Screening for HIV and linkage to care in adolescents: insights from a systematic review of recent interventions in high- versus low- and middle-income settings

Young men's barriers to and facilitators of utilising HIV-testing services in South Africa

Background

In South Africa, men are less likely than women to use HIV-testing services (HTS). They are also unlikely to start and adhere to antiretroviral therapy until the virus has progressed to advanced AIDS stages.

Objectives

To explore young men's barriers to and facilitators of accessing and utilising HTS at the rural Driefontein and peri-urban Steadville Township in Ladysmith, KwaZulu-Natal (KZN) province, and to develop a comprehensive framework of care for young men to encourage and support them to utilise HTS at primary healthcare facilities.

Method

This exploratory-descriptive qualitative study entailed using semi-structured interviews conducted via WhatsApp and landline audio calls with 17 young men between 18 years and 30 years of age in Steadville and Driefontein communities in KZN in September 2021. Participants were purposively and conveniently sampled, and the data were analysed thematically.

Results

All participants were unmarried isiZulu African men experienced with HTS in the last 4 years. Fear of an HIV-positive test result, limited HTS knowledge, and stigma around HIV and AIDS were challenges linked to HTS utilisation. Unsafe sexual encounters, voluntary medical male circumcision, early virus-detection, having a significant other living with HIV, and HIV-status curiosity encouraged young men to utilise HTS.

Conclusion

Various barriers and facilitators to HTS utilisation, are key for consideration when deriving contextual interventions acceptable to young men as efforts to raise awareness and attract and retain men in care.

Policies and Practices Facilitating Access to and Uptake of HIV Testing Services among Adolescents in Sub-Sahara Africa: A Narrative Review

PURPOSE OF REVIEW

Expanding access to HIV testing services and linking newly diagnosed positive adolescents to antiretroviral therapy is critical to epidemic control. However, testing coverage and treatment initiation rates continue to lag behind adult counterparts. This article synthesizes evidence on facilitative policies and service delivery practices focused on adolescents to inform programming.

RECENT FINDINGS

Our narrative review found that national policies are growing more adolescent-inclusive but barriers around the age of consent, waiver frameworks and dissemination constrain translate into practice. Facility-based provider-initiated testing through integrated sexual health services and dedicated youth centres demonstrates uptake effectiveness if confidentiality and youth-friendly adaptations are assured. Supportive policies, youth-responsive adaptations across testing models and strengthening age-disaggregated monitoring are vital to improving adolescents' engagement across the HIV testing and treatment cascade. Further implementation research is imperative to expand the reach of adolescent HIV testing in sub-Saharan Africa.

Characterizing models of adolescent and youth-friendly health services in sub-Saharan Africa: a scoping review

This scoping review provides an up-to-date overview of the evidence on adolescent and youth-friendly health services (AYFHS) in sub-Saharan African countries. We conducted a search of four databases and grey literature sources to identify English language publications from January 1, 2005, to December 14th, 2022. The review synthesized evidence on the models and characteristics of AYFHS, the application of World Health Organization (WHO) standards, and whether AYFHS have improved young people's health outcomes. In total, 77 sources were included in the review, representing 47 AYFHS initiatives spanning 19 countries, and three multi-country reports. Most commonly, AYFHS were delivered in public health facilities and focused on sexual and reproductive health, with limited application of WHO standards. Some evidence suggested that AYFHS increased young people's health service utilization and contraceptives uptake. There is a clear need to strengthen and develop innovative and multi-pronged approaches to delivering and evaluating AYFHS in this region.

Linkage to HIV Medical Care and Social Determinants of Health Among Adults With Diagnosed HIV Infection in 41 States and the District of Columbia, 2017

OBJECTIVES

To reduce the number of new HIV infections and improve HIV health care outcomes, the social conditions in which people live and work should be assessed. The objective of this study was to describe linkage to HIV medical care by selected demographic characteristics and social determinants of health (SDH) among US adults with HIV at the county level.

