What would you choose: Online or Offline or Mixed services? Feasibility of online HIV counselling and testing among Thai men who have sex with men and transgender women and factors associated with service uptake.

INTRODUCTION: HIV testing coverage remains low among men who have sex with men (MSM) and transgender women (TGW). We studied characteristics of Thai MSM and TGW who chose online and/or offline platforms for HIV counselling and testing and the feasibility of integrating online technologies and HIV self-testing to create service options. METHODS: From December 2015 to June 2017, MSM and TGW enrolled from Bangkok Metropolitan Region and Pattaya could choose between: offline HIV counselling and testing (Offline group), online pre-test counselling and offline HIV testing (Mixed group), and online counselling and online, supervised, HIV self-testing (Online group). Sociodemographic data, risk behaviour and social network use characteristics were collected by self-administered questionnaires. Logistic regression models identified covariates for service preferences. RESULTS: Of 472 MSM and 99 TGW enrolled, 202 self-selected the Offline group, 158 preferred the Mixed group, and 211 chose the Online group. The Online group had the highest proportion of first-time testers (47.3% vs. 42.4% vs. 18.1%, p < 0.001) and reported highest HIV prevalence (15.9% vs. 13.0% vs. 3.4%, p = 0.001) as compared to Offline and Mixed groups, respectively. Having tested for HIV twice or more (OR 2.57, 95% CI 1.03 to 6.41, p = 0.04) increased the likelihood to choose online pre-test counselling. Being TGW (OR 6.66, 95% CI 2.91 to 15.25, p < 0.001) and using social media from four to eight hours (OR 2.82, 95% CI 1.48 to 5.37, p = 0.002) or >8 hours (OR 2.33, 95% CI 1.05 to 5.16, p = 0.04) increased selection of online, supervised, HIV self-testing. Providers primarily used smartphones (79.2%) and laptops (37.5%) to deliver online services. Self-testing strip image sharpness and colour quality were rated "good" to "excellent" by all providers. Most participants (95.1%) agreed that online supervision and HIV self-testing guidance offered were satisfactory and well delivered. CONCLUSIONS: Online HIV services among MSM and TGW are feasible in Thailand and have the potential to engage high proportions of first-time testers and those with high HIV prevalence. When designing public health interventions, integrating varied levels of online HIV services are vital to engage specific sections of MSM and TGW populations in HIV services. CLINICAL TRIAL NUMBER: NCT03203265.

Use of human papillomavirus DNA, E6/E7 mRNA, and p16 immunocytochemistry to detect and predict anal high-grade squamous intraepithelial lesions in HIV-positive and HIV-negative men who have sex with men.

BACKGROUND: Men who have sex with men (MSM) are at high risk of having anal cancer. Anal high-grade squamous intraepithelial lesion (HSIL) is the precursor of anal cancer. We explored the use of different biomarkers associated with human papillomavirus (HPV) infection and HPV-mediated cell transformation to detect and predict HSIL among HIV-positive and HIV-negative MSM. METHODOLOGY/PRINCIPAL FINDINGS: A total of 123 HIV-positive and 123 HIV-negative MSM were enrolled and followed for 12 months. High-resolution anoscopy (HRA) with biopsies were performed at every visit along with anal sample collection for cytology, high-risk HPV DNA genotyping, HPV E6/E7 mRNA, and p16 immunocytochemistry. Performance characteristics and area under the receiver operator characteristics curve were calculated for these biomarkers at baseline, and Cox regression compared the usefulness of these biomarkers in predicting incident HSIL. High-risk HPV DNA, E6/E7 mRNA, and p16 immunocytochemistry each identified 43-46% of MSM whose baseline test positivity would trigger HRA referral. E6/E7 mRNA had the highest sensitivity (64.7%) and correctly classified the highest number of prevalent HSIL cases. With the exception of p16 immunochemistry, most tests showed significant increases in sensitivity but decreases specificity versus anal cytology, while the overall number of correctly classified cases was not significantly different. Baseline or persistent type 16 and/or 18 HPV DNA was the only test significantly predicting incident histologic HSIL within 12 months in models adjusted for HIV status and low-grade squamous intraepithelial lesions at baseline. CONCLUSIONS/SIGNIFICANCE: Countries with a high HIV prevalence among MSM and limited HRA resources may consider using biomarkers to identify individuals at high risk of HSIL. E6/E7 mRNA had the highest sensitivity for prevalent HSIL detection regardless of HIV status, whereas type 16 and/or 18 HPV DNA performed best in predicting development of incident HSIL within 12 months.

