{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,26]],"date-time":"2025-10-26T21:28:02Z","timestamp":1761514082411,"version":"build-2065373602"},"reference-count":35,"publisher":"CSIRO Publishing","issue":"3","license":[{"start":{"date-parts":[[2025,9,10]],"date-time":"2025-09-10T00:00:00Z","timestamp":1757462400000},"content-version":"vor","delay-in-days":127,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"funder":[{"DOI":"10.13039\/100005564","name":"Gilead Sciences","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100005564","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100010877","name":"ViiV Healthcare","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100010877","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100001117","name":"amfAR, The Foundation for AIDS Research","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100001117","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100000925","name":"National Health and Medical Research Council","doi-asserted-by":"publisher","award":["1008367"],"award-info":[{"award-number":["1008367"]}],"id":[{"id":"10.13039\/501100000925","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2025,6,10]]},"abstract":"<jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>In an era of biomedical prevention of HIV transmission, prevention of sexually transmissible infections (STIs) remains a priority for male HIV-serodiscordant couples. Three common STIs in populations of gay and bisexual men are chlamydia, gonorrhoea and syphilis.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>We examined the incidence of these three infections in 343 male HIV-serodiscordant couples in Australia, Brazil and Thailand. The couples participated in a prospective, observational cohort study that included regular STI testing and behavioural surveys for HIV-negative partners (HNP).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>HIV-positive partners (HPP; IR\u00a0=\u00a022.9\/100\u00a0person-years, 95% CI: 19.3\u201327.0) had a higher incidence rate of any STI (22.9\/100\u00a0person-years, 95% CI: 19.3\u201327.0) compared with HNP (14.9\/100\u00a0person-years, 95% CI: 12.1\u201318.3). It was more common for only the HPP (n\u00a0=\u00a0107\/343, 7.1%) or only the HNP (n\u00a0=\u00a060, 4.0%) to have an STI than for both to have an STI (n\u00a0=\u00a029\/343, 1.9%). Higher STI incidence was associated with vocational education (HNP: aHR\u00a0=\u00a02.19, P\u00a0=\u00a00.005), full-time employment (HPP: aHR\u00a0=\u00a01.61, P\u00a0=\u00a00.016), living in Brazil (HPP: aHR\u00a0=\u00a01.85, P\u00a0=\u00a00.017) or Thailand (HPP: aHR\u00a0=\u00a01.98, P\u00a0=\u00a00.008), having anal sex with other partners (HNP: aHR\u00a0=\u00a02.42, P\u00a0=\u00a00.003; HPP: aHR\u00a0=\u00a02.87, P\u00a0&amp;lt;\u00a00.001) and recent PrEP use (HPP: aHR\u00a0=\u00a01.51, P\u00a0=\u00a00.044). Lower STI incidence was associated with age &amp;gt;40 years (HNP: aHR\u00a0=\u00a00.49, P\u00a0=\u00a00.021; HPP: aHR\u00a0=\u00a00.46, P\u00a0=\u00a00.006), full-time employment (HNP: aHR\u00a0=\u00a00.56, P\u00a0=\u00a00.016) and &amp;gt;5\u00a0years since first sex with the study partner (HNP: aHR\u00a0=\u00a00.50, P\u00a0=\u00a00.036).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>There were differences in STI diagnoses within HIV-serodiscordant couples, particularly based on their agreements about sex outside the relationship. Interventions aimed at strengthening these agreements with commitments to STI testing could be effective in reducing the incidence of STIs.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1071\/sh24208","type":"journal-article","created":{"date-parts":[[2025,5,6]],"date-time":"2025-05-06T02:15:11Z","timestamp":1746497711000},"source":"Crossref","is-referenced-by-count":0,"title":["Diagnoses of sexually transmissible infections in HIV-serodiscordant male couples in Australia, Brazil and Thailand"],"prefix":"10.1071","volume":"22","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7090-293X","authenticated-orcid":true,"given":"James","family":"Gray","sequence":"first","affiliation":[{"name":"AThe Kirby Institute, UNSW Sydney, Sydney, NSW, Australia."