METHODS

We used National HIV Surveillance System data from 42 US jurisdictions and data from the American Community Survey to describe differences in linkage to HIV medical care among adults aged ≥18 with HIV infection diagnosed in 2017. We categorized SDH variables into higher or lower levels of poverty (where <13% or ≥13% of the population lived below the federal poverty level), education (where <13% or ≥13% of the population had

RESULTS

Of 33 204 adults with HIV infection diagnosed in 2017, 78.4% were linked to HIV medical care ≤1 month after diagnosis. Overall, rates of linkage to care were significantly lower among men and women living in counties with higher versus lower poverty (PR = 0.96; 95% CI, 0.94-0.97), with lower versus higher health insurance coverage (PR = 0.93; 95% CI, 0.92-0.94), and with lower versus higher education levels (PR = 0.97; 95% CI, 0.96-0.98).

CONCLUSIONS

Increasing health insurance coverage and addressing economic and educational disparities would likely lead to better HIV care outcomes in these areas.

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Key Words

• HIV health care outcomes
• health disparity
• human immunodeficiency virus
• linkage to HIV medical care
• social determinants of health

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MESH Headings

• Adult
• District of Columbia
• Female
• HIV Infections/diagnosis
• HIV Infections/epidemiology
• HIV Infections/therapy
• Humans
• Insurance, Health
• Male
• Poverty
• Social Determinants of Health
• United States/epidemiology

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Affiliation(s)

Myrline Gillot Oak Ridge Institute for Science and Education, Oak Ridge, TN, USA
Zanetta Gant Division of HIV/AIDS Prevention, National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention, Centers for Disease Control and Prevention, Atlanta, GA, USA
Xiaohong Hu Division of HIV/AIDS Prevention, National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention, Centers for Disease Control and Prevention, Atlanta, GA, USA
Anna Satcher Johnson Division of HIV/AIDS Prevention, National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention, Centers for Disease Control and Prevention, Atlanta, GA, USA

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Sexually transmitted infection prevention behaviours: health impact, prevalence, correlates, and interventions

Sexually transmitted infections (STIs) remain a major public health threat, disproportionately affecting young people, and men who have sex with men. In this narrative review of the current state of behavioural science research on STI prevention, we consider the definition, health impacts, correlates and determinants, and interventions to promote STI prevention behaviour. Research on STI prevention behaviour has extended from a focus on abstinence, partner reduction and condom use, to also include novel preventive behaviours, notably treatment-as-prevention, pre-exposure prophylaxis (i.e., the preventive use of medicines by uninfected people), and vaccination for some STIs. Social-cognitive factors specified by, for instance the theory of planned behaviour, are critical proximal determinants of STI prevention behaviours, and related interventions can effectively promote STI prevention behaviours. Social-ecological perspectives highlight that individual-level determinants are embedded in more distal environmental influences, with social stigma especially affecting STI prevention behaviours and requiring effective intervention. Further to providing a major domain of application, STI prevention also poses critical challenges and opportunities for health psychology theory and research. We identify a need for health behaviour theory that addresses the processes linking multiple levels of influence on behaviour and provides practical guidance for multi-level behaviour change interventions adapted to specific contexts.

HIV Response Interventions that Integrate HIV Molecular Cluster and Social Network Analysis: A Systematic Review

Due to improved efficiency and reduced cost of viral sequencing, molecular cluster analysis can be feasibly utilized alongside existing human immunodeficiency virus (HIV) prevention strategies. The goal of this paper is to elucidate how HIV molecular cluster and social network analyses are being integrated to implement HIV response interventions. We searched PubMed, Scopus, PsycINFO, and Cochrane Library databases for studies incorporating both HIV molecular cluster and social network data. We identified 32 articles that combined analyses of HIV molecular sequences and social or sexual networks. All studies were descriptive. Six studies described network interventions informed by molecular and social data but did not fully evaluate their efficacy. There is no current standard for incorporating molecular and social network analyses to inform interventions or data demonstrating its utility. More research must be conducted to delineate benefits and best practices for leveraging molecular data for network-based interventions.

