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

Brown, Joe; Hien, Vo Thi; McMahan, Lanakila; Jenkins, Marion W.; Thie, Lauren; Liang, Kaida; Printy, E. R.; Sobsey, Mark D.

doi:10.1111/tmi.12010

Cited by 54 publications

(48 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…All other included studies used binary water variables in the analysis to compare households with on-plot and off-plot water supplies; some specified the water source types. Five studies investigated household use of multiple water sources; one reported exclusive use of the on-plot water source (Devoto et al, 2011), one reported rainwater as an alternative source (Dos Santos et al, 2015), and three reported use of multiple on-and off-plot sources (Brown et al, 2013;Henry, 1981;Wang et al, 1989).…”

Section: Type Of Water Sourcementioning

confidence: 99%

“…[ Figure 4] Among the ten rigorous studies on self-reported diarrhea, five studies found a significant association between on-plot water supplies and lower risk of diarrhea (Brown et al, 2013;Bukenya et al, 1991;Dos Santos et al, 2015;Molbak et al, 1997;van der Hoek et al, 2001). Households in Vietnam with on-plot water supplies had significantly lower longitudinal diarrhea prevalence than households with access to improved sources off plot (longitudinal prevalence ratio (LPR)=0.59, 95% CI: 0.39-0.91 (p=0.018)) (Brown et al, 2013).…”

Section: Diarrheal Diseasesmentioning

confidence: 99%

“…Households in Vietnam with on-plot water supplies had significantly lower longitudinal diarrhea prevalence than households with access to improved sources off plot (longitudinal prevalence ratio (LPR)=0.59, 95% CI: 0.39-0.91 (p=0.018)) (Brown et al, 2013). In Pakistan, odds of diarrhea were significantly higher for individuals lacking on-plot water supplies than for individuals with on-plot water (OR=1.52, 95% CI: 1.12-2.05) (van der Hoek et al, 2001).…”

Section: Diarrheal Diseasesmentioning

confidence: 99%

“…Quantity of water use was estimated by metered water use (Brown et al, 2013;Thomas et al, 2016), user estimates (Brown et al, 2013;Schemann et al, 2002), household logs (Thomas et al, 2016), number of filled containers (Henry, 1981), or unreported methods (Devoto et al, 2011;Ryder et al, 1985). Five studies found that households with on-plot water supplies used greater quantities of water (Brown et al, 2013;Henry, 1981;Ryder et al, 1985;Thomas et al, 2016) and greater quantities for hygiene (Devoto et al, 2011). An inverse relationship between distance to source and quantity of water used was reported in Mali (Schemann et al, 2002).…”

Section: Water Quantity Storage and Reliabilitymentioning

confidence: 99%

“…Eight studies used E. coli, fecal coliform, and/or total coliform counts to assess water quality and two studies did not describe the water quality test (Hollister et al, 1955;Watt et al, 1953). On-plot water supplies had less microbial contamination than improved and unimproved off-plot sources (Brown et al, 2013) and surface water collected off-plot (Wang et al, 1989); one reported the difference was statistically significant (Brown et al, 2013). The studies suggested water quality differences between sources, but one study sampled water stored in the household (Brown et al, 2013) and sampling procedures in the second were unclear (Wang et al, 1989).…”

Section: Water Qualitymentioning

confidence: 99%

See 4 more Smart Citations

On-plot drinking water supplies and health: A systematic review

Overbo

Williams

Evans

et al. 2016

International Journal of Hygiene and Environmental Health

View full text Add to dashboard Cite

Many studies have found that household access to water supplies near or within the household plot can reduce the probability of diarrhea, trachoma, and other water-related diseases, and it is generally accepted that on-plot water supplies produce health benefits for households. However, the body of research literature has not been analyzed to weigh the evidence supporting this. A systematic review was conducted to investigate the impacts of on-plot water supplies on diarrhea, trachoma, child growth, and water-related diseases, to further examine the relationship between household health and distance to water source and to assess whether on-plot water supplies generate health gains for households. Studies provide evidence that households with on-plot water supplies experience fewer diarrheal and helminth infections and greater child height. Findings suggest that water-washed (hygiene associated) diseases are more strongly impacted by on-plot water access than waterborne diseases. Few studies analyzed the effects of on-plot water access on quantity of domestic water used, hygiene behavior, and use of multiple water sources, and the lack of evidence for these relationships reveals an important gap in current literature. The review findings indicate that on-plot water access is a useful health indicator and benchmark for the progressive realization of the Sustainable Development Goal target of universal safe water access as well as the human right to safe water.