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Fengyi","family":"Jin","sequence":"additional","affiliation":[{"name":"AThe Kirby Institute, UNSW Sydney, Sydney, NSW, Australia."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0036-3165","authenticated-orcid":true,"given":"Nittaya","family":"Phanuphak","sequence":"additional","affiliation":[{"name":"BInstitute of HIV Research and Innovation, Bangkok, Thailand."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ruth K.","family":"Friedman","sequence":"additional","affiliation":[{"name":"CInstituto Nacional de Infectologia Evandro Chagas, Funda\u00e7\u00e3o Oswaldo Cruz, Rio de Janeiro, Brazil."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9081-1664","authenticated-orcid":true,"given":"Christopher K.","family":"Fairley","sequence":"additional","affiliation":[{"name":"DMelbourne Sexual Health Centre, Melbourne, Vic, Australia."},{"name":"ECentral Clinical School, Monash University, Melbourne, Vic, Australia."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"David J.","family":"Templeton","sequence":"additional","affiliation":[{"name":"AThe Kirby Institute, UNSW Sydney, Sydney, NSW, Australia."},{"name":"FDepartment of Sexual Health Medicine, Sydney Local Health District, Sydney, NSW, Australia."},{"name":"GCentral Clinical School, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Iryna","family":"Zablotska-Manos","sequence":"additional","affiliation":[{"name":"HWestmead Clinical School, Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia."},{"name":"IWestern Sydney Sexual Health, Western Sydney Local Health District, Sydney, NSW, Australia."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jennifer","family":"Hoy","sequence":"additional","affiliation":[{"name":"JDepartment of Infectious Diseases, Alfred Hospital and Monash University, Melbourne, Vic, Australia."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"David","family":"Baker","sequence":"additional","affiliation":[{"name":"KEast Sydney Doctors, Sydney, NSW, Australia."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mayara Secco Torres","family":"Silva","sequence":"additional","affiliation":[{"name":"CInstituto Nacional de Infectologia Evandro Chagas, Funda\u00e7\u00e3o Oswaldo Cruz, Rio de Janeiro, Brazil."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Andrew","family":"Grulich","sequence":"additional","affiliation":[{"name":"AThe Kirby Institute, UNSW Sydney, Sydney, NSW, Australia."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5834-8278","authenticated-orcid":true,"given":"Benjamin","family":"Bavinton","sequence":"additional","affiliation":[{"name":"AThe Kirby Institute, UNSW Sydney, Sydney, NSW, Australia."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"name":"for the Opposites Attract study group","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"67","published-online":{"date-parts":[[2025,5,6]]},"reference":[{"key":"2025102617235485900_R1","unstructured":"WHO. 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HIV Transmission risk through condomless sex if HIV+ partner on suppressive art: PARTNER study. Conference on retroviruses and opportunistic infections; 3\u20136 March 2014; Boston, United States of America; 2014."},{"issue":"27","key":"2025102617235485900_R6","doi-asserted-by":"publisher","first-page":"2587","DOI":"10.1056\/NEJMoa1011205","article-title":"Preexposure chemoprophylaxis for HIV prevention in men who have sex with men.","volume":"363","author":"Grant","year":"2010","journal-title":"N Engl J Med"},{"key":"2025102617235485900_R7","unstructured":"Broady T, Chan C, MacGibbon J, Bavinton B, Mao L, Cripps S, et al. Gay community periodic survey: Queensland 2021. Sydney: Centre for Social Research in Health, UNSW Sydney; 2022."},{"key":"2025102617235485900_R8","unstructured":"Broady T, Chan C, MacGibbon J, Bavinton B, Mao L, McKenzie T, et al. Gay community periodic survey: Melbourne 2022. 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