Testing, Inequities and Vulnerability of Adolescents to Sexually Transmitted Infections

Sexually transmitted infections (STIs) should form part of the comprehensive healthcare agenda for adolescents and young people (A&Y) and testing plays a strategic role in STI prevention. However, little attention has been paid to the social and programmatic obstacles to this practice among A&Y. The aim of this study is to describe the prevalence of testing for syphilis and HIV reported by a group of A&Y, analyzing its relationship with variables potentially indicative of inequities related to vulnerability to STIs. This was a cross-sectional survey applied to students at public high schools in three cities in the state of São Paulo, Brazil. The responses of 369 young people who reported having started sexual life were analyzed. The analysis included description of the frequencies of demographic and socioeconomic variables and their associations with testing for syphilis and HIV through the chi-square test. The concentration index (CI) was also calculated, with construction of the respective concentration curve for the associated variables. Positive associations were found between occurrence of testing and living in homes with up to three inhabitants, living in a marital situation with a regular or committed partnership, previous use of primary care services and previous use of hospitals or emergency services. The concentration curve for testing STIs showed significant contributions from the associated variables. The findings indicated that situations of inequity need to be addressed in order to reduce A&Y's vulnerability to STIs.

Estimating HIV incidence, prevalence, and percent of undiagnosed infections in Taiwan using CD4 data

BACKGROUND/PURPOSE

Estimation of the human immunodeficiency virus (HIV) epidemic trend and percent of undiagnosed infections is an important measure for the assessment of HIV control programs. In this study, we aimed to investigate and estimate the HIV incidence, HIV prevalence, and percent of undiagnosed HIV infections in Taiwan using the CD4 depletion model.

METHODS

Data on newly reported HIV diagnoses during 2012-2019 were obtained from the National HIV/AIDS reporting and case management system. We used an Asian-adjusted CD4 depletion model to determine diagnosis delays and then used this distribution and HIV case surveillance data to estimate the incidence, prevalence and percent of undiagnosed infections.

RESULTS

The estimated HIV incidence rate decreased after 2012, from 9.4 per 100,000 people (95% confidence interval [CI]: 8.7 to 10.2) to 7.1 per 100,000 people (95% CI: 5.7 to 8.5) in 2019. The prevalence rate increased from 111 per 100,000 people (95% CI: 107 to 116) in 2012 to 158 per 100,000 people (95% CI: 146 to 169) in 2019, whereas the undiagnosed rate decreased from 21.5% (95% CI: 18.2%-24.8%) in 2012 to 12.1% (95% CI: 8.9%-15.2%) in 2019. In addition, the undiagnosed percentage in the population of men who have sex with men (MSM) also decreased from 28.8% to 13.6% during this period.

CONCLUSION

We found decreases in the HIV incidence and undiagnosed percentage from 2012 to 2019 in Taiwan. These findings highlight the importance of intensified HIV testing efforts to achieve the global 95-95-95 goals by 2030.

Venue-Based HIV Testing at Sex Work Hotspots to Reach Adolescent Girls and Young Women Living With HIV: A Cross-sectional Study in Mombasa, Kenya

BACKGROUND

We estimated the potential number of newly diagnosed HIV infections among adolescent girls and young women (AGYW) using a venue-based approach to HIV testing at sex work hotspots.

METHODS

We used hotspot enumeration and cross-sectional biobehavioral survey data from the 2015 Transition Study of AGYW aged 14-24 years who frequented hotspots in Mombasa, Kenya. We described the HIV cascade among young females who sell sex (YFSS) (N = 408) versus those young females who do not sell sex (YFNS) (N = 891) and triangulated the potential (100% test acceptance and accuracy) and feasible (accounting for test acceptance and sensitivity) number of AGYW that could be newly diagnosed through hotspot-based HIV rapid testing in Mombasa. We identified the profile of AGYW with an HIV in the past year using generalized linear mixed regression models.