show abstract

Section: Type Of Water Sourcementioning

confidence: 99%

Section: Diarrheal Diseasesmentioning

confidence: 99%

Section: Diarrheal Diseasesmentioning

confidence: 99%

Section: Water Quantity Storage and Reliabilitymentioning

confidence: 99%

Section: Water Qualitymentioning

confidence: 99%

See 3 more Smart Citations

On-plot drinking water supplies and health: A systematic review

Overbo

Williams

Evans

et al. 2016

International Journal of Hygiene and Environmental Health

View full text Add to dashboard Cite

show abstract

Interventions to improve water, sanitation, and hygiene for preventing soil-transmitted helminth infection

Freeman

Strunz

Utzinger

et al. 2016

Cochrane Database of Systematic Reviews

View full text Add to dashboard Cite

show abstract

Interventions to improve water, sanitation, and hygiene for preventing soil-transmitted helminth infection

Garn

Wilkers

Meehan

et al. 2022

Cochrane Database of Systematic Reviews

View full text Add to dashboard Cite

Background It is estimated that 1.5 billion people are infected with soil‐transmitted helminths (STHs) worldwide. Re‐infection occurs rapidly following deworming, and interruption of transmission is unlikely without complementary control efforts such as improvements in water, sanitation, and hygiene (WASH) access and behaviours. Objectives To assess the effectiveness of WASH interventions to prevent STH infection. Search methods We used standard, extensive Cochrane search methods. The latest search date was 19 October 2021. Selection criteria We included interventions to improve WASH access or practices in communities where STHs are endemic. We included randomized controlled trials (RCTs), as well as trials with an external control group where participants (or clusters) were allocated to different interventions using a non‐random method (non‐RCTs). We did not include observational study designs. Our primary outcome was prevalence of any STH infection. Prevalence of individual worms was a secondary outcome, including for Ascaris lumbricoides , Trichuris trichiura , hookworm ( Ancylostoma duodenale or Necator americanus ), or Strongyloides stercoralis . Intensity of infection, measured as a count of eggs per gram of faeces for each species, was another secondary outcome. Data collection and analysis Two review authors independently reviewed titles and abstracts and full‐text records for eligibility, performed data extraction, and assessed risk of bias using the Cochrane risk of bias assessment tool for RCTs and the EPOC tool for non‐RCTs. We used a random‐effects meta‐analysis to pool study estimates. We used Moran’s I² statistic to assess heterogeneity and conducted subgroup analyses to explore sources of heterogeneity. We assessed the certainty of the evidence using the GRADE approach. Main results We included 32 studies (16 RCTs and 16 non‐RCTs) involving a total of 52,944 participants in the review. Twenty‐two studies (14 RCTs (16 estimates) and eight non‐RCTs (11 estimates)) reported on our primary outcome, prevalence of infection with at least one STH species. Twenty‐one studies reported on the prevalence of A lumbricoides (12 RCTs and 9 non‐RCTs); 17 on the prevalence of T trichiura (9 RCTs and 8 non‐RCTs); 18 on the prevalence of hookworm (10 RCTs and 8 non‐RCTs); and one on the prevalence of S stercoralis (1 non‐RCT). Sixteen studies measured the intensity of infection for an individual STH type. Ten RCTs and five non‐RCTs reported on the intensity of infection of A lumbricoides ; eight RCTs and five non‐RCTs measured the intensity of infection of T trichiura ; an...

show abstract

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

Cited by 54 publications

References 26 publications

On-plot drinking water supplies and health: A systematic review

On-plot drinking water supplies and health: A systematic review

Interventions to improve water, sanitation, and hygiene for preventing soil-transmitted helminth infection

Interventions to improve water, sanitation, and hygiene for preventing soil-transmitted helminth infection

Contact Info

Product

Resources

About