Evaluation of community-based HIV self-testing delivery strategies on reducing undiagnosed HIV infection, and improving linkage to prevention and treatment services, among men who have sex with men in Kenya: a programme science study protocol

Assessing awareness and use of HIV self-testing kits after the introduction of a community-based HIV self-testing programme among men who have sex with men in Kenya

Men who have sex with men (MSM) bear a disproportionate burden of new HIV infections in Kenya, while experiencing discrimination, leading to suboptimal levels of HIV care. HIV self-testing (HIVST) is a tool to increase HIV screening and earlier diagnosis; however, questions remain regarding how best to scale-up HIVST to MSM in Kenya. The main objective of this study was to examine changes in knowledge and use of HIVST after implementation of a community-led HIVST project. Participants were MSM recruited from Kisumu, Mombasa, and Kiambu counties. Data were collected from two rounds (Round 1: 2019; Round 2: 2020) of serial cross-sectional integrated biological and behavioural assessments (IBBA), pre-, and post-project implementation. Two main outcomes were measured: 1) whether the respondent had ever heard of HIVST; and 2) whether they had ever used HIVST kits. Changes in outcomes between IBBA rounds were examined using modified multivariable Poisson regression models; adjusted prevalence ratios (aPR) and 95% confidence intervals (95% CI) are reported. A total of 2,328 respondents were included in main analyses. The proportion of respondents who had heard of HIVST increased from 75% in Round 1 to 94% in Round 2 (aPR: 1.2, 95% CI: 1.2-1.3), while those reporting using an HIVST kit increased from 20% to 53% (aPR: 2.3, 95% CI: 2.0-2.6). Higher levels of education and HIV programme awareness were associated with both outcomes. Awareness and use of HIVST kits increased after implementation of a community-led HIVST implementation project, demonstrating the importance of integration with existing community groups.

Highlighting and addressing barriers to widespread adaptation of HIV self-testing in the United States

INTRODUCTION

HIV self-testing (HIVST), whereby an individual performs and interprets their own rapid screening test at home, is another tool to increase the proportion of at-risk individuals who know their status. Globally, HIVST has rapidly been adopted through global partnerships to ensure equitable access to tests in low- and middle-income countries (LMIC).

AREA COVERED

This review discusses the regulatory burdens of HIV self-testing within the United States while examining the use of HIV self-tests on a global scale. While the United States only has one approved HIV self-test, numerous tests have been prequalified by the WHO.

EXPERT OPINION

Despite the US Food and Drug Administration (FDA) clearance of the first and only self-test in 2012, there have been no other tests that have undergone FDA consideration due to regulatory barriers. This, in turn, has stifled market competition. Despite existing evidence that such programs are an innovative approach to testing hesitant or hard-to-reach populations, high individual test cost and bulky packaging make large-scale, mail-out, and HIV self-testing programs expensive. COVID-19 pandemic has accelerated the public demand for self-testing - HIV self-test programs should capitalize on this to increase the proportion of at-risk people who know their status and are linked to care to contribute to ending the HIV epidemic.

Evaluation of factors associated with HIV self-testing Acceptability and Uptake among the MSM community in Nairobi, Kenya: A cross sectional study

BACKGROUND

Human Immunodeficiency Virus self-test (HIVST) refers to a process where a person collects his or her own specimen (blood or oral), performs a test and interprets the results. The interpretation of results can either be done in private or through support of a trusted partner. Self-test should be seen as screening and confirmatory tests are typically strongly encouraged.

STUDY OBJECTIVE

To determine facilitating factors for HIVST acceptability and uptake among men who have sex with men (MSM).

METHODS

A cross-sectional exploratory study design, targeting MSM in Nairobi was used. Adult men (aged 18-60 years) who reported to be actively engaging in anal or oral sex with men were eligible for the study. Purposive sampling was used to identify the sites where data was collected, snowballing technique was then employed to reach the respondents. Data was collected between July 2018 and June 2019. A total of 391 MSM respondent were recruited of whom 345 MSM completed the questionnaires. The missing data was handled through the listwise approach that omits those cases with the missing data and analyze the remaining data. We also excluded responses with inconsistencies in all confirmatory questions in the questionnaire.