RESULTS

N = 37/365 (10.1%) YFSS and N = 30/828 (3.6%) YFNS were living with HIV, of whom 27.0% (N = 10/37) and 30.0% (N = 9/30) were diagnosed and aware (P = 0.79). Rapid test acceptance was 89.3%, and sensitivity was 80.4%. There were an estimated 15,635 (range: 12,172-19,097) AGYW at hotspots. The potential and feasible number of new diagnosis was 627 (310-1081), and 450 (223-776), respectively. Thus, hotspot-based testing could feasibly reduce the undiagnosed fraction from 71.6% to 20.2%. The profile of AGYW who recently tested was similar among YFSS and YFNS. YFSS were 2-fold more likely to report a recent HIV test after adjusting for other determinants [odds ratio (95% confidence interval): 2.2 (1.5 to 3.1)].

CONCLUSION

Reaching AGYW through hotspot-based HIV testing could fill gaps left by traditional, clinic-based HIV testing services.

Impact of Universal Antiretroviral Treatment Eligibility on Rapid Treatment Initiation Among Young Adolescents with Human Immunodeficiency Virus in Sub-Saharan Africa

BACKGROUND

Young adolescents with perinatally acquired human immunodeficiency virus (HIV) are at risk for poor care outcomes. We examined whether universal antiretroviral treatment (ART) eligibility policies (Treat All) improved rapid ART initiation after care enrollment among 10-14-year-olds in 7 sub-Saharan African countries.

METHODS

Regression discontinuity analysis and data for 6912 patients aged 10-14-years were used to estimate changes in rapid ART initiation (within 30 days of care enrollment) after adoption of Treat All policies in 2 groups of countries: Uganda and Zambia (policy adopted in 2013) and Burundi, Democratic Republic of the Congo, Kenya, Malawi, and Rwanda (policy adopted in 2016).

RESULTS

There were immediate increases in rapid ART initiation among young adolescents after national adoption of Treat All. Increases were greater in countries adopting the policy in 2016 than in those adopting it in 2013: 23.4 percentage points (pp) (95% confidence interval, 13.9-32.8) versus 11.2pp (2.5-19.9). However, the rate of increase in rapid ART initiation among 10-14-year-olds rose appreciably in countries with earlier treatment expansions, from 1.5pp per year before Treat All to 7.7pp per year afterward.

CONCLUSIONS

Universal ART eligibility has increased rapid treatment initiation among young adolescents enrolling in HIV care. Further research should assess their retention in care and viral suppression under Treat All.

Family Support for Adolescent Girls and Young Women Living With HIV in Zambia: Benefits, Challenges, and Recommendations for Intervention Development

ABSTRACT

Lack of family involvement is barrier to antiretroviral therapy adherence among adolescent girls and young women (AGYW). This study assessed family support for AGYW's engagement along the HIV care continuum to inform the design of a family-focused intervention in Lusaka, Zambia. We conducted 16 in-depth interviews and four focus group discussions with 40 AGYW living with HIV. Three strategies were identified to strengthen family support. First, emotional and instrumental support are highly valued by AGYW and should be further developed or reinforced. Second, AGYW wanted more informational support and open discussion of HIV from family, and an intervention should aim to enhance these types of support. Third, existing appraisal support reinforced anticipated stigma among AGYW and discouraged disclosure, yet participants wished for more interactions with peers living with HIV. Appraisal support should therefore be reframed to help AGYW decide to whom they should disclose and how to do so safely.

