Estimación y análisis de la incidencia de VIH en población adulta del Perú: resultados de la aplicación del modelo matemático MoT

Alarcón, Jorge; Pun, Mónica; Gutiérrez, César; Whittembury, Álvaro; Tejada, Romina A.; Suárez, Luis; Rosell, Gustavo; Bórquez, Annick; Cuchí, Paloma

doi:10.1590/s1726-46342012000400006

Cited by 9 publications

(6 citation statements)

References 29 publications

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“…By the first quarter of 2017, the number of HIV and AIDS cases in Peru reached 68,201 and 35,847, respectively, according to official reports of the National Center for Epidemiology, Prevention and Control of Diseases,[1] with more than 50% of cases occurring among men who have sex with men (MSM) and transgender women (TW). [2] Approximately 20% of MSM [3,4] and 30% of TW are HIV infected, with little change in prevalence over the past decade. [5] The incidence of new infection remains about 3 per 100/person-years despite the introduction of antiretroviral therapy (ART).…”

Section: Introductionmentioning

confidence: 99%

The Relationship Between Risk Perception and Frequency of HIV Testing Among Men Who Have Sex with Men and Transgender Women, Lima, Peru

et al. 2018

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HIV infections in Peru are concentrated among men who have sex with men (MSM) and transgender women (TW). HIV testing rates among them remain low, delaying entrance into care. We assessed the prevalence of frequent HIV testing (at least every 6 months) and associated factors among 310 MSM and TW who attend sexual health clinics in Lima, Peru, and who reported that they were HIV seronegative or unaware of their status. Only 39% of participants tested frequently, and 22% had never tested; 29% reported that they were at low or no risk for acquiring HIV. Reporting low or no risk for acquiring HIV was associated with frequent testing (adjusted prevalence ratio [aPR] = 1.53, 95% CI 1.13-2.08); those reporting unprotected anal sex were less likely to test frequently (aPR = 0.66, 95% CI 0.50-0.87). HIV prevalence was 12% and did not vary by risk perception categories. This at-risk population tests infrequently and may not understand the risk of having unprotected sex.

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Section: Introductionmentioning

confidence: 99%

The Relationship Between Risk Perception and Frequency of HIV Testing Among Men Who Have Sex with Men and Transgender Women, Lima, Peru

et al. 2018

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“…1–3 HIV prevention strategies currently available are inadequate to control the spread of new infections among MSM, thus new interventions are needed. Vital to any prevention strategy is HIV testing, the primary gateway into HIV care and treatment.…”

Section: Introductionmentioning

confidence: 99%

Acceptability and feasibility of HIV self-testing among men who have sex with men in Peru and Brazil

et al. 2015

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HIV self-testing has the potential to increase testing frequency and uptake. This pilot study assessed the feasibility and acceptability of HIV self-testing in a sample of sexually active men who have sex with men in Peru and Brazil. Participants were trained to use a whole blood rapid HIV self-test and instructed to use the self-test monthly during this three-month study. Test acceptability was measured with self-reported use of the test at the one-month and three-month study visits, and test feasibility was assessed by direct observation of self-test administration at the final three-month visit. A total of 103 participants (52 in Peru and 51 in Brazil) were enrolled, and 86% completed the three-month study. Nearly all participants reported use of the self-test (97% at one-month and 98% at three-month visit), and all participants correctly interpreted the self-administered test results when observed using the test at the final study visit. HIV self-testing with a blood-based assay was highly acceptable and feasible. HIV self-testing may have the potential to increase testing frequency and to reach high-risk men who have sex with men not currently accessing HIV-testing services.

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“…19,20 In our analysis we use the Comunidades Positivas study with data gathered from MSM and TW participants over 18 months. 21 We assess incidence of HIV, HSV-2, anal and pharyngeal chlamydia and gonorrhea infections and associated risk factors in the MSM and TW population of Lima and Callao.…”

Section: Introductionmentioning

confidence: 99%

HIV and Sexually Transmitted Infection Incidence and Associated Risk Factors Among High-Risk MSM and Male-to-Female Transgender Women in Lima, Peru

Castillo

Konda

León

et al. 2015

JAIDS Journal of Acquired Immune Deficiency Syndromes

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Background Men who have sex with men (MSM) and male-to-female transgender women (TW) are at increased risk of HIV and sexually transmitted infections (STIs). We evaluated factors associated with incidence of HIV, HSV-2, and chlamydia and gonorrhea (anal and pharyngeal). Methods We used data from the Comunidades Positivas trial with MSM/TW who have sex with men in Lima, Peru. Participants were asked about sexual risk behaviors and underwent HIV/STI testing at baseline and 9- and 18-month follow-ups. We used discrete time proportional hazards regression to calculate hazard ratios (HRs) for variables associated with incidence of each STI. Results Among 718 MSM/TW, HIV incidence was 3.6 cases per 100 person-years. HIV incidence was associated with having an incident STI (aHR 3.73). Unprotected receptive anal intercourse was associated with incident anal chlamydia (aHR 2.20). An increased number of sexual partners increased incident HSV-2 (aHR 3.15 for 6–14 partners and 3.97 for 15–46 partners compared to 0–2 partners). Risk of anal gonorrhea decreased with each sexually active year (aHR 0.94) and increased for unprotected compensated sex (aHR 2.36). Risk of pharyngeal gonorrhea also decreased with each year since sexual debut (aHR 0.95). Risk of anal chlamydia decreased with each sexually active year (aHR 0.96), risk increased with reports of unprotected sex work (aHR 1.61), and unprotected receptive anal sex (aHR 2.63). All aHRs have p-values < 0.05. Conclusion MSM/TW experience high incidence of HIV. Up-to-date prevalence and incidence information and identifying factors associated with infection can help develop a more effective combination prevention response.

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Estimación y análisis de la incidencia de VIH en población adulta del Perú: resultados de la aplicación del modelo matemático MoT

Cited by 9 publications

References 29 publications

The Relationship Between Risk Perception and Frequency of HIV Testing Among Men Who Have Sex with Men and Transgender Women, Lima, Peru

The Relationship Between Risk Perception and Frequency of HIV Testing Among Men Who Have Sex with Men and Transgender Women, Lima, Peru

Acceptability and feasibility of HIV self-testing among men who have sex with men in Peru and Brazil

HIV and Sexually Transmitted Infection Incidence and Associated Risk Factors Among High-Risk MSM and Male-to-Female Transgender Women in Lima, Peru

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