9
views
0
recommends
+1 Recommend
1 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      Avaliação de risco para infecção HIV em homens que fazem sexo com homens e a contribuição das redes de parceiros sexuais Translated title: Risk assessment for HIV infection in men who have sex with men and the contribution of sexual partner networks

      research-article

      Read this article at

      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          Resumo O objetivo do estudo foi avaliar o risco de infecção por HIV em homens que fazem sexo com homens (HSH) a partir do desenvolvimento de um índice que considere as redes de parceiros sexuais. As variáveis do índice foram faixa etária, raça/cor, escolaridade, tipo de relacionamento, uso de preservativo em relações receptivas e insertivas, autopercepção da chance de se infectar pelo HIV, história de infecções sexualmente transmissíveis, além dos resultados dos testes rápidos para HIV. Foram utilizados dados de uma pesquisa de rede egocêntricas HSH, com desenho transversal, realizada no Rio de Janeiro entre 2014 e 2015. O voluntário inicial da pesquisa é denominado ego, cada parceiro é alter, e cada par de pessoas em um relacionamento é a díade. Utilizou-se regressão logística múltipla para definição dos coeficientes das equações para elaboração dos índices. O índice variou de 0 a 1, quanto mais próximo de 1, maior o risco de infecção por HIV. A prevalência de HIV dos egos foi de 13,9%. A média do índice dos egos com teste HIV reagente foi 57% maior do que aqueles não reagentes, o mesmo perfil foi observado nos valores dos índices das díades. O índice permitiu incorporar os dados das redes por meio das díades e contribuiu para a identificação de indivíduos com maior chance de aquisição do HIV.

          Translated abstract

          Abstract This study aimed to evaluate the risk of HIV infection in men who have sex with men (MSM) by developing an index that considers sex partner networks. The index variables were age, ethnicity/skin color, schooling, relationship type, condom use in receptive and insertive relationships, self-perception of the possibility of HIV infection, sexually transmitted infections, and rapid HIV testing results. We used data from a cross-sectional MSM egocentric network survey conducted in Rio de Janeiro between 2014 and 2015. The initial research volunteer is called ego, each partner is called alter, and each pair of people in a relationship is called the dyad. Multiple logistic regression was used to define the coefficients of the equations for the elaboration of the indices. The index ranged from 0 to 1; the closer to 1, the higher the risk of HIV infection. HIV prevalence was 13.9% among egos. The mean egos index with an HIV-reactive test was 57% higher than non-reactive, and the same profile was observed in the index values of dyads. The index allowed the incorporation of network data through the dyads and contributed to the identification of individuals with a higher likelihood of acquiring HIV.

          Related collections

          Most cited references44

          • Record: found
          • Abstract: not found
          • Book: not found

          Applied Logistic Regression

            Bookmark
            • Record: found
            • Abstract: found
            • Article: found
            Is Open Access

            What Drives the US and Peruvian HIV Epidemics in Men Who Have Sex with Men (MSM)?

            In this work, we estimate the proportions of transmissions occurring in main vs. casual partnerships, and by the sexual role, infection stage, and testing and treatment history of the infected partner, for men who have sex with men (MSM) in the US and Peru. We use dynamic, stochastic models based in exponential random graph models (ERGMs), obtaining inputs from multiple large-scale MSM surveys. Parallel main partnership and casual sexual networks are simulated. Each man is characterized by age, race, circumcision status, sexual role behavior, and propensity for unprotected anal intercourse (UAI); his history is modeled from entry into the adult population, with potential transitions including HIV infection, detection, treatment, AIDS diagnosis, and death. We implemented two model variants differing in assumptions about acute infectiousness, and assessed sensitivity to other key inputs. Our two models suggested that only 4–5% (Model 1) or 22–29% (Model 2) of HIV transmission results from contacts with acute-stage partners; the plurality (80–81% and 49%, respectively) stem from chronic-stage partners and the remainder (14–16% and 27–35%, respectively) from AIDS-stage partners. Similar proportions of infections stem from partners whose infection is undiagnosed (24–31%), diagnosed but untreated (36–46%), and currently being treated (30–36%). Roughly one-third of infections (32–39%) occur within main partnerships. Results by country were qualitatively similar, despite key behavioral differences; one exception was that transmission from the receptive to insertive partner appears more important in Peru (34%) than the US (21%). The broad balance in transmission contexts suggests that education about risk, careful assessment, pre-exposure prophylaxis, more frequent testing, earlier treatment, and risk-reduction, disclosure, and adherence counseling may all contribute substantially to reducing the HIV incidence among MSM in the US and Peru.
              Bookmark
              • Record: found
              • Abstract: not found
              • Article: not found

              Review of sampling hard-to-reach and hidden populations for HIV surveillance

                Bookmark

                Author and article information

                Journal
                csc
                Ciência & Saúde Coletiva
                Ciênc. saúde coletiva
                ABRASCO - Associação Brasileira de Saúde Coletiva (Rio de Janeiro, RJ, Brazil )
                1413-8123
                1678-4561
                2021
                : 26
                : suppl 2
                : 3543-3554
                Affiliations
                [5] Rio de Janeiro orgnameFundação Oswaldo Cruz orgdiv1Departamento de Endemias Samuel Pessoa orgdiv2Escola Nacional de Saúde Pública Sergio Arouca Brazil
                [2] Rio de Janeiro orgnameFundação Oswaldo Cruz orgdiv1Programa de Computação Científica Brazil
                [3] London orgnameLiverpool School of Tropical Medicine orgdiv1Department of Infectious Diseases Epidemiology United Kingdom
                [1] Rio de Janeiro orgnameFundação Oswaldo Cruz orgdiv1Escola Nacional de Saúde Pública Sergio Arouca Brazil raquelmct@ 123456gmail.com
                [4] Rio de Janeiro orgnameFundação Oswaldo Cruz orgdiv1Instituto Nacional de Infectologia Brazil
                Article
                S1413-81232021001603543 S1413-8123(21)02600003543
                10.1590/1413-81232021269.2.36912019
                34468650
                da135b29-4707-4574-9b32-c3046ffd19ed

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : 05 January 2020
                : 14 February 2019
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 44, Pages: 12
                Product

                SciELO Brazil

                Categories
                POLÍTICA DE SAÚDE, IMPLEMENTAÇÃO DE PRÁTICAS

                Indicador de risco,HIV,Male homosexuality,Social network,Sexual behavior,Risk indicator,Homossexualidade masculina,Rede social,Comportamento sexual

                Comments

                Comment on this article