Exploring perceptions of low risk behaviour and drivers to test for HIV among South African youth

Human Immunodeficiency Virus (HIV) prevalence among South African youth is high, yet HIV testing remains suboptimal. We explored how perceptions of HIV risk and behaviours informed decisions to test for HIV. This study was conducted from April 2018 to March 2019 in Ekurhuleni district, Gauteng Province with males and females aged between 15–24 years. Twenty-five youth with unknown HIV status participated in in-depth interviews (IDIs); while four focus group discussions (FGDs) were conducted with those that previously tested for HIV. Probes used in the guides included types of incentives that youth would value when testing for HIV or receiving treatment; barriers and motivators to HIV testing; enablers and challenges to using cellphone technology and preferences on type of social media that could be used to create awareness about HIV testing services. IDIs and FGDs were audio-recorded, transcribed, and translated. QSR NVIVO 10 was used for the analysis. The majority of the youth perceived that their risk of HIV infection was low due to factors such as being young, lacking physical signs of HIV, being sexually inactive and parents not being HIV positive. However, youth identified high risk behaviours such as unprotected sex, multiple sexual partners, excessive drinking of alcohol, being victims of sexual abuse, road accidents and violent behaviour as increasing their vulnerability to HIV. Most youth highlighted cues to action that would motivate them to test for HIV such as support of parents, receiving incentives, improved confidentiality during HIV testing and receiving information about HIV via social media (Facebook, Twitter and Whatsapp). Despite perceptions of low risk to HIV, youth remain vulnerable to HIV. Disseminating HIV information via digital platforms; giving youth options to choose between testing locations that they consider to be private; providing incentives and equipping parents/guardians to encourage youth to test could optimise HIV testing.

Youth Preferences for HIV Testing in South Africa: Findings from the Youth Action for Health (YA4H) Study Using a Discrete Choice Experiment

We conducted a discrete choice experiment (DCE) and quantified preferences for HIV testing among South African youth (Nov 2018 to Mar 2019). Six attributes and levels were identified through qualitative methods: source of HIV information; incentive amount and type; social support; testing method; and location. Each participant chose one of two options that comprised six attributes across 18 questions. Conditional logistic regression estimated the degree of preference [β]. Of 130 participants, median age was 21 years (interquartile range 19-23 years), majority female (58%), and 85% previously tested for HIV. Testing alone over accompanied by a friend (β = 0.22 vs. - 0.35; p < 0.01); SMS text over paper brochures (β = 0.13 vs. - 0.10; p < 0.01); higher incentive values (R50) over no incentive (β = 0.09 vs. - 0.07; p = 0.01); and food vouchers over cash (β = 0.06 vs. β =  - 0.08; p = 0.01) were preferred. Testing at a clinic or home and family encouragement were important. Tailoring HTS to youth preferences may increase HIV testing.

Population uptake of HIV testing, treatment, viral suppression, and male circumcision following a community-based intervention in Botswana (Ya Tsie/BCPP): a cluster-randomised trial

BACKGROUND

In settings with high HIV prevalence and treatment coverage, such as Botswana, it is unknown whether uptake of HIV prevention and treatment interventions can be increased further. We sought to determine whether a community-based intervention to identify and rapidly treat people living with HIV, and support male circumcision could increase population levels of HIV diagnosis, treatment, viral suppression, and male circumcision in Botswana.

METHODS

The Ya Tsie Botswana Combination Prevention Project study was a pair-matched cluster-randomised trial done in 30 communities across Botswana done from Oct 30, 2013, to June 30, 2018. 15 communities were randomly assigned to receive HIV prevention and treatment interventions, including enhanced HIV testing, earlier antiretroviral therapy (ART), and strengthened male circumcision services, and 15 received standard of care. The first primary endpoint of HIV incidence has already been reported. In this Article, we report findings for the second primary endpoint of population uptake of HIV prevention services, as measured by proportion of people known to be HIV-positive or tested HIV-negative in the preceding 12 months; proportion of people living with HIV diagnosed and on ART; proportion of people living with HIV on ART with viral suppression; and proportion of HIV-negative men circumcised. A longitudinal cohort of residents aged 16-64 years from a random, approximately 20% sample of households across the 15 communities was enrolled to assess baseline uptake of study outcomes; we also administered an end-of-study survey to all residents not previously enrolled in the longitudinal cohort to provide study end coverage estimates. Differences in intervention uptake over time by randomisation group were tested via paired Student's t test. The study has been completed and is registered with ClinicalTrials.gov (NCT01965470).

