Kightlinger Lon, Horan Vickie
South Dakota Department of Health, USA.
S D Med. 2013 May;66(5):177, 179-81.
Schools are important amplification settings of influenza virus transmission. We demonstrated correlation of school absenteeism (due to any illness) with other influenza A (H1N1) activity surveillance data during the 2009 pandemic. We collected nonspecific illness student absenteeism data from August 17, 2009 through April 3, 2010 from 187 voluntarily participating South Dakota schools using weekly online surveys. Relative risks (RR) were calculated as the ratio of the probability of absenteeism during elevated weeks versus the probability of absenteeism during the baseline weeks (RR = 1.89). We used Pearson correlation to associate absenteeism with laboratory-confirmed influenza cases, influenza cases diagnosed by rapid tests, influenza-associated hospitalizations and deaths reported in South Dakota during the 2009 H1N1 pandemic period. School-absenteeism data correlated strongly with data from these other influenza surveillance sources.
学校是流感病毒传播的重要放大场所。我们证明了在2009年大流行期间，学校缺勤率（因任何疾病）与其他甲型H1N1流感活动监测数据之间的相关性。我们从2009年8月17日至2010年4月3日，通过每周在线调查从南达科他州187所自愿参与的学校收集了非特异性疾病导致的学生缺勤数据。相对风险（RR）计算为缺勤率升高周的缺勤概率与基线周的缺勤概率之比（RR = 1.89）。我们使用Pearson相关性将缺勤率与实验室确诊的流感病例、快速检测诊断的流感病例、2009年H1N1大流行期间南达科他州报告的流感相关住院和死亡情况进行关联。学校缺勤数据与这些其他流感监测来源的数据密切相关。
