An analysis of admissions from 155 United States hospitals to determine the influence of weather on stroke incidence
An analysis of admissions from 155 United States hospitals to determine the influence of weather on stroke incidence
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DOI：
10.1016/j.jocn.2010.08.035
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发表时间：
2011-05-01
影响因子：
2
通讯作者：
Burnett, Mark G.
中科院分区：
文献类型：
--
作者：
Cowperthwaite, Matthew C.;Burnett, Mark G.
天气是最常被提出的推动中风入院明显季节性趋势的因素。在这里，我们介绍了迄今为止美国最大的关于天气与缺血性中风之间关系的研究。我们考虑了2004年至2008年五年期间美国20个州155家医院的入院情况。数据集包括196，439例卒中住院，分为缺血性（n = 98，930）、出血性（n = 18，960）或短暂性脑缺血发作（n = 78，549）。中风入院的变化进行了测试，以确定他们是否跟踪在同一时期的季节性和短暂的天气模式。使用自相关分析，在研究期间没有观察到中风入院的显著季节性变化。使用时间序列分析，在五年的研究中，没有观察到任何天气变量和任何中风亚型之间的显着关联。这项研究表明，天气和中风之间的季节性联系是高度混淆的，天气和中风之间的联系实际上是不存在的。因此，以前的研究报告之间的联系，具体的天气模式和中风应谨慎解释。(C)2010年由Elsevier Ltd.出版
Weather is the most frequently proposed factor driving apparent seasonal trends in stroke admissions. Here, we present the largest study of the association between weather and ischemic stroke in the USA to date. We consider admissions to 155 United States hospitals in 20 states during the five-year period from 2004 to 2008. The data set included 196,439 stroke admissions, which were classified as ischemic (n = 98,930), hemorrhagic (n = 18,960), or transient ischemic attack (n = 78,549). Variations in stroke admissions were tested to determine if they tracked seasonal and transient weather patterns over the same time period. Using autocorrelation analyses, no significant seasonal changes in stroke admissions were observed over the study period. Using time-series analyses, no significant association was observed between any weather variable and any stroke subtype over the five-year study. This study suggests that seasonal associations between weather and stroke are highly confounded, and an association between weather and stroke is virtually non-existent. Therefore, previous studies reporting an association between specific weather patterns and stroke should be interpreted with caution. (C) 2010 Published by Elsevier Ltd.