Community-based strategies to strengthen men’s engagement in the HIV care cascade in sub-Saharan Africa


Monica Sharma and colleagues discuss evidence-based approaches to improving HIV services for men in sub-Saharan Africa.


Published in the journal: . PLoS Med 14(4): e32767. doi:10.1371/journal.pmed.1002262
Category: Policy Forum
doi: https://doi.org/10.1371/journal.pmed.1002262

Summary

Monica Sharma and colleagues discuss evidence-based approaches to improving HIV services for men in sub-Saharan Africa.

Summary points

  • Men in sub-Saharan Africa are less likely than women to engage in HIV services across the care cascade, resulting in poorer clinical outcomes.

  • Health care facilities have achieved limited HIV testing and treatment coverage in men, with barriers including confidentiality concerns, distance to the facility, inconvenient hours, and perceptions that facilities provide women-centered services. Other barriers to male engagement include stigma, poverty, and feelings of compromised masculinity associated with seeking health care.

  • Community-based HIV interventions can overcome barriers associated with facilities and increase men’s engagement in care. Social and livelihood interventions can reduce stigma and poverty.

  • Community-based testing interventions (particularly home and mobile) have high acceptability and reach more men than health care facility-based approaches. For men testing HIV positive, providing immediate antiretroviral therapy (ART) is associated with high retention and viral suppression. This strategy of “collapsing the cascade” provides streamlined services and reduces loss to follow-up.

  • Community-based interventions should be tailored to the needs of men to maximize uptake, including flexible hours, multiple follow-up visits, and convenient and private access to care. Integrating HIV testing into screening for chronic disease can reduce stigma and increase program efficiency. More research is needed on male-centered approaches to increase men’s engagement in HIV services, particularly later in the cascade. Interventions targeted to men who have sex with men are urgently needed.

  • The current state of evidence strongly suggests that community-based test-and-treat strategies can reduce the gender disparity in HIV testing and treatment by achieving higher levels of ART coverage and viral suppression in HIV-positive men.

Introduction

The successful scale-up of antiretroviral therapy (ART) in sub-Saharan Africa (SSA) will require policy makers to address the gender gap in HIV testing and treatment access. Men in SSA are less likely than women to undergo HIV testing and more likely to start ART at advanced disease stages and interrupt or drop out of ART [1]. These disparities have resulted in a life expectancy gap of up to 10 years between HIV-positive men and women [25]. Low male testing and treatment rates also increase HIV transmission to female partners. For example, pregnant women in SSA have high HIV testing coverage through antenatal care (ANC) yet have twice the HIV incidence of nonpregnant women [6]. This can be partially attributable to low testing rates in their male partners. In Kenya during 2013, 88% of pregnant women were tested for HIV compared to 4.5% of their male partners [7,8].

Men who have sex with men (MSM) are an underserved group who should not be overlooked. Despite having an HIV prevalence up to eight times higher than the general population, HIV interventions for MSM in SSA are scarce [9,10]. Numerous policy barriers exist that restrict availability and access to HIV-related services for MSM, including police harassment and criminal laws [11].

Stigma is one potential explanation for low male engagement in the HIV care cascade. HIV-positive persons are often perceived by their community as disabled and incapable of contributing economically to society [12]. Men may be more affected by this stigma as they are traditionally the family “breadwinners.” Poverty and food insecurity, common in SSA, can exacerbate HIV-related stigma as engagement in the labor force is crucial for community survival [12]. Poverty can also directly affect engagement in care as individuals lack resources required to attend facilities. Further barriers to visiting clinics include confidentiality concerns, costs (transport, wait time, and lost wages), inconvenient hours, and the perception that clinics are places for women [13].

