Effect of HSV-2 on population-level trends in HIV incidence in Uganda between 1990 and 2007.

Effect of HSV-2 on population-level trends in HIV incidence in Uganda between 1990 and 2007.
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DOI:
10.1111/tmi.12176
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发表时间:
2013-10
期刊:
Tropical medicine & international health : TM & IH
影响因子:
--
通讯作者:
Weiss HA
Weiss HA
中科院分区:
其他
文献类型:
--
作者:
Biraro S;Kamali A;White R;Karabarinde A;Nsiimire Ssendagala J;Grosskurth H;Weiss HA

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目的探讨单纯疱疹病毒2型(HSV-2)感染对HIV感染的长期影响。 方法乌干达西南部以人口为基础的队列数据用于估计1990年至2007年的艾滋病毒发病率。 储存的血液样本进行HSV-2检测,并通过计算人群归因分数(PAF)估计HSV-2的患病率和发病率对HIV发病率的影响。使用线性回归分析人群水平的HIV年发病率和HSV-2年发病率/流行率之间的关系。结果男性艾滋病发病率随时间的推移而下降,从1990年的8.72/1000人年(pyr)下降到2007年的4.85/1000人年(P趋势<0.001)。 相比之下,妇女艾滋病毒感染率没有下降(1990年为4.86/1 000,2007年为6.74/1 000,P趋势= 0.18)。归因于HSV-2的HIV事件的PAF较高(男性为60%;女性为70%)。没有证据表明艾滋病毒发病率的长期趋势与HSV-2的流行或发病率之间存在关联。结论假设存在因果关系,该人群中新发HIV感染的相当大比例可归因于HSV-2。 该研究未发现HSV-2流行率/发病率对艾滋病毒发病率趋势的影响。在研究期间,艾滋病毒感染率变化不大。这可能是缺乏联系的部分原因。
Objective To assess the long-term effects of population-level HSV-2 infection on HIV incidence. Methods Data from a population-based cohort in south-western Uganda were used to estimate HIV incidence from 1990 to 2007. Stored blood samples were tested for HSV-2, and the impact of HSV-2 prevalence and incidence on HIV incidence was estimated by calculating population attributable fractions (PAFs). The association between population-level annual HIV incidence and annual HSV-2 incidence/prevalence was analysed using linear regression. Results HIV incidence declined over time among men, from 8.72/1000 person-years (pyr) in 1990 to 4.85/1000 pyr in 2007 (P-trend <0.001). In contrast, there was no decline in HIV incidence among women (4.86/1000 pyr in 1990 to 6.74/1000 pyr in 2007, P-trend = 0.18). PAFs of incident HIV attributable to HSV-2 were high (60% in males; 70% in females). There was no evidence of an association between long-term trends in HIV incidence and HSV-2 prevalence or incidence. Conclusion Assuming a causal relationship, a substantial proportion of new HIV infections in this population are attributable to HSV-2. The study did not find an effect of HSV-2 prevalence/incidence on trends in HIV incidence. HIV incidence did not vary much during the study period. This may partly explain the lack of association.
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