RESULTS

Two-thirds (64.0%) of the participants were aged 18-24 years with 13.4% being married to women and 40.2% having tertiary level of education. Majority, 72.7% were unemployed and two-thirds (64.0%) of participants were young (18-24 years) and self reported as male sex workers (58.8). There were significant associations between willingness to undertake HIV self-tests and frequency of HIV testing as well as with previous knowledge about self-testing. Habitual HIV testers were more likely to have used the HIVST kit than the non-habitual testers. Willingness to undertake confirmatory test within one month of self-testing was associated with acceptability of HIVST. Most of the MSM preferred blood sample self-test kits as compared to oral self-test kits, believing that blood test will be more accurate than oral self-test. Other factors associated with HIVST included consistent use of protection regardless of HIV status, preference of "treatment buddies". High costs of the self-test kits and inadequate knowledge on the use of HIV self-test kits were the main hindrances to HIVST uptake.

CONCLUSIONS

This study has showed that age, habitual testing, self-care/partner care, as well as confirmatory testing and immediate introduction into care if found sero-positive were associated with the use of HIVST kit. This study contributes to the pool of knowledge of the characteristics of MSM that would adopt and embrace HIVST, and demonstrates that these MSM are self and partner care aware and conscious. The challenge however remains on how to encourage those that are not self/partner care aware to embrace HIV testing and particularly HIVST as routine practices. Future studies may need to explore potential motivators to self-testing among the young, elder MSM generations and the MSM with higher economic status in Kenya.

HIV self-testing for men who have sex with men in Sweden. A cross-sectional study concerning interest to use HIV self-tests

Background

HIV self-testing (HIVST) has been found to have high acceptability among men who have sex with men (MSM) internationally and might contribute to increase testing frequencies, but many countries, including Sweden, lack policies for using HIVST.

Objective

To examine interest to use and willingness to pay for HIVST, and associated factors, among MSM attending HIV testing venues in Sweden.

Method

This cross-sectional study analyzed data from a self-administered survey, consisting of 33 questions, collected at six HIV testing venues in Sweden in 2018. The sample consisted of sexually active men who have sex with men, aged ≥ 18 years, and not diagnosed with HIV. Data were analyzed descriptively and by univariable and multivariable logistic regression.

Result

Among 663 participants (median age 33 years), 436 respondents (65.8%) expressed interest to use HIVST. Among those interested, less than half, 205 (47.0%), were willing to pay for HIVST. Being interested in HIVST was found to be negatively associated with being in the 55 years or older age group (AOR 0.31, CI 0.14–0.71), and having had syphilis, rectal chlamydia, or rectal gonorrhea in the preceding 12 months (AOR 0.56, CI 0.32–0.99). In the sample of MSM interested in HIVST, willingness to pay was positively associated with being in the age groups 35–44 years (AOR 2.94, CI 1.40–6.21), 45–54 years (AOR 2.82, CI 1.16–6.90), and 55 years or above (AOR 3.90, CI 1.19–12.81), and negatively associated with being single (AOR 0.56, CI 0.36–0.88).

Conclusion

This study found high interest for HIVST in a sample of MSM in Sweden. However, HIVST offered at a cost is likely to negatively affect uptake among MSM broadly, compared with free availability.

Implementation strategies to promote linkage to care for key populations after HIV self-testing: a scoping review

Background

In human immunodeficiency virus (HIV) care, key populations are sex workers, people who inject drugs, prisoners, transgender people, and men who have sex with men (MSM), who are at high risk and burden of HIV infection but face barriers to HIV prevention, treatment, and health services. HIV self-testing (HIVST) is effective in scaling up HIV testing uptake among key populations due to its cost-effective, confidential, and convenient feature. However, lacking linkage to care support remains a key challenge. This scoping synthesised the global evidence regarding implementing strategies to promote linkage to care for key populations after HIVST.

Methods

This scoping review was conducted according to the Joanna Briggs Institute Manual for Evidence Synthesis. A data search was conducted on September 1, 2021. The searched databases were PubMed, Embase, EBSCOhost, Cochrane Library, Wan Fang Data (Chinese), China National Knowledge Infrastructure (Chinese), and Japan Medical Abstracts Society (Japanese).

