WASH Benefits Kenya
WASHB-Kenya
2 other identifiers
interventional
8,246
1 country
1
Brief Summary
The purpose of this study is to measure the independent and combined effects of interventions that improve sanitation, water quality, handwashing, and nutrition on child health and development in the first years of life.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Nov 2012
Longer than P75 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
October 5, 2012
CompletedFirst Posted
Study publicly available on registry
October 11, 2012
CompletedStudy Start
First participant enrolled
November 1, 2012
CompletedPrimary Completion
Last participant's last visit for primary outcome
July 1, 2016
CompletedStudy Completion
Last participant's last visit for all outcomes
July 1, 2016
CompletedJuly 12, 2018
July 1, 2018
3.7 years
October 5, 2012
July 10, 2018
Conditions
Keywords
Outcome Measures
Primary Outcomes (2)
Length-for-Age Z-scores
Child's recumbent length, standardized to Z-scores using the WHO 2006 growth standards, measured 24 months after intervention. Measurement techniques follow the FANTA 2003 protocol.
Measured 24 months after intervention
Diarrhea Prevalence
Diarrhea is defined as 3+ loose or watery stools in 24 hours or 1+ stools with blood in 24 hours. Diarrhea will be measured in interviews using caregiver-reported symptoms with 2-day and 7-day recall, measured 12 and 24 months after intervention.
Measured 12 and 24 months after intervention
Secondary Outcomes (4)
Length-for-Age Z-scores
Measured 12 months after intervention
Stunting Prevalence
Measured 24 months after intervention
Enteropathy Biomarkers
Measured 12- and 24 months after intervention
ASQ Child Development Scores
Measured 24 months after intervention
Other Outcomes (3)
Infection with ascaris, trichuris, hookworm, and giardia
Measured 24 months after interventions began
Hemoglobin concentration and anemia
Measured 24 months after interventions began
Micronutrient status, including iron, vitamin A, folate, and B12
Measured 24 months after interventions began
Study Arms (8)
Water Quality
ACTIVE COMPARATOR100 clusters, approximately 1,000 newborns
Sanitation
ACTIVE COMPARATOR100 clusters, approximately 1,000 newborns
Handwashing
ACTIVE COMPARATOR100 clusters, approximately 1,000 newborns
Combined Water, Sanitation, and Handwashing
ACTIVE COMPARATOR100 clusters, approximately 1,000 newborns
Nutrition
ACTIVE COMPARATOR100 clusters, approximately 1,000 newborns
Nutrition + Combined Water, Sanitation, and Handwashing
ACTIVE COMPARATOR100 clusters, approximately 1,000 newborns
Active control arm
NO INTERVENTION200 clusters, approximately 2,000 newborns. Village-level promoter will visit household and will strictly engage in recording the child's MUAC, which will also be conducted in all active comparator arms as well.
Passive control arm
NO INTERVENTION100 clusters, approximately 1,000 newborns. No intervention.
Interventions
Hardware: Chlorine dispensers provided for free at communal water sources. Promotion: Local promoters will visit study compounds at least monthly during the first year and bi-monthly thereafter to deliver behavior change messages that focus on the treatment of drinking water for all children living in the household.
Hardware: Free child potties, sani-scoop hoes to remove feces from household environments, and new or upgraded pit latrine for each study compound. Upgrades may include structural improvements, plastic slabs, and superstructure improvements. Promotion: Local promoters will visit study compounds at least monthly during the first year and bi-monthly thereafter to deliver behavior change messages that focus on the use of latrines for defecation and the removal of human and animal feces from the compound.
Hardware: Handwashing "dual tippy tap" stations, including jugs for clean and for soapy water. Handwashing stations will be stocked with soap for the duration of the trial. Promotion: Local promoters will visit study compounds at least monthly during the first year and bi-monthly thereafter to deliver behavior change messages that focus on handwashing with soap at critical times around food preparation, defecation, and contact with feces.
Supplement: Lipid-based Nutrient Supplement (LNS) twice daily from ages 6 to 24 months. Promotion: Local promoters will visit study compounds at least monthly during the first year and bi-monthly thereafter to deliver behavior change messages modeled on those recommended in the Guiding Principles for Complementary Feeding of the Breastfed Child and the recent UNICEF Program Guide for Infant and Young Child Feeding Practices. General messages will include (1) practice exclusive breastfeeding from birth to 6 months of age and introduce complementary foods at 6 months of age while continuing to breastfeed; (2) continue breast feeding as you did before receiving LNS; (3) provide your child micronutrient-rich foods such as meat, fish, eggs, and vitamin A rich fruits and vegetables; and (4) feed your child at least 2-3 times per day when 6-8 months old and 3-4 times per day when 9-24 months old.