Lack of high-quality data on male HIV prevalence and health-seeking behavior can hinder prevention strategies

Accurate HIV prevalence estimates are crucial for designing and evaluating prevention programs. However, HIV surveillance programs such as Demographic and Health Surveys (DHS) are expensive to implement. Instead, much of SSA relies on prevalence estimates extrapolated from ANC data, which exclude men altogether [14]. Countries with DHS tend to have more accurate HIV prevalence estimates. However, measuring male HIV prevalence can be difficult as disproportionately more men decline DHS participation (although nonparticipation is an issue for both sexes). Studies show that DHS often underestimate HIV prevalence, indicating nonparticipation is related to knowledge of HIV status [1517]. An analysis of 12 DHS found that 10 of the 12 surveys underestimated male HIV prevalence, with bias-corrected estimates up to 9% higher than original DHS prevalence estimates [15]. Another study evaluating DHS in Zambia found that the sex gap in HIV prevalence disappeared after correcting for nonparticipation, with prevalence in men increasing from 12% to 21% [16]. Underestimating HIV prevalence can lead to prevention policies that do not adequately address the male HIV burden. Advanced methods to adjust HIV prevalence for nonparticipation including instrumental variables and Heckman-type selection models can generate more accurate estimates [15,17,18]. These methods will become increasingly important as knowledge of HIV status increases in SSA, which can increase the bias in DHS estimates [14]. Additionally, bias correction is one of the few viable options for obtaining accurate HIV prevalence estimates in settings such as the Swaziland HIV Incidence Measurement Survey (SHIMS), which had lower response rates for men (65%) compared to women (81%) despite up to nine repeated home visits to reduce nonparticipation in the survey [19].

Data on HIV prevalence and health-seeking behaviors (voluntary medical male circumcision [VMMC] and ART uptake and adherence) also inform mathematical models that evaluate HIV interventions. A validation study assessing the ability of 10 mathematical models to predict HIV burden in South Africa found that 8 out of 10 models projected declining male HIV prevalence, whereas empirical data showed increasing prevalence; this may be partly because the models assumed equal ART uptake among men and women [20]. Future models should account for sex differences in HIV testing, ART initiation, and retention to more accurately estimate the impact of interventions.

Ascertaining where losses to follow-up occur across the HIV care cascade is also crucial to targeting interventions. However, it is challenging to generate accurate HIV-related mortality estimates since many HIV-positive men never access care. Additionally, clinics often do not track outcomes for persons who have dropped out of care, making it difficult to determine if men have transferred to another facility or stopped treatment [21]. A study conducted in South Africa was able to assess mortality throughout the HIV continuum using a population-based cohort and determining cause of death in all persons, including those not engaged in HIV care [22]. The authors found that the gap between female and male life expectancy doubled from 2003 to 2011 and twice as many women initiated ART than men. Over half (57%) of male HIV mortality in 2011 occurred among individuals who never sought care, highlighting the importance of HIV testing and linkage strategies. However, substantial proportions of men were lost throughout the cascade, including after ART initiation (33%), so interventions to maintain retention are vital; otherwise, increasing HIV testing and linkage could shift the distribution of deaths to later in the cascade instead of preventing them entirely. Improving ART adherence and retention can also reduce the risk of developing and transmitting drug-resistant virus.

Community-based HIV testing and counseling (HTC) strategies are successful at reaching men

Facility-based HTC has achieved limited coverage in men. Studies highlight men’s desire to test outside clinics [23], with some men preferring to test at home [24], while others have concerns about the confidentiality of home testing [25] and consider mobile HTC to be more private [26]. As there is no one-size-fits-all approach, a variety of community-based HTC strategies will likely be needed to achieve high testing coverage (Table 1). Meta-analyses find that community HTC achieves higher population coverage than facility testing [27], with home and mobile HTC increasing coverage in men (mobile having a larger effect than home HTC) [26]. Community HTC reaches more first-time testers, suggesting expanded coverage to persons who may not otherwise undergo facility testing [28]. Additionally, community HTC identifies asymptomatic HIV-positive men at higher cluster of differentiation 4 (CD4) cell counts [28]. This can facilitate earlier linkage to ART, preventing morbidity, mortality, and transmission.

Tab. 1. Community-based HIV HTC interventions to increase male testing and engagement in care.
Community-based HIV HTC interventions to increase male testing and engagement in care.
NGO, nongovernmental organization; RCT, randomized controlled trial; SEARCH, Sustainable East Africa Research on Community Health.