FINDINGS

In the six communities participating in the end-of-study survey, 2625 residents (n=1304 from standard-of-care communities, n=1321 from intervention communities) were enrolled into the 20% longitudinal cohort at baseline from Oct 30, 2013, to Nov 24, 2015. In the same communities, 10 791 (86%) of 12 489 eligible enumerated residents not previously enrolled in the longitudinal cohort participated in the end-of-study survey from March 30, 2017, to Feb 25, 2018 (5896 in intervention and 4895 in standard-of-care communities). At study end, in intervention communities, 1228 people living with HIV (91% of 1353) were on ART; 1166 people living with HIV (88% of 1321 with available viral load) were virally suppressed, and 673 HIV-negative men (40% of 1673) were circumcised in intervention communities. After accounting for baseline differences, at study end the proportion of people living with HIV who were diagnosed was significantly higher in intervention communities (absolute increase of 9% to 93%) compared with standard-of-care communities (absolute increase of 2% to 88%; prevalence ratio [PR] 1·08 [95% CI 1·02-1·14], p=0·032). Population levels of ART, viral suppression, and male circumcision increased from baseline in both groups, with greater increases in intervention communities (ART PR 1·12 [95% CI 1·07-1·17], p=0·018; viral suppression 1·13 [1·09-1·17], p=0·017; male circumcision 1·26 [1·17-1·35], p=0·029).

INTERPRETATION

It is possible to achieve very high population levels of HIV testing and treatment in a high-prevalence setting. Maintaining these coverage levels over the next decade could substantially reduce HIV transmission and potentially eliminate the epidemic in these areas.

FUNDING

US President's Emergency Plan for AIDS Relief through the Centers for Disease Control and Prevention.

"The right place and the right time": A qualitative study of the decision-making process of self-initiated HIV testing among young adults

Young adults continue to have very low rates of human immunodeficiency virus (HIV) testing, which contribute to transmission, late diagnoses, and poor health outcomes. The access and uptake of HIV testing among young adults can be improved by promoting self-initiated testing (i.e., testing without the immediate recommendation of a clinician). Little is known, however, about how young adults self-initiate HIV testing. The purpose of this study was to explore the decision-making process of young adults who self-initiated HIV testing. A qualitative descriptive study was conducted with 30 young adults aged 18-24 years. The findings from this study describe how young adults acknowledge their vulnerability to HIV infection and navigate the process of deciding to self-initiate testing. Some subcategories include Self-Convincing, Conversation Prompts, and The Right Place and Right Time. Findings from this study are pivotal for subsequent studies to further understand self-initiated HIV testing among young adults and design targeted interventions that will improve testing uptake.

The gendered experience of HIV testing: factors associated with prior testing differ among men and women in rural Tanzania

HIV testing remains below UNAIDS 90–90–90 goals in sub-Saharan Africa. The aim of this study was to understand gender-specific factors related to HIV testing in Kisarawe, Tanzania. Informed by Social Action Theory, we analyzed cross-sectional data from a population-based random sample using bivariate and multivariate logistic regression to identify the contextual, behavioral, and interpersonal factors associated with prior HIV testing – specifically, any prior testing and testing within the past year. Of 644 participants, 63.1% of men and 85.5% of women reported ever testing for HIV. Younger men and women (aged 18–25 years) had significantly lower odds of prior HIV testing compared with older participants. For men, low levels of anticipated stigma and having ever talked about HIV were both positively associated with any prior testing. Men who knew if a sexual partner had received an HIV test had almost three times the odds of receiving a recent HIV test compared to men with no knowledge of their partners’ testing status (aOR = 2.96, 95% CI: 1.22–7.17, p = 0.01). For women, knowing someone who is HIV-positive was associated with increased odds of any prior testing (aOR = 2.74, 95% CI: 1.24–6.07, p = 0.01). Gender-specific, proactive interventions are needed to increase testing uptake, especially for young people and men.