A statewide outbreak of Cryptosporidium and its association with the distribution of public swimming pools.
A statewide outbreak of Cryptosporidium and its association with the distribution of public swimming pools.
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全州范围内隐孢子虫的爆发及其与公共游泳池分布的关系。
DOI：
10.1017/s0950268811000987
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发表时间：
2012
影响因子：
4.2
通讯作者：
Cavanaugh,JE
中科院分区：
文献类型：
--
作者：
Polgreen,PM;Sparks,JD;Polgreen,LA;Yang,M;Harris,ML;Pentella,MA;Cavanaugh,JE
为了描述2007年爱荷华州隐孢子虫疫情中县级风险因素与发病率之间的关系，我们使用广义线性混合模型，以每个县的隐孢子虫病例数为因变量。我们采用了空间幂协方差结构，该结构假设任何两个县的病例数之间的相关性随着它们之间距离的增加而降低。县人口规模被纳入模型，以调整人口差异。自变量包括特定游泳池类别（大型，小型，水疗，涉水，滑水）和游泳池所有者类别（公寓，营地，乡村俱乐部或健身俱乐部，酒店，市政，学校，其他）的游泳池数量以及年龄<5岁的居民比例。我们发现，较大游泳池数量的增加，具有更多异质混合的游泳池（市政游泳池与乡村俱乐部或公寓游泳池），以及迎合幼儿的游泳池（浅水池）与县级更多的病例相关。
In order to characterize the association between county-level risk factors and the incidence of Cryptosporidium in the 2007 Iowa outbreak, we used generalized linear mixed models with the number of Cryptosporidium cases per county as the dependent variable. We employed a spatial power covariance structure, which assumed that the correlation between the numbers of cases in any two counties decreases as the distance between them increases. County population size was included in the model to adjust for population differences. Independent variables included the number of pools in specific pool categories (large, small, spa, wading, waterslide) and pool-owner classes (apartment, camp, country club or health club, hotel, municipal, school, other) as well as the proportion of residents aged <5 years. We found that increases in the number of bigger pools, pools with more heterogeneous mixing (municipal pools vs. country club or apartment pools), and pools catering to young children (wading pools) are associated with more cases at the county level.