Background HIV disproportionally affects key populations including men who have sex with men (MSM). HIV prevalence among MSM varies from 17% in Brazil and Mexico to 13% in Peru, whereas it is below 0.5% for the general population in each country. Pre-exposure prophylaxis (PrEP) with emtricitabine/tenofovir is being implemented in the context of combination HIV prevention. Reports on willingness to use PrEP among MSM have started to emerge over the last few years. Previously reported factors associated with willingness to use PrEP include awareness, higher sexual risk behavior, and previous sexually transmitted infection. Objective This study aimed to evaluate the factors associated with willingness to use daily oral PrEP among MSM in 3 Latin American, middle-income countries (Brazil, Mexico, and Peru). Methods This Web-based, cross-sectional survey was advertised in 2 gay social network apps (Grindr and Hornet) used by MSM to find sexual partners and on Facebook during 2 months in 2018. Inclusion criteria were being 18 years or older, cisgender men, and HIV-negative by self-report. Eligible individuals answered questions on demographics, behavior, and PrEP (awareness, willingness to use, barriers, and facilitators). Multivariable logistic regression modeling was performed to assess the factors associated with willingness to use daily oral PrEP in each country. Results From a total sample of 43,687 individuals, 44.54% of MSM (19,457/43,687) were eligible and completed the Web-based survey—Brazil: 58.42% (11,367/19,457), Mexico: 30.50% (5934/19,457), and Peru: 11.08% (2156/19,457); median age was 28 years (interquartile range: 24-34), and almost half lived in large urban cities. Most participants were recruited on Grindr (69%, 13,349/19,457). Almost 20% (3862/19,352) had never tested for HIV, and condomless receptive anal sex was reported by 40% (7755/19,326) in the previous 6 months. Whereas 67.51% (13,110/19,376) would be eligible for PrEP, only 9.80% (1858/18,959) of participants had high HIV risk perception. PrEP awareness was reported by 64.92% (12,592/19,396); this was lower in Peru (46.60%, 1002/2156). Overall, willingness to use PrEP was reported by 64.23% (12,498/19,457); it was highest in Mexico (70%, 4158/5934) and lowest in Peru (58%, 1241/2156). In multivariate regression models adjusted for age, schooling, and income in each country, willingness to use PrEP was positively associated with PrEP awareness and PrEP facilitators (eg, free PrEP and HIV testing) and negatively associated with behavioral (eg, concerned by daily pill regimen) and belief barriers (eg, sexual partners may expect condomless sex). Conclusions In this first cross-country, Web-based survey in Latin America, willingness to use PrEP was found to be high and directly related to PrEP awareness. Interventions to increase awareness and PrEP knowledge about safety and efficacy are crucial to increase PrEP dem...

Background Stay-at-home orders and social distancing have been implemented as the primary tool to reduce the spread of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). However, this approach has indirectly caused, only in Lima- Peru, more than 2.3 million Peruvians to lose their jobs. As a result, the risk of food insecurity may have increased in affected low-income families, especially those that depend on daily income. This study estimates the prevalence of moderate or severe food insecurity (MSFI) and identifies the associated factors that explain this outcome during the stay-at-home order. Methods A cross-sectional web-based survey, with the non-probability sample, was conducted between May 18 and June 30, 2020, during the stay-at-home order in Peru. We used social media advertisements on Facebook to reach 18-59 year-olds living in Peru. MSFI was assessed using the Food Insecurity Experience Scale (FIES). Rasch model methodology requirements were considered, and factors associated with MSFI were selected using a stepwise forward selection. A Poisson generalized linear model (Poisson GLMs), with log link function, was employed to estimate adjusted prevalence ratios (aPR). Findings This analysis is based on 1846 replies. The prevalence of MSFI was 23.2%, and FIES proved to be an acceptable instrument with reliability 0.72 and infit 0.8-1.3. People more likely to experience MSFI were those with low income (less than 255 US$/month) in the pre-pandemic period (aPR 3.77; 95%CI, 1.98-7.16), those whose income was significantly reduced during the pandemic period (aPR 2.27; 95%CI, 1.55-3.31), and those whose savings ran out in less than 21 days (aPR 1.86; 95%CI, 1.43-2.42). Likewise, heads of households (aPR 1.20; 95%CI, 1.00-1.44) and those with relatives with probable SARS-CoV2 cases (aPR 1.29; 95%CI, 1.05-1.58) were at an increased risk of MSFI. Additionally, those who perceived losing weight during the pandemic (aPR 1.21; 95%CI, 1.01-1.45), and reported increases in processed foods prices (aPR 1.31; 95%CI, 1.08-1.59), and eating less minimally processed food (aPR 1.82; 95%CI, 1.48-2.24) were also more likely to experience MSFI. Interpretation People most at risk of MSFI were those in a critical economic situation before and during the pandemic period. It is necessary to reinforce social protection policies to prevent or mitigate these adverse effects. Funding None.