Eligibility Criteria
You may qualify if:
- One or more women who self-identify as pregnant at the time of the baseline survey
- The woman plans to stay in the community for the next 12 months.
You may not qualify if:
- (1) The study excludes households who do not own their home to help mitigate attrition during follow-up.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Innovations for Poverty Actionlead
- Kenya Medical Research Institutecollaborator
- University of California, Berkeleycollaborator
- University of California, Daviscollaborator
- Tufts Universitycollaborator
- International Centre for Diarrhoeal Disease Research, Bangladeshcollaborator
Study Sites (1)
Innovations for Poverty Action, Kenya
Kisumu, P.O Box 2663, 40100, Kenya
Related Publications (17)
Haghighi P, Wolf PL. Tropical sprue and subclinical enteropathy: a vision for the nineties. Crit Rev Clin Lab Sci. 1997;34(4):313-41. doi: 10.3109/10408369708998096.
PMID: 9288443BACKGROUNDBorghi J, Guinness L, Ouedraogo J, Curtis V. Is hygiene promotion cost-effective? A case study in Burkina Faso. Trop Med Int Health. 2002 Nov;7(11):960-9. doi: 10.1046/j.1365-3156.2002.00954.x.
PMID: 12390603BACKGROUNDAlderman H, Hoddinott J, Kinsey B. Long term consequences of early childhood malnutrition. Oxford Economic Papers-New Series 2006;58:450-474.
BACKGROUNDCheckley W, Buckley G, Gilman RH, Assis AM, Guerrant RL, Morris SS, Molbak K, Valentiner-Branth P, Lanata CF, Black RE; Childhood Malnutrition and Infection Network. Multi-country analysis of the effects of diarrhoea on childhood stunting. Int J Epidemiol. 2008 Aug;37(4):816-30. doi: 10.1093/ije/dyn099. Epub 2008 Jun 20.
PMID: 18567626BACKGROUNDLorntz B, Soares AM, Moore SR, Pinkerton R, Gansneder B, Bovbjerg VE, Guyatt H, Lima AM, Guerrant RL. Early childhood diarrhea predicts impaired school performance. Pediatr Infect Dis J. 2006 Jun;25(6):513-20. doi: 10.1097/01.inf.0000219524.64448.90.
PMID: 16732149BACKGROUNDNiehaus MD, Moore SR, Patrick PD, Derr LL, Lorntz B, Lima AA, Guerrant RL. Early childhood diarrhea is associated with diminished cognitive function 4 to 7 years later in children in a northeast Brazilian shantytown. Am J Trop Med Hyg. 2002 May;66(5):590-3. doi: 10.4269/ajtmh.2002.66.590.
PMID: 12201596BACKGROUNDPetri WA Jr, Miller M, Binder HJ, Levine MM, Dillingham R, Guerrant RL. Enteric infections, diarrhea, and their impact on function and development. J Clin Invest. 2008 Apr;118(4):1277-90. doi: 10.1172/JCI34005.
PMID: 18382740BACKGROUNDBoissiere M, Knight JB, Sabot RH. Earnings, schooling, ability, and cognitive skills. American Economic Review 1985;75:1016-1030.
BACKGROUNDStewart CP, Arnold CD, Williams AM, Arnold BF, Pickering AJ, Dentz H, Kiprotich M, Lin A, Null C, Colford JM Jr, Dewey KG. Social Desirability Bias in a Randomized Controlled Trial That Included Breastfeeding Promotion in Western Kenya. Curr Dev Nutr. 2024 Sep 23;9(Suppl 1):103779. doi: 10.1016/j.cdnut.2024.103779. eCollection 2025 Feb.
PMID: 40454163DERIVEDPickering AJ, Njenga SM, Steinbaum L, Swarthout J, Lin A, Arnold BF, Stewart CP, Dentz HN, Mureithi M, Chieng B, Wolfe M, Mahoney R, Kihara J, Byrd K, Rao G, Meerkerk T, Cheruiyot P, Papaiakovou M, Pilotte N, Williams SA, Colford JM Jr, Null C. Effects of single and integrated water, sanitation, handwashing, and nutrition interventions on child soil-transmitted helminth and Giardia infections: A cluster-randomized controlled trial in rural Kenya. PLoS Med. 2019 Jun 26;16(6):e1002841. doi: 10.1371/journal.pmed.1002841. eCollection 2019 Jun.
PMID: 31242190DERIVEDStewart CP, Dewey KG, Lin A, Pickering AJ, Byrd KA, Jannat K, Ali S, Rao G, Dentz HN, Kiprotich M, Arnold CD, Arnold BF, Allen LH, Shahab-Ferdows S, Ercumen A, Grembi JA, Naser AM, Rahman M, Unicomb L, Colford JM Jr, Luby SP, Null C. Effects of lipid-based nutrient supplements and infant and young child feeding counseling with or without improved water, sanitation, and hygiene (WASH) on anemia and micronutrient status: results from 2 cluster-randomized trials in Kenya and Bangladesh. Am J Clin Nutr. 2019 Jan 1;109(1):148-164. doi: 10.1093/ajcn/nqy239.