However, community HTC should be tailored to the needs of men to optimize coverage and effectiveness. For example, a home HTC intervention in Botswana reached 85% of women in the target population compared with 50% of men, likely because the intervention was conducted during the workday, so employed men were missed [35]. Similarly, a home HTC trial (largely conducted during weekdays) successfully contacted more women than men in the target population to offer HTC (74% versus 50%). However, HTC acceptance rates among men contacted were similar to the women who were contacted (77%) [33]. Home HTC with flexible hours and multiple follow-up visits has the potential to test more men. Similarly, a randomized controlled trial (RCT) of workplace HTC for men had 53% uptake when testing was offered on-site compared to 19% for off-site testing, underscoring the importance of convenient testing access [36]. Finally, partner notification (notifying sexual partners of newly diagnosed HIV-positive individuals of their potential exposure and offering HTC) reaches more men when using active (provider tracing or contract referral) compared to passive notification (index cases are asked to notify sexual partners and refer them to the clinic). In a partner notification study in Malawi, men represented only 15% of those presenting to the clinic for testing through passive referral compared to 50% of those tested through active tracing, with no increase in adverse events (e.g., intimate partner violence) [30].

Mobile HTC is a promising strategy for reaching men. A large community RCT in Tanzania and Zimbabwe (Project Accept) reported male testing coverage of 44%–53% in sites randomized to mobile testing compared to 4%–9% facility testing coverage in control sites, decreasing the sex gap in testing coverage found at baseline [37]. Integrating HTC into mobile multidisease campaigns has also had success in reaching men [38]. Community health campaigns can achieve rapid HTC coverage in short time frames (e.g., 2 weeks) [39,40]. The Sustainable East Africa Research on Community Health (SEARCH) campaign conducted in Uganda and Kenya provided HTC; men’s health stations (including prostate cancer screening and VMMC information); screening and treatment for diabetes, hypertension, and malaria; and home HTC for persons who did not participate in the campaign (ClinicalTrials.gov: NCT01864603). This hybrid approach tested an impressive 86% of male community residents, with the vast majority testing through the campaigns (80%) [38]. Combining HTC with other health interventions can reduce HIV-related stigma while improving program efficiency. Studies find that men prefer HIV services that are not separate from other health care services [41].

HTC for male partners of pregnant woman is another strategy to expand male testing. Messaging that testing can protect one’s unborn child can motivate men to undergo HTC [42]. Additionally, couples HTC and status disclosure can increase women’s adherence to ART and regimens for prevention of mother-to-child transmission [43]. Interventions to encourage male partners to come to the ANC for couples HTC have had varied success [44]. Home HTC for male partners of pregnant women can overcome barriers of male ANC attendance and achieve high testing coverage. The Home-Based Partner Education and Testing (HOPE) intervention in Kenya found that 87% of male partners had been tested 6 weeks postpartum in the home-testing arm compared to 39% in the ANC arm [45]. HIV self-testing kits are also potentially effective in reaching men. An RCT in Kenya found that distributing HIV self-tests to pregnant and postpartum women achieved 91% testing coverage in male partners within 3 months compared to 51% in the control arm (male invitation for clinic testing). Self-reported couples testing and disclosure was higher in the self-testing (75%) arm compared to the control arm (35%) [46]. Couples-based approaches may increase male testing regardless of female pregnancy status. For example, a six-session couples behavioral intervention in South Africa found higher couples testing in the intervention compared to the control arm (45% versus 12%) [47].

Community-based educational initiatives to reduce stigma, decrease high-risk sexual behavior, increase HIV testing, and challenge gender norms have had some success (Table 2). The SASA! trial was particularly effective: it was associated with an increase in male HIV testing, condom use, and male appreciation for women’s work [48]. Studies show that social networks are important influences on male HIV testing uptake. Men who believe that at least one close friend has tested for HIV have twice the odds of having undergone HIV testing [49]. More research is needed on social interventions to increase testing coverage in men in SSA. Particularly, training peer leaders to encourage HIV testing should be explored in future studies. Additionally, support from men’s primary female partners has been shown to help overcome barriers to ART initiation and promote adherence [50]. Future interventions should evaluate leveraging social support from primary partners to encourage male engagement in care.

