Measuring concurrency: an empirical study of different methods in a large population-based survey and evaluation of the UNAIDS guidelines
Measuring concurrency: an empirical study of different methods in a large population-based survey and evaluation of the UNAIDS guidelines
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DOI：
10.1097/qad.0b013e328350fc1f
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发表时间：
2012-05-15
期刊：
影响因子：
3.8
通讯作者：
Crampin, Amelia C.
中科院分区：
文献类型：
--
作者：
Glynn, Judith R.;Dube, Albert;Crampin, Amelia C.
背景：联合国艾滋病规划署最近的指南建议根据重叠的合作伙伴日期，在面试日期前 6 个月测量并发性。这具有理论上的优势，但人们对它在实践中的测量效果知之甚少。 方法：使用马拉维北部农村地区进行的性行为调查的数据测试了联合国艾滋病规划署措施的假设。所有 15 至 59 岁的居民成年人都有资格。问题包括过去 12 个月内所有婚姻和非婚姻伙伴关系的自我报告并发数和日期。结果：共有 6796 名女性和 5253 名男性接受了采访，分别占合格人数的 83% 和 72%。由于很少有女性报告有多个伴侣，因此详细分析仅限于男性。总体而言，19.2% [95% 置信区间 (CI) 18.1-20.2] 的男性自我报告在过去一年中存在并发关系（几乎所有男性都有多个伴侣）。使用重叠日期估计为 16.7% (15.7-17.7)。排除日期相关的合作伙伴关系（使重叠不确定）或将分析限制于最近的三个合作伙伴，得到了类似的结果。联合国艾滋病规划署 6 个月的衡量值为 12.0% (11.1-12.9)，当前并发率为 11.5% (10.6-12.4)。对于未婚男性，基于日期的 12 个月测量值与自我报告的 12 个月测量值之间的差异要大得多：自我报告的 11.1%（9.7-12.4）； 7.1% (6.9-8.2) 日期。一夫多妻制（占已婚男性的 15%）和较长的恋爱关系稳定了已婚男性的估计。非婚姻伴侣关系的报告不足，尤其是那些开始时间较长的伴侣关系。结论：回忆关系日期的困难以及伴侣的报告不足导致使用基于日期的衡量标准低估了并发性。自我报告的并发性更容易测量并且看起来更完整。 (C) 2012 年 Wolters Kluwer Health 垂直条 Lippincott Williams & Wilkins
Background: Recent UNAIDS guidelines recommend measuring concurrency 6 months before the interview date, based on overlapping partnership dates. This has theoretical advantages, but little is known about how well it can be measured in practice.Methods: The assumptions underlying the UNAIDS measure were tested using data from a sexual behaviour survey conducted in rural northern Malawi. All resident adults aged 15-59 were eligible. Questions included self-reported concurrency and dates for all marital and nonmarital partnerships in the past 12 months.Results: A total of 6796 women and 5253 men were interviewed, 83 and 72% of those eligible, respectively. Since few women reported multiple partners, detailed analysis was restricted to men. Overall 19.2% [95% confidence interval (CI) 18.1-20.2] of men self-reported concurrent relationships in the past year (almost all of those with more than one partner). Using overlapping dates the estimate was 16.7% (15.7-17.7). Excluding partnerships which tied on dates (making overlap uncertain) or restricting the analysis to the three most recent partners gave similar results. The UNAIDS 6-month measure was 12.0% (11.1-12.9), and current concurrency was 11.5% (10.6-12.4). The difference between dates-based and self-reported 12-month measures was much larger for unmarried men: 11.1% (9.7-12.4) self-reported; 7.1% (6.9-8.2) on dates. Polygyny (15% of married men) and the longer duration of relationships stabilized the estimates for married men. Nonmarital partnerships were under-reported, particularly those starting longer ago.Conclusions: The difficulties of recall of dates for relationships, and under-reporting of partners lead to underestimation of concurrency using date-based measures. Self-reported concurrency is much easier to measure and appears more complete. (C) 2012 Wolters Kluwer Health vertical bar Lippincott Williams & Wilkins