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However, dual HIV\/syphilis self-testing in the MSM population has not been studied. We describe a randomised controlled trial to evaluate the effect of dual HIV\/syphilis self-testing on the testing frequency among MSM in China.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods and analysis<\/jats:title>\n                    <jats:p>This randomised controlled trial will be implemented in Guangxi, China. 330 MSM, including 255 frequent testers and 75 less frequent testers, will be recruited and randomly assigned in a 1:1:1 ratio into one of three arms: a site-based testing arm, a single HIVST arm and a dual HIV\/syphilis self-testing arm. Participants in the single HIVST arm and dual HIV\/syphilis self-testing arm will receive two free finger-prick-based HIVST or HIV\/syphilis self-testing kits at enrolment. The data will be collected at five separate times: baseline, 3 months, 6 months, 9 months and 12 months. The primary outcome is the mean frequency of HIV testing used by MSM after intervention comparing each group during the study period. The secondary outcome includes changes in sex behaviours (eg, number of male sex partners and the proportion of consistent condom use) and the mean number of HIV tests used by the social network members over the study period.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Ethics and dissemination<\/jats:title>\n                    <jats:p>The study protocol was reviewed and approved by the Medical Ethics Committee of Guangxi Medical University, China (20210173). The study results will be disseminated through conferences and academic journals.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Trial registration number<\/jats:title>\n                    <jats:p>ChiCTR2100050898.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1136\/bmjopen-2021-059034","type":"journal-article","created":{"date-parts":[[2022,10,10]],"date-time":"2022-10-10T12:10:38Z","timestamp":1665403838000},"page":"e059034","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":5,"title":["Usability of dual HIV\/syphilis self-testing among men who have sex with men in China: study protocol for a three-arm randomised controlled trial"],"prefix":"10.1136","volume":"12","author":[{"given":"Hong","family":"Zhang","sequence":"first","affiliation":[{"name":"Life Sciences Institute, Guangxi Medical University, Nanning, Guangxi, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0285-9869","authenticated-orcid":false,"given":"Min","family":"Wang","sequence":"additional","affiliation":[{"name":"Nursing College, Guangxi Medical University, Nanning, Guangxi, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yun","family":"Zhang","sequence":"additional","affiliation":[{"name":"Nursing College, Guangxi Medical University, Nanning, Guangxi, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sumin","family":"Tan","sequence":"additional","affiliation":[{"name":"Nursing College, Guangxi Medical University, Nanning, Guangxi, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Haimei","family":"Huang","sequence":"additional","affiliation":[{"name":"Nursing College, Guangxi Medical University, Nanning, Guangxi, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jiawen","family":"Zhu","sequence":"additional","affiliation":[{"name":"The Second Affiliated Hospital, Guangxi Medical University, Nanning, Guangxi, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Weiyi","family":"Tian","sequence":"additional","affiliation":[{"name":"Nursing College, Guangxi Medical University, Nanning, Guangxi, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jinli","family":"Mo","sequence":"additional","affiliation":[{"name":"The Second Affiliated Hospital, Guangxi Medical University, Nanning, Guangxi, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jieling","family":"Mo","sequence":"additional","affiliation":[{"name":"Nursing College, Guangxi Medical University, Nanning, Guangxi, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ping","family":"Cen","sequence":"additional","affiliation":[{"name":"AIDS\/STD Control and Prevention, Nanning Municipal Center for Disease Prevention and Control, Nanning, Guangxi, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chuanyi","family":"Ning","sequence":"additional","affiliation":[{"name":"Nursing College, Guangxi Medical University, Nanning, Guangxi, China"},{"name":"Key Lab of AIDS Prevention and Treatment, Life Sciences Institute, Guangxi Medical University, Nanning, Guangxi, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[2022,10,10]]},"reference":[{"key":"2025121513483502000_12.10.e059034.1","unstructured":"UNAIDS . 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