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    Explaining low rates of sustained use of siphon water filter: evidence from follow-up of a randomised controlled trial in Bangladesh

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    Date
    2015
    Publisher
    © 2015 Blackwell Publishing Ltd.
    Author
    Najnin, Nusrat
    Arman, Shaila
    Abedin, Jaynal
    Unicomb, Leanne
    Levine, David
    Mahmud, Minhaj
    Leder, Karin
    Yeasmin, Farzana
    E. Luoto, Jill
    Albert, Jeff
    P. Luby, Stephen
    Metadata
    Show full item record
    URI
    http://hdl.handle.net/10361/7500
    Citation
    Najnin, N., Arman, S., Abedin, J., Unicomb, L., Levine, D. I., Mahmud, M., . . . Luby, S. P. (2015). Explaining low rates of sustained use of siphon water filter: Evidence from follow-up of a randomised controlled trial in bangladesh. Tropical Medicine and International Health, 20(4), 471-483. doi:10.1111/tmi.12448
    Abstract
    Objective: To assess sustained siphon filter usage among a low-income population in Bangladesh and study relevant motivators and barriers. Methods: After a randomised control trial in Bangladesh during 2009, 191 households received a siphon water filter along with educational messages. Researchers revisited households after 3 and 6 months to assess filter usage and determine relevant motivators and barriers. Regular users were defined as those who reported using the filter most of the time and were observed to be using the filter at follow-up visits. Integrated behavioural model for water, sanitation and hygiene (IBM-WASH) was used to explain factors associated with regular filter use. Results: Regular filter usage was 28% at the 3-month follow-up and 21% at the 6-month follow-up. Regular filter users had better quality water at the 6-month, but not at the 3-month visit. Positive predictors of regular filter usage explained through IBM-WASH at both times were willingness to pay >US$1 for filters, and positive attitude towards filter use (technology dimension at individual level); reporting boiling drinking water at baseline (psychosocial dimension at habitual level); and Bengali ethnicity (contextual dimension at individual level). Frequently reported barriers to regular filter use were as follows: considering filter use an additional task, filter breakage and time required for water filtering (technology dimension at individual level). Conclusion: The technological, psychosocial and contextual dimensions of IBM-WASH contributed to understanding the factors related to sustained use of siphon filter. Given the low regular usage rate and the hardware-related problems reported, the contribution of siphon filters to improving water quality in low-income urban communities in Bangladesh is likely to be minimal.
    Keywords
    Integrated behavioural model for water; Sanitation and hygiene; Siphon water filters; Usage barriers; Drinking water
     
    Description
    This article was published in Tropical Medicine and International Health [© 2015 Blackwell Publishing Ltd.] and the definite version is available at: http://www.pubpdf.com/pub/25495859/Explaining-low-rates-of-sustained-use-of-siphon-water-filter-evidence-from-follow-up-of-a-randomised
    Publisher Link
    http://www.pubpdf.com/pub/25495859/Explaining-low-rates-of-sustained-use-of-siphon-water-filter-evidence-from-follow-up-of-a-randomised
    DOI
    http://doi.org/10.1111/tmi.12448
    Department
    James P Grant School of Public Health, BRAC University
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