Review of sampling hard-to-reach and hidden populations for HIV surveillance
Review of sampling hard-to-reach and hidden populations for HIV surveillance
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DOI：
10.1097/01.aids.0000172879.20628.e1
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发表时间：
2005-05-01
期刊：
影响因子：
3.8
通讯作者：
Heckathorn, D
中科院分区：
文献类型：
--
作者：
Magnani, R;Sabin, K;Heckathorn, D
对难以接触和“隐藏”的亚群进行充分监测，对于在低流行率环境中遏制艾滋病毒流行和在高流行率环境中减缓传播速度至关重要。然而，由于各种原因，传统的设施和基于调查的监测数据收集策略对一些关键亚群无效，特别是那些行为非法或违法的亚群。本文批判性地回顾了替代抽样策略进行行为或生物监测调查，这些群体。非概率抽样方法，如基于设施的哨点监测和滚雪球抽样是最简单的，但受到抽样/选择偏差的高风险。所考虑的大多数概率抽样方法都是有限的，因为它们只适用于某些情况和某些群体。一个相对较新的方法，响应者驱动的抽样，链参考抽样的适应，似乎是最有前途的一般应用。然而，由于其在资源匮乏环境中对艾滋病毒监测的适用性尚未确定，因此在得出确切结论之前，还需要进一步的实地试验。
Adequate surveillance of hard-to-reach and 'hidden' subpopulations is crucial to containing the HIV epidemic in low prevalence settings and in slowing the rate of transmission in high prevalence settings. For a variety of reasons, however, conventional facility and survey-based surveillance data collection strategies are ineffective for a number of key subpopulations, particularly those whose behaviors are illegal or illicit. This paper critically reviews alternative sampling strategies for undertaking behavioral or biological surveillance surveys of such groups. Non-probability sampling approaches such as facility-based sentinel surveillance and snowball sampling are the simplest to carry out, but are subject to a high risk of sampling/selection bias. Most of the probability sampling methods considered are limited in that they are adequate only under certain circumstances and for some groups. One relatively new method, respondent-driven sampling, an adaptation of chain-referral sampling, appears to be the most promising for general applications. However, as its applicability to HIV surveillance in resource-poor settings has yet to be established, further field trials are needed before a firm conclusion can be reached.