Anal human papillomavirus infection among Thai men who have sex with men with and without HIV infection: prevalence, incidence, and persistence.

BACKGROUND: HIV-positive men who have sex with men (MSM) have a higher prevalence of anal human papillomavirus (HPV) infection and anal cancer incidence than HIV-negative MSM. High-risk HPV persistence is an important risk factor for the development of anal cancer. METHODS: A total of 123 HIV-positive and 123 HIV-negative MSM were enrolled from the Thai Red Cross AIDS Research Centre in Bangkok, Thailand, and followed for 12 months. Anal sample collection for HPV genotyping was performed at every visit. HPV prevalence, incidence, clearance, and persistence were calculated. A logistic regression model was used to study factors associated with high-risk HPV persistence. RESULTS: The prevalence of any anal HPV infection was 85% in HIV-positive and 58.5% in HIV-negative MSM (P < 0.0001). The prevalence of high-risk HPV infection was 57.5% in HIV-positive and 36.6% in HIV-negative MSM (P = 0.001). HPV 16 was the most common high-risk HPV type. HIV-positive MSM had a higher prevalence (22.5% vs. 9.8%, P = 0.008) and persistence (16.7% vs. 1.3%, P < 0.001) of HPV 16 than HIV-negative MSM and a trend for higher incidence (16.1 vs. 6.1 episodes/1000 person-months, incidence rate ratio 2.6, P = 0.058). HIV infection (odds ratio: 4.45, 95% confidence interval: 2.11 to 9.4, P < 0.001) and smoking in HIV-positive MSM (odds ratio: 2.3, 95% confidence interval: 1.17 to 4.5, P = 0.015) were independently associated with high-risk HPV persistence in multivariate models. CONCLUSIONS: In addition to targeting HIV-positive MSM who are at higher risk for anal, high-risk HPV persistence, anal cancer prevention programs should also integrate behavioral interventions such as smoking cessation to modify risk for high-risk HPV persistence.

Comparable performance of conventional and liquid-based cytology in diagnosing anal intraepithelial neoplasia in HIV-infected and -uninfected Thai men who have sex with men.

BACKGROUND: Anal cytology has increasingly been used to screen for anal intraepithelial neoplasia (AIN) among men who have sex with men (MSM) at increased risk for anal cancer. Use of liquid-based cytology has been reported to reduce fecal and bacterial contamination and air-drying artifact compared with conventional cytology. Costs associated with liquid-based cytology, however, may limit its use in resource-limited settings. METHODS: Anal swab samples were collected from MSM participants and used to prepare conventional and liquid-based cytology slides. Abnormal conventional cytology results triggered referral for high-resolution anoscopy and biopsy. Agreement between the 2 cytology techniques and the positive predictive value ratios of histology confirmed AIN were calculated. RESULTS: Among 173 MSM, abnormal anal cytology was identified in 46.2% of conventional and 32.4% of liquid-based slides. The results agreed in 62.4% of cases with a κ value of 0.49 (P < 0.001). HIV-infected MSM had a 3.6-fold increased odds of having discordant anal cytology results (95% confidence interval: 1.6 to 7.8; P = 0.001) compared with HIV-uninfected MSM. Histological AIN 2 and 3 were identified in 20 MSM. The positive predictive value ratios and 95% confidence interval indicated no difference between the 2 techniques. CONCLUSIONS: Conventional anal cytology may be a preferred option for resource-limited settings given comparable performances to liquid-based cytology for the detection of AIN, although the agreement between the 2 techniques was lower among HIV-infected MSM. Due to high prevalence of abnormal anal cytology and AIN, health systems should prepare adequate infrastructure for high-resolution anoscopy services and AIN treatment.