Tab. 2. Community-based educational initiatives for HIV prevention.
Community-based educational initiatives for HIV prevention.
aRR, adjusted risk ratio; HSV2, herpes simplex virus 2; IPV, intimate partner violence; SHARE, Safe Homes and Respect for Everyone; STD, sexually transmitted disease.

HIV self-testing is a relatively low-cost strategy that achieves high uptake in men, particularly young men [27,5557]. Self-testing was the preferred option for future HIV testing among men surveyed in Malawi [55]. HIV self-testing can overcome concerns regarding confidentiality of provider-administered HTC and stigma associated with facility testing [55]. However, HIV self-testing is a screening tool and HIV positive results require confirmatory testing. Further research is needed on quality, accuracy, distribution channels, and linkage to care after HIV self-testing.

The literature on HIV testing strategies for MSM in SSA is very limited [10,58,59]. Studies show high HIV positivity combined with a high proportion of first-time testers, highlighting the need for service expansion. Successful testing strategies for MSM are community based (particularly mobile), as many MSM are marginalized without adequate access to conventional health systems [59]. Community HTC for MSM has higher acceptability and greater HIV yield than clinic referral [10]. In addition, HIV self-testing is a potential strategy to reach MSM; it is considered convenient and private [60]. Further, self-testing is useful for groups who benefit from frequent retesting [55].

Community-based facilitated linkage and retention strategies can increase male engagement in HIV care

The success of HTC strategies depends on their ability to link and engage HIV-positive individuals in care. Extra support may be needed to ensure linkage in community-based modalities, as they are conducted outside of health care systems [27]. Community HTC with facilitated linkage (e.g., counsellor follow-up) has achieved higher linkage than HTC without such support [27]. However, facility linkage rates after community HTC remain lower than what is needed for epidemic control [33,61]. Although community HTC reduces barriers to receiving an HIV test, individuals still must travel and wait at a clinic to obtain treatment. Community-based ART initiation is a convenient alternative to facility linkage. An RCT in Malawi found higher ART uptake with optional home ART initiation compared to facility initiation, with no difference in retention at 6 months [57]. Notably, a recent systematic review found no current or planned trials evaluating community-based ART initiation in men in SSA; likewise, there is a lack of interventions for MSM [62].

Similar to ART initiation, retention is improved with streamlined services. Interviews with persons who have dropped out of care find that lack of transportation is the most common reason for dropout, followed by lack of money and work commitments [21]. Distance from clinic has been negatively associated with ART retention [63]. Food insecurity and long wait times are also reported as barriers to ART pickup [50]. Community-based ART delivery (dispensing ART outside health care systems) may overcome these barriers and increase retention. Home, workplace, or mobile ART pickup sites can be particularly convenient for men. An ongoing RCT, Delivery Optimization for Antiretroviral Therapy (DO ART; ClinicalTrials.gov: NCT02929992), is investigating the effectiveness of community ART initiation and delivery on ART uptake, time to initiation, and viral suppression in South Africa and Uganda.

Similarly, the SEARCH hybrid mobile and home HTC campaign achieved high ART linkage in rural East Africa by “collapsing the cascade” or providing immediate universal treatment for all HIV-positive persons. The campaign offered participants ART visits every 3 months with flexible scheduling, viral load counseling, and treatment for other diseases using a stigma-reducing chronic care model. At baseline, fewer men than women were virally suppressed (44% versus 50%, respectively), but this gap decreased after 2 years of follow-up, with little difference in viral suppression by gender (80% of men and 83% of women) [34].

Since men are more likely than women to be lost to follow-up after testing HIV positive, peer support groups can encourage engagement in care. Studies show men can experience more stigma than women after an HIV diagnosis; they can feel that their masculinity is compromised by admitting they are sick and asking for help [64,65]. Fear of losing respect or being perceived as a failure for acquiring HIV is also a barrier [66]. Support groups and peer counselling can be difficult for men as they may be viewed as activities for women. Peer support groups for men should emphasize responsible fatherhood and skills training. Messaging that ART can allow men to regain their health, restore masculinity compromised by HIV, and provide for their families (particularly children) can be powerful motivators for engagement in care [64,65]. Receiving livelihood support (e.g., farm work, nutritional support, and school fee grants) from providers or support groups can motivate men to initiate and adhere to treatment and also restore masculinity by allowing them to provide for their family [65,66]. Livelihood interventions can also reduce the social stigma caused by an HIV diagnosis [67,68]. Additionally, support groups that challenge gender norms and stigma can change attitudes about masculinity and HIV and increase engagement in care [69]. Effective messages will likely vary by men’s age or the intervention setting. Although ART peer support groups have been successful in motivating engagement and retention, many groups are majority (65%–71%) female [7072]. Qualitative research on male engagement and retention on ART is sparse.

