Short Report: Use of Ceramic Water Filtration in the Prevention of Diarrheal Disease: A Randomized Controlled Trial in Rural South Africa and Zimbabwe
Short Report: Use of Ceramic Water Filtration in the Prevention of Diarrheal Disease: A Randomized Controlled Trial in Rural South Africa and Zimbabwe
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DOI：
10.4269/ajtmh.2008.79.696
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发表时间：
2008-11-01
影响因子：
3.3
通讯作者：
Gundry, Stephen W.
中科院分区：
文献类型：
--
作者：
du Preez, Martella;Conroy, Ronan M.;Gundry, Stephen W.
为了确定陶瓷过滤器在减少腹泻方面的有效性，我们在津巴布韦和南非进行了一项随机对照试验，其中115户家庭中有61户接受了陶瓷过滤器。使用24-36月龄儿童的图画日记，在6个月内每天记录非血性和血性腹泻的发生率。Poisson回归用于比较干预和对照家庭的发病率。调整源质量，干预家庭饮用水显示大肠杆菌计数减少（相对风险，0.67; 95%CI，0.50-0.89）。零E 56.9%的干预户饮用水检出大肠杆菌。血性腹泻的发生率比为0.20（95% CI 0.09-0.43：P < 0.001），非血性腹泻的发生率比为0.17（95% CI，0.08-0.38：P < 0.001），表明滤器使用者的腹泻发生率低得多。结果表明，陶瓷过滤器是有效的，在减少腹泻病的发病率。
To determine the effectiveness of ceramic filters in reducing diarrhea, we conducted a randomized controlled trial in Zimbabwe and South Africa, in which 61 of 115 households received ceramic filters. Incidence of non-bloody and bloody diarrhea was recorded daily over 6 months using pictorial diaries for children 24-36 months of age. Poisson regression was used to compare incidence rates in intervention and control households. Adjusted for Source quality, intervention household drinking water showed reduced Escherichia coli counts (relative risk, 0.67; 95% Cl, 0.50-0.89). Zero E. coli were obtained for drinking water in 56.9% of intervention households. The incidence rate ratio for bloody diarrhea was 0.20 (95% CI 0.09-0.43: P < 0.001) and for non-bloody diarrhea was 0.17 (95% Cl, 0.08-0.38: P < 0.001), indicating much lower diarrhea incidence among filter users. The results Suggest that ceramic filters are effective in reducing diarrheal disease incidence.