【摘要】：目的:了解農(nóng)村小學(xué)學(xué)生日常生活與流感流行期間社會(huì)接觸網(wǎng)絡(luò)特征的變化,探討影響該人群中流感傳播的因素,為流感的防控提出控制策略和建議。 方法:經(jīng)便利抽樣對湖北省某市某農(nóng)村小學(xué)發(fā)生流感疫情的學(xué)生人群進(jìn)行問卷調(diào)查,比較日常生活與流感流行期間學(xué)生社會(huì)網(wǎng)絡(luò)結(jié)構(gòu)的變化以及個(gè)人接觸行為特征的變化。 結(jié)果:與日常生活相比,流感流行期間學(xué)生社會(huì)網(wǎng)絡(luò)結(jié)構(gòu)特征發(fā)生明顯變化:流感流行期間學(xué)生接觸網(wǎng)絡(luò)密度由0.136降為0.097、全面聚類系數(shù)由0.378降為0.321,測地距系數(shù)由2.344增為2.749。相對中心度由13.565降為9.697,差異有統(tǒng)計(jì)學(xué)意義(Z = -5.855, P 0.001)。接近中心度由43.065降為36.816,差異有統(tǒng)計(jì)學(xué)意義(Z = -7.043, P 0.001)。流感流行期間的k-plexs和n-cliques小團(tuán)體數(shù)均比日常生活時(shí)要少得多。同時(shí),學(xué)生在該網(wǎng)絡(luò)中的接觸行為特征的變化明顯:與日常生活情況相比,流感期間接觸人次由6.682降為4.492(Z = -4.574, P 0.001)、接觸時(shí)間由2.449降為1.861(Z = -2.435, P = 0.015)、接觸等級時(shí)間由5.665降為4.375(Z = -2.264, P = 0.024),差異均具有統(tǒng)計(jì)學(xué)意義。 結(jié)論:流感嚴(yán)重威脅農(nóng)村地區(qū)青少年學(xué)生的健康狀況,在校學(xué)生的社會(huì)網(wǎng)絡(luò)結(jié)構(gòu)和接觸行為特征決定其流感患病的高風(fēng)險(xiǎn)。與日常生活相比,流感流行期間學(xué)生的接觸網(wǎng)絡(luò)結(jié)構(gòu)和行為特征的變化有助于遏制流感傳播。表明在此次流感疫情過程中采取的干預(yù)措施降低了流感的傳播風(fēng)險(xiǎn)。
[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.
【學(xué)位授予單位】：華中科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2010
【分類號】：R181.3

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