[Surveillance for HIV infection in MSM selected through respondent driven sampling in Beijing, 2005-2012]

Awareness and use of nonoccupational HIV post-exposure prophylaxis and factors associated with awareness among MSM in Beijing, China

Background

Human immunodeficiency virus (HIV) sexual transmission among men who have sex with men (MSM) has increased markedly in Beijing, China, during the past decade. Nonoccupational HIV post-exposure prophylaxis (nPEP) is a highly efficacious biomedical prevention strategy that significantly reduces HIV-transmission risk. This study examined nPEP awareness among MSM and the factors influencing it.

Methods

Consecutive, cross-sectional MSM surveys were conducted from April to August of 2018 and 2019. Demographic data as well as that on behavior and awareness regarding nPEP was collected. Factors influencing nPEP awareness were assessed using univariate and multivariable logistic regression.

Results

There were 1,202 eligible responders recruited. Of the responders, 42.5% had nPEP awareness, and 59.9% expressed interest in receiving nPEP in the future, if required. Greater odds of nPEP awareness were associated with younger age, higher education level (adjusted odds ratio [aOR]: 4.011, 95% confidence interval [CI]: 2.834–5.678, P<0.001), higher income, use of the Internet to meet sexual partners (aOR: 2.016, 95% CI: 1.481–2.744, P<0.001), greater HIV-related knowledge (aOR: 3.817, 95% CI: 1.845–7.899, p<0.001), HIV testing (aOR: 2.584, 95% CI: 1.874–3.563, p<0.001), and sexually transmitted infections (aOR: 1.736, 95% CI: 1.174–2.569, P = 0.006). Lower odds of nPEP awareness were associated with greater stigma score (aOR: 0.804, 95% CI: 0.713–0.906, P<0.001).

Conclusions

The findings indicate suboptimal awareness and low utilization of nPEP in Beijing and highlight nPEP inequities among MSM with stigma. Strengthening the training of health service providers and peer educators in reducing stigma and disseminating nPEP knowledge is imperative.

HIV-1 subtype diversity and transmission strain source among men who have sex with men in Guangxi, China

With the rapid increase in HIV prevalence of men who have sex with men (MSM) in recent years and common human migration and travelling across different provinces in China, MSM are now finding it easier to meet each other, which might contribute to local HIV epidemics as well as fueling cross-province transmission. We performed a cross-sectional survey in 2018-2019 to investigate the current HIV subtype diversity and inferred HIV strain transmission origin among MSM in Guangxi province, China based on a phylogenetic analysis. Based on 238 samples, we found that the HIV-1 subtype diversity was more complicated than before, except for three major HIV subtypes/circulating recombinant forms (CRFs): CRF07_BC, CRF01_AE, CRF55_01B, five other subtypes/CRFs (CRF59_01B, B, CRF08_BC, CRF67_01B, CRF68_01B) and five unique recombinant forms (URFs) were detected. In total, 76.8% (169/220) of samples were infected with HIV from local circulating strains, while others originated from other provinces, predominantly Guangdong and Shanghai. The high diversity of HIV recombinants and complicated HIV transmission sources in Guangxi MSM indicates that there has been an active sexual network between HIV positive MSM both within and outside Guangxi without any effective prevention. Inter-province collaboration must be enforced to provide tailored HIV prevention and control services to MSM in China.

Evaluation of smartphone APP-based case-management services among antiretroviral treatment-naïve HIV-positive men who have sex with men: a randomized controlled trial protocol

Background

Men who have sex with men (MSM) are disproportionally affected by HIV in China. ‘Treatment as Prevention’ is a promising strategy for HIV prevention but requires adequate adherence. Mobile health (mHealth) may be an acceptable and feasible approach for service delivery, but there is little evidence supporting mHealth intervention for improving antiretroviral treatment adherence among HIV-infected MSM in low- and middle-income countries, including China. This study will aim to develop a smartphone application-based case-management service and compare its efficacy to standard care with regards to adherence, CD4, HIV viral load and psychosocial outcomes among MSM patients in Guangzhou, China.

Methods

A non-blinded 1:1 parallel-group randomised controlled trial will be conducted in Guangzhou Eighth People’s Hospital, with 300 MSM enrolled in each arm. Eligible MSM who are newly initiating ART will be randomly assigned to an intervention group (standard-of-care case management plus mHealth intervention) or a control group (standard-of-care case management). The development of the mHealth intervention will be based on the information–motivation–behavioural skills theory of ART adherence, and comprise four components: educational articles, one-to-one online communication with case managers, support-service information and hospital-visit reminders. Outcome measures will be collected at baseline and at months 1, 3, 6, and 12. The primary outcomes will be ART adherence and CD4 count at month 6. Secondary outcomes include HIV RNA, sexual behaviours, mental health status, illness perceptions, and quality of life. χ² test and t-test will be used for between-group comparisons. Intervention effects will be evaluated using General estimating equation performed by SAS 9.0, on the principle of intention-to-treat. Structural equation modelling will be used to test potential mechanisms of intervention effect.

Discussion

This study is the first to explore the efficacy of mHealth intervention in the case management services targeted at HIV-infected MSM in low-and middle-income countries. Once proven effective, the innovative mHealth service could be integrated into the routine case management of PLWH. as well as be tailored to the patient management service for other chronic conditions.

Trial registration

ClinicalTrial.gov: NCT03860116; Registered on 1 March 2019.