Financial incentives can increase HIV testing and ART uptake by (1) providing a near-immediate reward for a health behavior and (2) offsetting costs associated with clinic attendance (travel and missed work) [73]. They can also reduce structural HIV risk factors by alleviating poverty and increasing access to education. A study in South Africa investigating incentivized compared to nonincentivized mobile testing for reaching men found higher HIV prevalence (16% versus 5.5%), more first-time testers (60% versus 42%), and more advanced HIV disease (15% versus 8%) in men accessing incentivized compared to nonincentivized services [74]. Fewer studies have examined the effects of cash transfers later in the HIV care cascade, although two trials are ongoing: Link4Health—a combination approach of accelerated ART initiation, counselling, and financial incentives for linkage and retention in Swaziland (ClinicalTrials.gov: NCT01904994)—and ENGAGE4HEALTH—evaluating accelerated ART initiation, short message service (SMS) reminders, and noncash financial incentives for retention and linkage for both sexes in Mozambique (ClinicalTrials.gov: NCT01930084) [73]. More research is needed on conditional and unconditional cash transfers and lottery systems for increasing male engagement in the care cascade. Additionally, some beneficial health behaviors are known to diminish after the cessation of cash transfers, so studies are needed to evaluate the long-term effects of financial incentives on ART adherence [73].

Linkage to care is challenging for MSM since health care workers in SSA typically have little or no training in addressing their health care needs [75]. Further, MSM report discrimination, harassment, and denial of services [76]. A study from Kenya found that providing health care workers with a web-based 2-day MSM sensitivity training decreased homophobic attitudes and increased knowledge of MSM-related health issues (maintained 3 months postintervention). Encouragingly, the strongest impact was seen in those with the most negative attitudes towards MSM [77]. However, such training is rare, and the health care workers who attended the training reported experiencing secondary stigma from other health care workers who were not trained [75]. Therefore, widespread structural interventions are needed to make a substantial impact on health care workers’ attitudes towards MSM. Further, little is known about ART adherence and clinical outcomes in HIV-positive MSM [75]. One of the few studies evaluating this topic found that ART adherence in Kenya was substantially lower in MSM compared to heterosexual men [78]. However, only one intervention to promote engagement in care and adherence to ART in HIV-positive MSM is currently being conducted in SSA [79]. Successful strategies will require multiple approaches including pre-exposure prophylaxis (PrEP), treatment as prevention, and behavioral risk reduction [80].

Conclusions

More work remains to be done to reduce the gender disparity in HIV testing, linkage, and retention in care in SSA. Multicomponent interventions are needed to reduce stigma and address issues of masculinity and health-seeking behavior. Additionally, leveraging social support and providing poverty alleviation can change norms around testing and treatment while addressing other factors contributing to low engagement in care (e.g., food insecurity and poverty). Community-based testing, and potentially community-based ART initiation and medication resupply, can overcome barriers associated with clinics and strengthen male engagement across the care cascade. A variety of community HTC modalities can be implemented simultaneously to achieve maximum coverage. Targeted messaging to motivate men (e.g., protection of one’s sexual partner and future children, and restoration of health through ART) can increase testing uptake and linkage [81]. Community-based “test and treat” strategies may reduce loss to follow-up associated with clinic-based ART initiation. Further, an integrated approach combining testing and treatment with other HIV interventions (VMMC and PrEP) and chronic disease screening can increase intervention program efficiency while reducing stigma. Further research is needed on community-based interventions that motivate male engagement in care, particularly later in the cascade (i.e., ART initiation and retention).


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