Background Despite efforts to stop HIV epidemic in Latin America, new HIV cases continue to increase in the region especially among young MSM (YMSM). This study aims to assess if sociodemographic characteristics are associated with self-reported HIV positive status among YMSM from three Latin American countries. Methods Cross-sectional web-based survey advertised on dating apps (Grindr and Hornet) and Facebook in Brazil, Mexico and Peru. For this analysis, we included YMSM aged 18–24 years who self-reported their HIV status. We used multivariable logistic regression models for each country separately to verify if sociodemographic characteristics (race, education and income) were associated with HIV self-reported status after adjusting for behavior characteristics (sexual attraction and steady partner). Results Among 43,687 MSM who initiated the questionnaire, 27,318 (62.5%) reported their HIV status; 7001 (25.6%) of whom were YMSM. Most YMSM (83.4%) reported an HIV test in the past year, and 15.7% reported an HIV positive status in Peru, 8.4% in Mexico and 7.7% in Brazil. In adjusted models, low-income was associated with higher odds of self-reported HIV positive status in Brazil (aOR = 1.33, 95%CI: 1.01–1.75) and Peru (aOR = 1.56, 95%CI: 1.02–2.40), but not in Mexico. Lower education was associated with higher odds of self-reported HIV positive status only in Brazil (aOR = 1.35, 95%CI: 1.05–1.75). Conclusions In this large, cross-country study, self-reported HIV positive status among YMSM was high. Lower socioeconomic status was associated with higher odds of self-reported HIV positive status in Brazil and Peru. There is an urgent need for HIV prevention interventions targeting YMSM, and efforts to address low-income YMSM are especially needed in Peru and Brazil.

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BACKGROUND HIV epidemics disproportionally affect key populations including men who have sex with men (MSM). HIV prevalence among MSM varies from 17% in Brazil and Mexico to 13% in Peru, while it is below 0.5% for the general population. Pre-exposure prophylaxis (PrEP) with daily oral emtricitabine/tenofovir is being implemented in the context of combination HIV prevention. Reports on PrEP awareness, willingness to use, and acceptability among MSM have started to emerge over the last few years. Previously reported factors associated with willingness to use PrEP include: awareness, low cost, higher sexual risk behavior, prior sexually transmitted infection, and unwillingness to use condoms. OBJECTIVE This study aims to evaluate the factors associated with willingness to use daily oral PrEP among MSM in three Latin American, middle-income countries (Brazil, Mexico and Peru). METHODS This online cross-sectional survey was advertised in two gay social network apps (Grindr and Hornet) used by MSM to find sex partners and on Facebook during two months in 2018. Inclusion criteria were ≥18 years of age, cisgender men, and HIV-negative by self-report. Eligible individuals answered questions on: demographics, behavior, and PrEP (awareness, willingness to use, barriers and facilitators). Multivariable logistic regression modeling was performed to assess the factors associated with willingness to use daily oral PrEP in each country. RESULTS From a total sample of 43,687 individuals, 19,457 (45%) MSM were eligible and completed the online survey (Brazil: 58%, Mexico: 31%, Peru: 11%); median age was 28 years (IQR: 24-34), almost half lived in large urban cities and 89% self-defined as homosexual. Most of the participants were recruited on Grindr (69%). Almost 20% had never tested for HIV and condomless receptive anal sex was reported by 46% in the previous 6 months. A total of 13,110 (67%) would be eligible for PrEP (adapted from WHO risk criteria), but only 10% of participants had high HIV risk perception. PrEP awareness was reported by 65%, this was lower in Peru (46%). Overall, willingness to use PrEP was reported by 64%, highest in Mexico (70%) and lowest in Peru (58%). In multivariate regression models adjusted for age, schooling, and income: in each country willingness to use PrEP was positively associated with PrEP awareness and PrEP facilitators (e.g. free PrEP and HIV testing), and negatively associated with behavioral (e.g., concerned by daily pill regimen) and belief barriers (e.g., sex partners may expect condomless anal sex). CONCLUSIONS In this first cross-country online survey in Latin America, willingness to use PrEP was found to be high and directly related to PrEP awareness. Interventions to increase awareness and PrEP knowledge about safety and efficacy are crucial to increase PrEP demand. This study provides important information to support the implementation of PrEP in Brazil, Mexico and Peru.