Community-level changes in condom use and uptake of HIV pre-exposure prophylaxis by gay and bisexual men in Melbourne and Sydney, Australia: results of repeated behavioural surveillance in 2013-17

Community-level changes in condom use and uptake of HIV pre-exposure prophylaxis by gay and bisexual men in Melbourne and Sydney, Australia: results of repeated behavioural surveillance in 2013-17
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DOI:
10.1016/s2352-3018(18)30072-9
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发表时间:
2018-08-01
期刊:
影响因子:
16.1
通讯作者:
Prestage, Garrett
Prestage, Garrett
中科院分区:
医学1区
文献类型:
--
作者:
Holt, Martin;Lea, Toby;Prestage, Garrett

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背景 暴露前预防 (PrEP) 已在澳大利亚维多利亚州和新南威尔士州的大型公共资助实施项目中迅速推广。通过对男同性恋和双性恋男性的行为监测,我们分析了 PrEP 的采用情况和效果,特别是对未使用 PrEP 的男同性恋和双性恋男性使用安全套的影响。 方法 我们从墨尔本和悉尼同性恋社区定期调查 (GCPS) 以及对维多利亚州墨尔本和新南威尔士州悉尼成年男同性恋和双性恋男性的横断面调查中收集了数据。招募发生在同性恋场所或活动以及网上。符合资格的参与者为年满18岁(面对面招募)或16岁或以上(网络招募),确定为男性(包括确定为男性的变性参与者);过去 5 年内与男性发生过性关系,或被认定为同性恋或双性恋,或两者兼而有之。使用多变量逻辑回归,我们评估了避孕套使用、与临时伴侣的无套肛交 (CAIC) 以及男同性恋和双性恋男性使用 PrEP 的趋势,并控制了样本随时间的变化。调查结果 2013 年 1 月 1 日至 2017 年 3 月 31 日期间,27 011 名参与者在墨尔本 (n=13 051) 和悉尼 (n=13 960) GCPS 完成了调查问卷。 16 827 名报告者在调查前 6 个月内与临时男性伴侣发生过性行为,并被纳入这些分析中。 2013 年,2692 名男性中有 26 名 (1%) 报告了 CAIC,且 HIV 呈阴性并正在使用 PrEP,而 2016 年 3660 名男性中有 167 名 (5%) 以及 2017 年 4018 名男性中有 652 名 (16%) (p< 0. 0001)。据报告,2013 年 2692 名男性中的 1360 名男性 (46%) 持续使用安全套,2016 年 3660 名男性中的 1523 名男性 (42%) 以及 2017 年 4018 名男性中的 1229 名男性 (31%) (p< 0. 0001)。 2013 年,2692 名 HIV 阴性或未经检测且未接受 PrEP 的男性中,有 800 名(30%)报告了 CAIC,而 2016 年 3660 名男性中有 1118 名(31%)报告了 CAIC,2017 年 4018 名男性中有 1166 名(29%)(非显着趋势)。 解读 墨尔本男同性恋和双性恋男性使用 PrEP 的情况迅速增加悉尼的安全套使用率也同样迅速下降。其他司法管辖区在对 PrEP 的引入进行建模并监测其效果时,应考虑社区层面 CAIC 增加的潜力。版权所有 (C) 2018 爱思唯尔有限公司。保留所有权利。
Background Pre-exposure prophylaxis (PrEP) has been rapidly rolled out in large, publicly funded implementation projects in Victoria and New South Wales, Australia. Using behavioural surveillance of gay and bisexual men, we analysed the uptake and effect of PrEP, particularly on condom use by gay and bisexual men not using PrEP.Methods We collected data from the Melbourne and Sydney Gay Community Periodic Surveys (GCPS), cross-sectional surveys of adult gay and bisexual men in Melbourne, VIC, and Sydney, NSW. Recruitment occurred at gay venues or events and online. Eligible participants were 18 years or older (face-to-face recruitment) or 16 years or older (online recruitment), identified as male (including transgender participants who identified as male); and having had sex with a man in the past 5 years or identified as gay or bisexual, or both. Using multivariate logistic regression, we assessed trends in condom use, condomless anal intercourse with casual partners (CAIC), and PrEP use by gay and bisexual men, controlling for sample variation over time.Findings Between Jan 1, 2013, and March 31, 2017, 27 011 participants completed questionnaires in the Melbourne (n=13 051) and Sydney (n=13 960) GCPS. 16 827 reported sex with casual male partners in the 6 months before survey and were included in these analyses. In 2013, 26 (1%) of 2692 men reported CAIC and were HIV-negative and using PrEP, compared with 167 (5%) of 3660 men in 2016 and 652 (16%) of 4018 men in 2017 (p< 0 . 0001). Consistent condom use was reported by 1360 (46%) of 2692 men in 2013, 1523 (42%) of 3660 men in 2016, and 1229 (31%) of 4018 men in 2017 (p< 0 . 0001). In 2013, 800 (30%) of 2692 men who were HIV-negative or untested and not on PrEP reported CAIC, compared with 1118 (31%) of 3660 men in 2016, and 1166 (29%) of 4018 in 2017 (non-significant trend).Interpretation A rapid increase in PrEP use by gay and bisexual men in Melbourne and Sydney was accompanied by an equally rapid decrease in consistent condom use. Other jurisdictions should consider the potential for communitylevel increases in CAIC when modelling the introduction of PrEP and in monitoring its effect. Copyright (C) 2018 Elsevier Ltd. All rights reserved.