基于社会网络分析法对社区静脉吸毒者交往社会结构实证研究  

Empirical study on social communication structure of community IDUs based on social network analysis method

作　　者：梁旭[1] 谭兰芬[1] 田维英 农守玩[1] 

机构地区：[1]百色市疾病预防控制中心,广西百色533099

出　　处：《中国艾滋病性病》2016年第10期791-794,共4页Chinese Journal of Aids & STD

摘　　要：目的尝试运用社会网络分析法研究社区静脉注射吸毒者(IDUs)交往的社会网络结构的可行性和特点。方法采用提名法,收集2013年主动参加针具交换的IDUs和其帮助交换针具的其他吸毒人员名单,根据结果建立社区IDUs交往的无向矩阵数据库,选择社会网络分析(SNA)常用的分析指标,并使用UCINET 6.212软件分析社区IDUs的社会组织结构特点,使用NetDraw对矩阵数据进行可视化处理。结果 2013年,共有69人参与针具交换活动,其中有65人提名其帮助交换针具的IDUs姓名,占94.20%(65/69)。参与调查的IDUs合计参与针具交换活动261次,累计提名410人,平均每次交换活动提名1.57人,公安在册和不在册IDUs平均每次提名1.59人和1.44人。结点中心度、接近中心度和中间中心度的最高两个数量级行动者占的比例分别为4.38%(14/320)、2.19%(7/320)和1.56%(5/320);整体网络密度为0.0077。成分分析显示,整个被调查群体分为三个独立群体,三个群体的行动者占整个群体比例为98.13%、1.25%和0.63%。派系分析显示,整个群体分为20个派系,派系之间存在共享成员的比例为85.00%。结论通过SNA调查方法和计算机软件,可以将日常收集的工作信息用于研究社区IDUs的交往网络。社区IDUs之间绝大部分存在相互关联,但IDUs之间交往程度低,整个网络受到少数人控制或影响。社区IDUs的交往网络与毒品流通有直接关系。可利用以上特点制定相应公共卫生干预策略、方式和提高干预效果。Objective To study the feasibility and features of social communication network structure of intravenous drug users（IDUs）.Methods Nomination method for sociological surveys was adopted to collect the name list of IDUs for one who actively participated in needle exchange and another who needed help of other IDUs in needle exchange program in 2013.An undirected matrix database for community IDUs communication was established,with the commonly used indicators for social network analysis（SNA）and UCINET 6.212 software was used for the analysis.NetDraw was used for visualization processing of matrix data.Results Totally 69 IDUs participated in the needle exchange program in 2013.Among them 65 IDUs were nominated to help exchange needles for other IDUs,accounting for 94.20 %（65/69）.IDUs in the survey participated in 261 times of needle exchange,with accumulated nomination of 410 IDUs and the mean nomination of 1.57 IDUs for each.The mean nominations of registered and unregistered IDUs in public security department were 1.59 and 1.44 respectively.The ratios of two max orders of magnitude actors for node centrality,closeness centrality,and betweenness centrality were 4.38%（14/320）,2.19%（7/320）and 1.56%（5/320）respectively.The overall network density was 0.0077.Component analysis indicated that the surveyed group was divided into three independent subgroups.The actors of three crowds accounted for 98.13%,1.25% and 0.63% respectively.Faction analysis indicated that the whole group was divided into 20 factions,and the shared members among the factions accounted for 85.00%.Conclusion This study shows that mutual interrelation exists among most of community IDUs.However,the communication degree among IDUs is low.The whole network is controlled and affected by the minority.The communication network of IDUs is closely related with drug circulation.Hence,above features can be utilized to develop the relevant health intervention strategies so as to improve the intervention effects.

关 键 词：静脉注射吸毒人员 社会网络分析 中心性分析 整体网络密度 凝聚子群分析 

分 类 号：R512.91[医药卫生—内科学]