Position-specific HIV risk in a large network of homeless youths.
Position-specific HIV risk in a large network of homeless youths.
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DOI：
10.2105/ajph.2011.300295
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发表时间：
2012-01
影响因子：
12.7
通讯作者：
Monro W
中科院分区：
文献类型：
--
作者：
Rice E;Barman-Adhikari A;Milburn NG;Monro W
为了增加支持社会网络结构与健康之间关系的证据，本研究考察了离家出走和无家可归的青少年 (RHY) 样本之间的相互关系，以及在聚合网络结构中的位置如何与艾滋病毒风险相关。个人和社交网络数据是从 136 个 RHY 样本中收集的。生成了社会矩阵，使用“弹簧嵌入器”完成了网络可视化，并检查了 k 核。多元逻辑回归模型评估了外周和非外周网络位置与近期无保护性行为之间的关联。个人层面上的少量提名聚合成一个巨大的社交网络，具有可见的核心、外围（包括孤立）和小集群。女性青年更有可能位于核心地区，无家可归两年或更长时间的青年也是如此。处于网络边缘的青少年不太可能报告无保护的性行为，而且无家可归的时间也较短。艾滋病毒风险不仅是冒险青年与其他冒险青年之间联系的函数，而且风险还与网络整体结构中的位置有关。我们为基于社交网络的有效预防计划、年轻女性住房和健康计划的需求，以及住房优先计划可能对外围青年产生的额外吸引力提供建议，因为街头生活对他们来说较少，这可能有助于他们更成功地参与住房计划的结构和机会。
To add to the body of evidence supporting the relationship between social network structures and health, this study examined interconnections among a sample of runaway and homeless youth (RHY) and how position in the aggregated network structure was associated with HIV risk. Individual and social network data were collected from a sample of 136 RHY. A sociomatrix was generated, network visualization was accomplished with a “spring embedder,” and k-cores were examined. Multivariate logistic regression models assessed the associations between peripheral and non-peripheral network position and recent unprotected sex. Small numbers of nominations at the individual level aggregated into a large social network with a visible core, periphery (including isolates), and small clusters. Female youth were more likely to be located in the core as were youth who had been homeless for two years or more. Youth at the periphery of the network were less likely to report unprotected sex and had been homeless for a shorter duration. Not only was HIV risk a function of risk-taking youth being connected to other risk-taking youth, but also risk was associated with position in the overall structure of the network. We provide suggestions for effective social network-based prevention programs, need for young women’s housing and health programs, as well as the likely added traction that housing-first programs will have with peripheral youth, for whom the pull of street life is less, which may help them to more successfully engage in the structures and opportunities of housing programs.