Estimating the regional distribution of men who have sex with men (MSM) based on Internet surveys.
Estimating the regional distribution of men who have sex with men (MSM) based on Internet surveys.
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DOI：
10.1186/1471-2458-9-180
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发表时间：
2009-06-11
影响因子：
4.5
通讯作者：
Bochow M
中科院分区：
文献类型：
--
作者：
Marcus U;Schmidt AJ;Hamouda O;Bochow M
由于其规模和区域分布情况不明，难以对男男性行为者（MSM）等难以接触的人群进行感染流行率和发病率的测量。基于人口的调查最近被用来估计男男性行为者的总数，但这些调查通常不足以衡量男男性行为者在人口中所占比例的区域差异。我们探讨了使用的比例区域分布的大型基于互联网的调查，从德国的男男性接触者估计的区域分布的男男性接触者在德国。我们比较了来自两个独立的男男性行为调查的参与者，并与德国最大的同性恋和其他男男性行为者联系和约会网站的用户配置文件的分布在区域分布的代表性。此外，我们比较了报告的艾滋病毒阳性调查参与者的区域分布与国家监测系统内艾滋病毒通知的区域分布，这些通知可归因于通过同性恋接触传播。两次调查中调查参与者的区域分布几乎相同，尽管调查参与者之间几乎没有重叠。调查与用户概况之间可能存在细微差异。艾滋病毒诊断的调查参与者的比例区域分布与国家监测数据相似。考虑到难以通过其他抽样方法获得“隐藏”人群（如男男性行为者）的代表性数据，基于互联网的调查可能提供一种简单和低成本的工具来估计区域人口分布-至少在西方后工业化国家。在大城市或这些城市的集水区，男男性行为者的确切居住地仍存在一些不确定性。不同数据集的结果略有不同，可能是由于不同地区MSM网站的受欢迎程度不同。MSM人群的总人口规模可以根据代表性国家人口调查的数据进行估计。这两个估计值可以结合起来计算区域MSM人口的绝对规模。
Measurement of prevalence and incidence of infections in a hard to reach population like men who have sex with men (MSM) is hampered by its unknown size and regional distribution. Population-based surveys have recently been used to estimate the total number of MSM, but these surveys are usually not large enough to measure regional differences in the proportion of MSM in the population. We explored the use of the proportional regional distribution of participants of large internet-based surveys among MSM from Germany to estimate the regional distribution of MSM in Germany. We compared participants from two separate MSM behavioural surveys with each other and with the distribution of user profiles of the largest contact and dating website for gay and other MSM in Germany in terms of the representativeness of the regional distribution. In addition, we compared the regional distribution of reportedly HIV positive survey participants with the regional distribution of HIV notifications within the national surveillance system that can be attributed to transmission through homosexual contacts. Regional distribution of survey participants was almost identical in both surveys, despite little overlap between survey participants. Slight discrepancies between surveys and user profiles could be observed. Proportional regional distribution of survey participants with HIV diagnosis resembled national surveillance data. Considering the difficulties to obtain representative data by other sampling methods for "hidden" populations like MSM, internet-based surveys may provide an easy and low cost tool to estimate the regional population distribution – at least in Western post-industrialized countries. Some uncertainties remain about the exact place of residence of MSM in larger cities or catchment areas of these cities. Slightly different results from different datasets may be due to unequal popularity of MSM websites in different regions. The total population size of the MSM population can be estimated based on e.g. data from representative national population surveys. Both estimates can then be combined to calculate the absolute size of regional MSM populations.
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影响因子：
3.8
作者：
Nguyen, Trang Quyen;Gwynn, R. Charon;Thorpe, Lorna E.
通讯作者：
Thorpe, Lorna E.
影响因子：
3.6
作者：
Evans, Alison Ruth;Wiggins, Richard D.;Elford, Jonathan
通讯作者：
Elford, Jonathan
DOI：
10.1590/s0102-311x2006000700002
发表时间：
2006-07-01
期刊：
Cadernos de Saúde Pública
影响因子：
--
作者：
Michaels, Stuart;Lhomond, Brigitte
通讯作者：
Lhomond, Brigitte
影响因子：
3.8
作者：
Mercer, CH;Fenton, KA;Johnson, AM
通讯作者：
Johnson, AM
DOI：
10.1097/00126334-200302011-00008
发表时间：
2003-02-01
影响因子：
3.6
作者：
Hamouda, O
通讯作者：
Hamouda, O