Results

Twenty studies from 2011 records met the eligibility criteria and were included for review. The study populations were MSM (9), mixed high-risk populations (7), female sex workers (3), and transgender youth (1). Implementation strategies to promote linkage to care for key populations after HIVST were classified into seven categories: 1) HIVST kits with linkage-to-care information, 2) web-based or mobile app-guided HIVST, 3) remote HIVST counselling, 4) intensive follow-up, 5) HIVST promotion through social media and key opinion leaders, 6) community engagement in HIVST and 7) financial incentive. The digital-supported intervention mainly targeted MSM in high-income settings, and the community-based approach and financial incentive strategies were mainly implemented in low and middle-income settings. Comparison of linkage outcomes between studies is problematic due to mixed interpretation and measurement of linkage to care after HIVST.

Conclusions

Implementation strategies to promote linkage to care for key populations are diverse and should be incorporated in different settings and backgrounds. Innovative digital-supported HIVST research for female sex workers and high-risk populations in low and middle-income settings is warranted. A standardised definition of linkage to care following HIVST and a unified measurement of linkage outcomes should be developed and applied in future research.

Understanding socio-sexual networks: critical consideration for HIVST intervention planning among men who have sex with men in Kenya

BACKGROUND

HIV self-testing (HIVST) has emerged as a way of reaching individuals who may be less likely to access testing, including men who have sex with men (MSM). Understanding the social networks of MSM is key to tailoring interventions, such as HIVST, for particular locations.

METHODS

We undertook a socio-sexual network study to characterize and identify patterns of connection among MSM and inform an HIVST intervention in three sites in Kenya. Community researchers in each site selected eight seeds to complete a demographic form and network surveys for 15 each of their sexual and social network members. Seeds recruited three respondents, including two regular service users and one MSM who was "unreached" by the program, who then each identified three respondents, resulting with data on 290 individuals.

RESULTS

Findings illustrate the interconnectedness of community-based organization (CBO) members and non-members. In networks where a majority of members had a CBO membership, members had better contacts with programs and were more likely to have accessed health services. Larger networks had more HIV testing and seeds with frequent testing had a positive influence on their network members also being tested frequently. HIVST was tried in very few networks. Almost all network members were willing to use HIVST.

CONCLUSION

Willingness to use HIVST was nearly universal and points to the importance of networks for reaching individuals not enrolled in programs. Network analysis can help in understanding which type of networks had higher testing and how network-based approaches can be useful to promote HIVST in certain contexts.

Remaking the Technosubject: Kenyan Men Contextualizing HIV Self-Testing Technologies

The Kenyan government offers free HIV self-testing kits to men who have sex with men. The value of self-testing is based on the imaginary of an autonomous technosubject empowered to independently control testing services, thereby "freed," through technology, from the social conditions that might inhibit health services utilization. Following a community-centered collaborative approach, community researchers interviewed their peers who examined and reacted to the technology. Participants reframed the technosubject as intertwined with the social world and the testing kit itself as an object that exerts agency and possesses affective potential. Attending to these socio-material relationalities offers insights into program planning.

What has comprehensive HIV/AIDS knowledge got to do with HIV testing among men in Kenya and Mozambique? Evidence from Demographic and Health Surveys

