knowledge gap to inform HIV programs targeted at FSWs. A series of workshops, using participatory tools, was held to explore FSW-IP relationships; 31 FSWs and 37 IPs participated. Three aspects of FSW–IP relationships were examined: how FSWs and IPs understand and interpret their relationships, factors influencing condom use, and the role of violence and its consequences. FSWs wish to be perceived as their IPs’ wives, while IPs expect their FSW partners to accept their dominance in the relationship. Nonuse of condoms signals fidelity and elevates the status of the relationship almost to that of marriage, which helps FSWs enter the category of “good” (married) women. Tolerating and accepting violence in these relationships is normative, as in other marital relationships; IPs justify violence as necessary to establish and maintain their power within the relationship. Both FSWs and IPs value their relationships despite the high degree of risk posed by low condom use and high levels of violence. Implications for program design include addressing current norms around masculinity and gender roles, and improving communication within relationships.

Sexual relationships, intimate partner violence and STI partner notification in Cape Town, South Africa: an observational study

Objectives

We aimed to identify individual and sexual partnership characteristics associated with partner notification (PN) among people with STI. We hypothesised that PN would be less likely in more casual sexual partnerships and in partnerships with intimate partner violence (IPV).

Methods

We conducted an observational study among the first 330 patients with STI enrolled in a trial of a behavioural intervention to reduce STI incidence, at a clinic in a poor, Cape Town community. We included 195 index patients (those reporting STI symptoms), and conducted longitudinal analyses using participant-completed questionnaires on the day of diagnosis and 2 weeks later. Using partnership data for five recent sexual partners, we assessed factors associated with reported PN with logistic regressions, adjusting for repeated measurements on the same participant for each partner.

Results

The sample included 99 males with 303 partners and 96 females with 158 partners. Males reported perpetrating IPV in 46.2% of partnerships. Females reported being IPV victims in 53.2% of partnerships. Males notified 58.1%, females 75.4% of partners during the 2 weeks following diagnosis. Type of partner was an independent correlate of PN for males and females, with the odds of PN lower in more casual partnerships. For males, reporting physical IPV perpetration in the partnership was an independent correlate of PN. For females, there was no association between IPV victimisation in a partnership and PN.

Conclusions

Efforts to decrease the pool of infectious partners need to have a strong focus on the promotion of PN in casual relationships and one-night stands. IPV was not identified as a barrier to PN. In future, we need to investigate the association between IPV with an objective measure of PN success such as partner testing or treatment, or index patient reinfection.

Clinical trial registration

PACTR201606001682364; Pre-results.

Violence, trauma and living with HIV: Longitudinal predictors of initiating crystal methamphetamine injection among sex workers

BACKGROUND

Despite rapid increases in crystal methamphetamine (CM) use worldwide and established gendered patterns of use, empirical research on CM injection initiation among sex workers is limited. Given the wide range of harms associated with CM, alongside stimulant effects including sexual dis-inhibition and prolonged awake-ness, this study aimed to longitudinally investigate socio-structural predictors of initiating CM injection among sex workers in Vancouver, Canada.

METHODS

Data (2010-2014) were drawn from a community-based cohort of women sex workers: AESHA (An Evaluation of Sex Workers Health Access). Participants completed bi-annual interviewer-administered questionnaires and HIV/STI testing. Kaplan Meier methods and Cox proportional hazards regression were used to model predictors of CM injection initiation among CM injection-naïve participants.

RESULTS

Of 455 participants eligible at baseline, 14.3% (n=65) injected CM for the first time over follow-up, with an incidence density of 6.79 per 100 person-years (95% Confidence Interval [CI] 5.30-8.69). In multivariable analysis, injection heroin use (Adjusted Hazard Ratio [AHR] 6.11; 95%CI 3.24-11.52), having an intimate partner who injects drugs (AHR 2.93; 95%CI 1.57-5.46), workplace violence (AHR 2.85; 95%CI 1.74-4.67), HIV seropositivity (AHR 2.69; 95%CI 1.45-5.00), and childhood abuse (AHR 1.86; 95%CI 0.99-3.49) were independently associated with initiating CM injection.

CONCLUSIONS

Findings underscore the gendered and social risk environment of CM injection initiation among sex workers. The strong influences of historical/workplace violence, coupled with heroin injection (known to be self-medicating for post-traumatic stress) as a primary risk pathway, emphasize the urgency of increasing access to integrated, trauma-informed addiction treatment and HIV care for marginalized women.