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密尔沃基市饮用水浊度与确诊肠胃炎的时间变化

Temporal variation in drinking water turbidity and diagnosed gastroenteritis in Milwaukee.

作者信息

Morris R D, Naumova E N, Levin R, Munasinghe R L

机构信息

Center for Environmental Epidemiology, Medical College of Wisconsin, Milwaukee, USA.

出版信息

Am J Public Health. 1996 Feb;86(2):237-9. doi: 10.2105/ajph.86.2.237.

Abstract

Daily counts of diagnosed gastroenteritis (gastrointestinal events) in Milwaukee County, Wisconsin, from January 1992 through April 1993 were compared with reported daily turbidity from the two drinking water treatment plants serving the county. Turbidity in both plants was associated with an increased number of gastrointestinal events even after exclusion of a major documented outbreak of cryptosporidiosis. During the 434-day period prior to the outbreak, an increase in turbidity of 0.5 nephelometric turbidity units at one of the plants was associated with relative risks for gastrointestinal events of 2.35 among children (95% confidence interval [CI] = 1.34, 4.12) and 1.17 among adults (95% CI = 0.91, 1.52).

摘要

1992年1月至1993年4月期间,对威斯康星州密尔沃基县确诊的肠胃炎(胃肠道疾病)每日病例数与为该县供水的两家饮用水处理厂报告的每日浊度进行了比较。即使在排除记录在案的隐孢子虫病大爆发后,两家工厂的浊度仍与胃肠道疾病数量增加有关。在此次疫情爆发前的434天期间,其中一家工厂的浊度增加0.5散射浊度单位,儿童胃肠道疾病的相对风险为2.35(95%置信区间[CI]=1.34,4.12),成人相对风险为1.17(95%CI=0.91,1.52)。

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