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Lancet:使用不同类型的注射孕激素避孕的女性与HIV-1的联系

2015-05-27 崔倩 译 MedSci原创

背景: 一些观察性研究报道,使用长效醋酸甲羟孕酮(DMPA)避孕的女性的HIV-1获得风险比那些不使用激素避孕的女性要高。该研究的目的是评估是否两个注射孕激素避孕药,DMPA和庚炔诺酮(NET-EN),导致了HIV-1感染的不同风险。    方法: 在2009年9月9日到2012年8月13日之间,研究人员从南非中使用注射避孕的女性参与的VOICE研究中收集数据,这个多

背景: 一些观察性研究报道,使用长效醋酸甲羟孕酮(DMPA)避孕的女性的HIV-1获得风险比那些不使用激素避孕的女性要高。该研究的目的是评估是否两个注射孕激素避孕药,DMPA和庚炔诺酮(NET-EN),导致了HIV-1感染的不同风险。
    
方法: 在2009年9月9日到2012年8月13日之间,研究人员从南非中使用注射避孕的女性参与的VOICE研究中收集数据,这个多站点,随机,安慰剂对照试验,研究了三种配方替诺福韦预防HIV-1感染的安全性和有效性。每个月对这些女性避孕药的使用和感染情况进行评估。在这一前瞻性研究中,研究人员通过Cox比例风险回归分析评估了使用DMPA和NET-EN的患者HIV-1感染的差异。
    
结果: 3141名使用注射避孕的南非女性被纳入本次分析:1788名(56.9%)单独使用DMPA,1097名(34.9%)单独使用NET-EN,256名(8.2%)在随访过程中不同的时间使用这两种类型的注射。在2733例7年的随访期间,207例HIV-1感染的发生(发生率每100人年为7.57,95%Cl 6.61-8.68)。DMPA使用者HIV-1感染的风险(每100人年发病为8.62,95%Cl 7.35-10.11)比在NET-EN使用者要高(每100人年发病为5.67,4.35-7.38;风险比1.53,95%Cl 1.12-2.08,P=0.007)。当对潜在的混杂变量调整时该联系持续(调整后的危险比[aHR]1.41,95%Cl 1.06-1.89,P=0.02)。在招募时血清单纯疱疹病毒2型(HSV-2)阳性的女性,与HSV-2阴性的女性(1.09 0.78-1.52)相比,aHR是2.02(95%Cl 1.26-3.24)(Pinteraction=0.07)。
    
结论: 虽然这些观测分析中适度的联系应谨慎解释,但这些研究结果表明,NET-EN(HIV低风险)可能是DMPA(HIV-1高发病率)的一种替代注射药物。

原始出处:

Dr Lisa M Noguchi, PhDcorrespondenceemail, Prof Barbra A Richardson, PhD, Prof Jared M Baeten, MD, Prof Sharon L Hillier, PhD, Jennifer E Balkus, PhD, Prof Z Mike Chirenje, MD, Katherine Bunge, MD, Gita Ramjee, PhD, Gonasagrie Nair, MBChB, Thesla Palanee-Phillips, PhD, Pearl Selepe, MBChB, Prof Ariane van der Straten, PhD, Urvi M Parikh, PhD, Kailazarid Gomez, MPM, Jeanna M Piper, MD, D Heather Watts, MD, Prof Jeanne M Marrazzo, MD for the VOICE Study Team.Risk of HIV-1 acquisition among women who use different types of injectable progestin contraception in South Africa.Lancet,May 26, 2015.

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