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对两个县 6个改水村和 6个对照村的供用水方式和居民饮水与腹泻病进行调查 ,并对改建集中供水控制腹泻病的经济效益进行分析。结果表明 ,改建深井为主的简易集中供水水量充足 ,采取鼓励用水的措施 ,使当地居民人均饮用水量达到“农村生活饮用水量卫生标准” ,同时水质显著高于改水前的分散式给水 ,腹泻病人平均生病时间为 3 0 1天 ,有 43 45 %的腹泻病人不就诊。控制混杂因素后 ,腹泻病归因于饮用非自来水的AR %达 5 9 1%。用流行病学的经济分析方法进行效益分析结果改建集中供水的投入与腹泻病减少的经济受益之比为 1:5 43。
Investigations were made on water supply for drinking water and drinking water and diarrheal diseases in 6 water improvement villages and 6 control villages in two counties and the economic benefits of rehabilitated centralized water supply control of diarrhea were analyzed. The results showed that simple centralized water supply with deep well alteration was sufficient and measures to encourage water use were taken so that the per capita drinking water consumption of local residents reached the “health standard of drinking water in rural areas”, while the water quality was significantly higher than that of decentralized water supply before water diversion , The average duration of illness of diarrhea patients was 310 days and 4345% of the patients with diarrhea did not receive treatment. After controlling for confounding factors, diarrheal disease was attributed to AR% of 591% of drinking tap water. Benefit Analysis Using Epidemiological Economic Analysis Results The ratio of investment in rehabilitated centralized water supply to the economic benefit of a reduction in diarrheal diseases is 1: 5 43.