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Environmental Health

, 11:41

First Online: 19 June 2012Received: 10 December 2011Accepted: 31 May 2012DOI: 10.1186-1476-069X-11-41

Cite this article as: George, C.M., van Geen, A., Slavkovich, V. et al. Environ Health 2012 11: 41. doi:10.1186-1476-069X-11-41

Abstract

ObjectiveTo reduce arsenic As exposure, we evaluated the effectiveness of training community members to perform water arsenic WAs testing and provide As education compared to sending representatives from outside communities to conduct these tasks.

MethodsWe conducted a cluster based randomized controlled trial of 20 villages in Singair, Bangladesh. Fifty eligible respondents were randomly selected in each village. In 10 villages, a community member provided As education and WAs testing. In a second set of 10 villages an outside representative performed these tasks.

ResultsOverall, 53% of respondents using As contaminated wells, relative to the Bangladesh As standard of 50 μg-L, at baseline switched after receiving the intervention. Further, when there was less than 60% arsenic contaminated wells in a village, the classification used by the Bangladeshi and UNICEF, 74% of study households in the community tester villages, and 72% of households in the outside tester villages reported switching to an As safe drinking water source . Switching was more common in the outside-tester 63% versus community-tester villages 44%. However, after adjusting for the availability of arsenic safe drinking water sources, well switching did not differ significantly by type of As tester Odds ratio =0.8695% confidence interval 0.42-1.77. At follow-up, among those using As contaminated wells who switched to safe wells, average urinary As concentrations significantly decreased.

ConclusionThe overall intervention was effective in reducing As exposure provided there were As-safe drinking water sources available. However, there was not a significant difference observed in the ability of the community and outside testers to encourage study households to use As-safe water sources. The findings of this study suggest that As education and WAs testing programs provided by As testers, irrespective of their residence, could be used as an effective, low cost approach to reduce As exposure in many As-affected areas of Bangladesh.

KeywordsArsenic Health educational intervention Bangladesh Electronic supplementary materialThe online version of this article doi:10.1186-1476-069X-11-41 contains supplementary material, which is available to authorized users.

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Autor: Christine Marie George - Alexander van Geen - Vesna Slavkovich - Ashit Singha - Diane Levy - Tariqul Islam - Kazi Matin A

Fuente: https://link.springer.com/







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