日常生活与流感流行期间学生接触网络的比较
发布时间：2018-08-11 18:42
【摘要】：目的:了解农村小学学生日常生活与流感流行期间社会接触网络特征的变化,探讨影响该人群中流感传播的因素,为流感的防控提出控制策略和建议。 方法:经便利抽样对湖北省某市某农村小学发生流感疫情的学生人群进行问卷调查,比较日常生活与流感流行期间学生社会网络结构的变化以及个人接触行为特征的变化。 结果:与日常生活相比,流感流行期间学生社会网络结构特征发生明显变化:流感流行期间学生接触网络密度由0.136降为0.097、全面聚类系数由0.378降为0.321,测地距系数由2.344增为2.749。相对中心度由13.565降为9.697,差异有统计学意义(Z = -5.855, P 0.001)。接近中心度由43.065降为36.816,差异有统计学意义(Z = -7.043, P 0.001)。流感流行期间的k-plexs和n-cliques小团体数均比日常生活时要少得多。同时,学生在该网络中的接触行为特征的变化明显:与日常生活情况相比,流感期间接触人次由6.682降为4.492(Z = -4.574, P 0.001)、接触时间由2.449降为1.861(Z = -2.435, P = 0.015)、接触等级时间由5.665降为4.375(Z = -2.264, P = 0.024),差异均具有统计学意义。 结论:流感严重威胁农村地区青少年学生的健康状况,在校学生的社会网络结构和接触行为特征决定其流感患病的高风险。与日常生活相比,流感流行期间学生的接触网络结构和行为特征的变化有助于遏制流感传播。表明在此次流感疫情过程中采取的干预措施降低了流感的传播风险。
[Abstract]:Objective: to investigate the changes of daily life and social contact network characteristics of rural primary school students during influenza epidemic, to explore the factors affecting influenza transmission in this population, and to put forward control strategies and suggestions for the prevention and control of influenza. Methods: a questionnaire survey was conducted among the students with influenza epidemic in a rural primary school in a certain city of Hubei province. The changes of social network structure and the characteristics of personal contact behavior during daily life and influenza epidemic were compared. Results: compared with daily life, the characteristics of social network structure of students changed obviously during influenza epidemic: the density of contact network decreased from 0.136 to 0.097, the total cluster coefficient decreased from 0.378 to 0.321, and the geodesic distance coefficient increased from 2.344 to 2.749 during influenza epidemic. The relative centrality decreased from 13.565 to 9.697 (Z = -5.855, P 0.001). The close centrality decreased from 43.065 to 36.816 (Z = -7.043, P 0.001). The number of k-plexs and n-cliques small groups during influenza epidemics is much smaller than in daily life. At the same time, the characteristics of students' contact behavior in the network changed significantly: compared with daily life, The number of contacts decreased from 6.682 to 4.492 (Z = -4.574, P 0.001), the exposure time decreased from 2.449 to 1.861 (Z = -2.435, P = 0.015), and the exposure time decreased from 5.665 to 4.375 (Z = -2.264, P = 0.024). Conclusion: influenza is a serious threat to the health status of adolescent students in rural areas. The social network structure and contact behavior characteristics of school students determine the high risk of influenza. Compared with daily life, the changes in the network structure and behavioral characteristics of students during influenza epidemic can help to curb the spread of influenza. This suggests that interventions taken during the influenza epidemic have reduced the risk of influenza transmission.
【学位授予单位】：华中科技大学
【学位级别】：硕士
【学位授予年份】：2010
【分类号】：R181.3
[Abstract]:Objective: to investigate the changes of daily life and social contact network characteristics of rural primary school students during influenza epidemic, to explore the factors affecting influenza transmission in this population, and to put forward control strategies and suggestions for the prevention and control of influenza. Methods: a questionnaire survey was conducted among the students with influenza epidemic in a rural primary school in a certain city of Hubei province. The changes of social network structure and the characteristics of personal contact behavior during daily life and influenza epidemic were compared. Results: compared with daily life, the characteristics of social network structure of students changed obviously during influenza epidemic: the density of contact network decreased from 0.136 to 0.097, the total cluster coefficient decreased from 0.378 to 0.321, and the geodesic distance coefficient increased from 2.344 to 2.749 during influenza epidemic. The relative centrality decreased from 13.565 to 9.697 (Z = -5.855, P 0.001). The close centrality decreased from 43.065 to 36.816 (Z = -7.043, P 0.001). The number of k-plexs and n-cliques small groups during influenza epidemics is much smaller than in daily life. At the same time, the characteristics of students' contact behavior in the network changed significantly: compared with daily life, The number of contacts decreased from 6.682 to 4.492 (Z = -4.574, P 0.001), the exposure time decreased from 2.449 to 1.861 (Z = -2.435, P = 0.015), and the exposure time decreased from 5.665 to 4.375 (Z = -2.264, P = 0.024). Conclusion: influenza is a serious threat to the health status of adolescent students in rural areas. The social network structure and contact behavior characteristics of school students determine the high risk of influenza. Compared with daily life, the changes in the network structure and behavioral characteristics of students during influenza epidemic can help to curb the spread of influenza. This suggests that interventions taken during the influenza epidemic have reduced the risk of influenza transmission.
【学位授予单位】：华中科技大学
【学位级别】：硕士
【学位授予年份】：2010
【分类号】：R181.3
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