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Free Content Relative benefits of on‐plot water supply over other ‘improved’ sources in rural Vietnam

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Access to improved water sources is rapidly expanding in rural central Vietnam. We examined one NGO‐led piped water supply programme to assess the drinking water quality and health impacts of piped water systems where access to ‘improved’ water sources is already good.

This longitudinal, prospective cohort study followed 300 households in seven project areas in Da Nang province, Vietnam: 224 households who paid for an on‐plot piped water connection and 76 control households from the same areas relying primarily on ‘improved’ water sources outside the home. The 4‐month study was intended to measure the impact of the NGO‐led water programmes on households' drinking water quality and health and to evaluate system performance.

We found that: (i) households connected to a piped water supply had consistently better drinking water quality than those relying on other sources, including ‘improved’ sources and (ii) connected households experienced less diarrhoea than households without a piped water connection (adjusted longitudinal prevalence ratio: 0.57 (95% CI 0.39–0.86, P = 0.006) and households using an ‘improved’ source not piped to the plot: (adjusted longitudinal prevalence ratio: 0.59 (95% CI 0.39–0.91, P = 0.018).

Our results suggest that on‐plot water service yields benefits over other sources that are considered ‘improved’ by the WHO/UNICEF Joint Monitoring Programme.
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Language: French

Document Type: Research Article

Publication date: 2013-01-01

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