People living with undiagnosed HIV are big contributors to the transmission of the virus. Although measures have been made to scale up HIV prevention and voluntary counselling and testing in sub-Saharan Africa, testing coverage remains low in many sub-Saharan African countries, including Mozambique and Kenya, where most people live with HIV/AIDS. Studies have shown that, in most countries in sub-Saharan Africa, men are less likely to test for HIV compared with women. This study examined the relationship between comprehensive HIV/AIDS knowledge and HIV testing among men in Kenya and Mozambique. Data were from the men's re-code file of the Demographic and Health Surveys of Mozambique and Kenya. Binary logistic regression models were generated and the results presented as crude odds ratios (cOR) and adjusted odds ratios (aOR). The prevalences of HIV testing in Kenya and Mozambique were 80.1% and 46.7%, respectively. Men in Mozambique who had comprehensive HIV/AIDS knowledge (aOR=1.26, CI: 1.07-1.47) were more likely to test for HIV compared with their counterparts who had no comprehensive HIV/AIDS knowledge. In Kenya, men who had comprehensive HIV/AIDS knowledge (aOR=1.23, CI: 1.09-1.39) were more likely to test for HIV compared with their counterparts who had no comprehensive HIV/AIDS knowledge. This study found a statistically strong significant association between comprehensive HIV/AIDS knowledge and HIV testing among men in Kenya and Mozambique. To improve HIV testing rate among men, it is important that interventions are geared towards improving men's comprehensive HIV/AIDS knowledge, perhaps by expanding HIV/AIDS education programmes and campaigns. This could improve HIV testing rates and ensure the realization of the global HIV/AIDS target of 95-95-95 by the year 2030.

Improving HIV Self-Testing Social Network Interventions: The Role of Sexual Behavior Disclosure Among Chinese Men Who Have Sex with Men

We assessed if same-sex sexual behavior disclosure of index men who have sex with men (MSM) was related to number of HIV self-testing (HIVST) kits requested by index participants, and number of test results successfully uploaded by alters in a network-based HIVST intervention. Index participants are men who accessed and distributed HIVST kits and alters are index's social contacts who received kits. We analyzed treatment arm data [N = 106, mean age = 27 (SD = 5.3)] of an intervention conducted among MSM in Guangzhou, China, May 2019-December 2019. Index MSM who disclosed sexual behavior to their family tended to request more kits [adjusted incidence rate ratio (aIRR) 1.42, 95% CI 1.06, 1.90, p < .05]. Index men who disclosed sexual behavior to their family (aIRR 2.47, 95% CI 1.17, 5.24, p < .05) tended to yield an increase in number of alter test results uploaded. Findings have implications for the development of network-based interventions for key populations.

HIV prevalence, testing and treatment among men who have sex with men through engagement in virtual sexual networks in Kenya: a cross-sectional bio-behavioural study

INTRODUCTION

In Kenya, men who have sex with men (MSM) are increasingly using virtual sites, including web-based apps, to meet sex partners. We examined HIV testing, HIV prevalence, awareness of HIV-positive status and linkage to antiretroviral therapy (ART), for HIV-positive MSM who solely met partners via physical sites (PMSM), compared with those who did so in virtual sites (either solely via virtual sites (VMSM), or via both virtual and physical sites (DMSM)).

METHODS

We conducted a cross-sectional bio-behavioural survey of 1200 MSM, 15 years and above, in three counties in Kenya between May and July 2019, using random sampling of physical and virtual sites. We classified participants as PMSM, DMSM and VMSM, based on where they met sex partners, and compared the following between groups using chi-square tests: (i) proportion tested; (ii) HIV prevalence and (iii) HIV care continuum among MSM living with HIV. We then performed multivariable logistic regression to measure independent associations between network engagement and HIV status.

RESULTS

177 (14.7%), 768 (64.0%) and 255 (21.2%), of participants were classified as PMSM, DMSM and VMSM respectively. 68.4%, 70.4% and 78.5% of PMSM, DMSM and VMSM, respectively, reported an HIV test in the previous six months. HIV prevalence was 8.5% (PMSM), 15.4% (DMSM) and 26.7% (VMSM), p < 0.001. Among those living with HIV, 46.7% (PMSM), 41.5% (DMSM) and 29.4% (VMSM) were diagnosed and aware of their status; and 40.0%, 35.6% and 26.5% were on antiretroviral treatment. After adjustment for other predictors, MSM engaged in virtual networks remained at a two to threefold higher risk of prevalent HIV: VMSM versus PMSM (adjusted odds ratio 3.88 (95% confidence interval (CI) 1.84 to 8.17) p < 0.001); DMSM versus PMSM (2.00 (95% CI 1.03 to 3.87), p = 0.040).

CONCLUSIONS

Engagement in virtual networks is associated with elevated HIV risk, irrespective of individual-level risk factors. Understanding the difference in characteristics among MSM-seeking partners in different sites will help HIV programmes to develop subpopulation-specific interventions.