PMID: 30624600DERIVEDByrd KA, Williams TN, Lin A, Pickering AJ, Arnold BF, Arnold CD, Kiprotich M, Dentz HN, Njenga SM, Rao G, Colford JM Jr, Null C, Stewart CP. Sickle Cell and alpha+-Thalassemia Traits Influence the Association between Ferritin and Hepcidin in Rural Kenyan Children Aged 14-26 Months. J Nutr. 2018 Dec 1;148(12):1903-1910. doi: 10.1093/jn/nxy229.
PMID: 30517728DERIVEDStewart CP, Kariger P, Fernald L, Pickering AJ, Arnold CD, Arnold BF, Hubbard AE, Dentz HN, Lin A, Meerkerk TJ, Milner E, Swarthout J, Colford JM Jr, Null C. Effects of water quality, sanitation, handwashing, and nutritional interventions on child development in rural Kenya (WASH Benefits Kenya): a cluster-randomised controlled trial. Lancet Child Adolesc Health. 2018 Apr;2(4):269-280. doi: 10.1016/S2352-4642(18)30025-7.
PMID: 29616236DERIVEDNull C, Stewart CP, Pickering AJ, Dentz HN, Arnold BF, Arnold CD, Benjamin-Chung J, Clasen T, Dewey KG, Fernald LCH, Hubbard AE, Kariger P, Lin A, Luby SP, Mertens A, Njenga SM, Nyambane G, Ram PK, Colford JM Jr. Effects of water quality, sanitation, handwashing, and nutritional interventions on diarrhoea and child growth in rural Kenya: a cluster-randomised controlled trial. Lancet Glob Health. 2018 Mar;6(3):e316-e329. doi: 10.1016/S2214-109X(18)30005-6. Epub 2018 Jan 29.
PMID: 29396219DERIVEDWilliams AM, Stewart CP, Shahab-Ferdows S, Hampel D, Kiprotich M, Achando B, Lin A, Null CA, Allen LH, Chantry CJ. Infant Serum and Maternal Milk Vitamin B-12 Are Positively Correlated in Kenyan Infant-Mother Dyads at 1-6 Months Postpartum, Irrespective of Infant Feeding Practice. J Nutr. 2018 Jan 1;148(1):86-93. doi: 10.1093/jn/nxx009.
PMID: 29378045DERIVEDWilliams AM, Chantry CJ, Young SL, Achando BS, Allen LH, Arnold BF, Colford JM Jr, Dentz HN, Hampel D, Kiprotich MC, Lin A, Null CA, Nyambane GM, Shahab-Ferdows S, Stewart CP. Vitamin B-12 Concentrations in Breast Milk Are Low and Are Not Associated with Reported Household Hunger, Recent Animal-Source Food, or Vitamin B-12 Intake in Women in Rural Kenya. J Nutr. 2016 May;146(5):1125-31. doi: 10.3945/jn.115.228189. Epub 2016 Apr 13.
PMID: 27075905DERIVEDArnold BF, Null C, Luby SP, Unicomb L, Stewart CP, Dewey KG, Ahmed T, Ashraf S, Christensen G, Clasen T, Dentz HN, Fernald LC, Haque R, Hubbard AE, Kariger P, Leontsini E, Lin A, Njenga SM, Pickering AJ, Ram PK, Tofail F, Winch PJ, Colford JM Jr. Cluster-randomised controlled trials of individual and combined water, sanitation, hygiene and nutritional interventions in rural Bangladesh and Kenya: the WASH Benefits study design and rationale. BMJ Open. 2013 Aug 30;3(8):e003476. doi: 10.1136/bmjopen-2013-003476.
PMID: 23996605DERIVED
Related Links
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Clair Null, PhD
Innovations for Poverty Action and Mathematica Policy Research
- PRINCIPAL INVESTIGATOR
Christine Stewart, PhD
University of California, Davis
- PRINCIPAL INVESTIGATOR
Amy Pickering, PhD
Tufts University
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- INVESTIGATOR
- Masking Details
- Analysts and lab technicians were masked to intervention status. Outcome collectors were not informed of intervention status, but could have inferred status from observing intervention hardware during household visits.
- Purpose
- PREVENTION
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Research Affiliate
Study Record Dates
First Submitted
October 5, 2012
First Posted
October 11, 2012
Study Start
November 1, 2012
Primary Completion
July 1, 2016
Study Completion
July 1, 2016
Last Updated
July 12, 2018
Record last verified: 2018-07