Social disparities on PrEP use and awareness among sexual and gender minorities using smartphones in India.

Background: Pre-exposure prophylaxis (PrEP) is a safe and effective HIV prevention strategy. However, in countries such as India where PrEP is driven by the private healthcare system and there is no centralized reporting, it is unknown which populations benefit from PrEP and which populations are being left behind.

Objectives: We examined and characterized PrEP use and awareness among the sexual and gender minorities using smartphones in India and found measures of association of PrEP use.

Design: This is a cross-sectional study design.

Methods: We used Grindr-a widely used geosocial mobile application-to conduct a national cross-sectional survey in India, including respondents who were 18 years or older and reported sex with men (those who identified as cis-gender females were excluded). We examined overall PrEP awareness and PrEP use, then calculated adjusted prevalence odds ratio and 95% confidence intervals to understand PrEP use correlation with socio-behavioral factors.

Results: Out of the total of 3116 eligible participants, 30.3% (N = 947) were aware of PrEP and 3.1% (N = 97) reported current PrEP use. Our multivariate regression model found that there was a statistically significant association of PrEP use with higher income, being employed, preferred language as English for survey, relationship status as single, and use of party drugs. At the same time, there was a statistically significant association of PrEP awareness with age group, having higher education as a graduate or above, higher income, use of party drugs, and multiple sexual partners.

Conclusion: We found overall low awareness and low PrEP use in our cross-sectional sample. PrEP use and awareness were higher among those who belonged to higher-income groups. Including PrEP in existing programmatic interventions by government and NGOs may contribute to PrEP scale-up, which is urgent to stop the HIV epidemic in India.