Evidence map›Paper›PMID 32228789›Full record

Trial reportThe American journal of tropical medicine and hygiene2020

Effects of Individual and Combined Water, Sanitation, Handwashing, and Nutritional Interventions on Child Respiratory Infections in Rural Kenya: A Cluster-Randomized Controlled Trial.

Jenna Swarthout, Pavani K Ram, Charles D Arnold, Holly N Dentz, Benjamin F Arnold, Stephen Kalungu, Audrie Lin, Sammy M Njenga, Christine P Stewart, John M Colford and 2 more

Open access · hybridAbstract readRandomized Controlled Trial
In one paragraph

Trial report in The American journal of tropical medicine and hygiene, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
1.4field-weighted citation impact, top 20% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

11 citing papers in PubMed, 1 synthesis or guideline pooled it, 24 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

12 authors at 8 institutions in 2 countries.

Jenna SwarthoutCivil and Environmental Engineering, Tufts University, Medford, Massachusetts.
Pavani K RamEpidemiology and Environmental Health, University at Buffalo, Buffalo, New York.
Charles D ArnoldDepartment of Nutrition, University of California, Davis, Davis, California.
Holly N DentzDepartment of Nutrition, University of California, Davis, Davis, California.
Benjamin F ArnoldFrancis I. Proctor Foundation, University of California, San Francisco, California.
Stephen KalunguInnovations for Poverty Action, Nairobi, Kenya.
Audrie LinDepartment of Epidemiology and Biostatistics, University of California, Berkeley, Berkeley, California.
Sammy M NjengaKenya Medical Research Institute, Nairobi, Kenya.
Christine P StewartDepartment of Nutrition, University of California, Davis, Davis, California.
John M ColfordDepartment of Epidemiology and Biostatistics, University of California, Berkeley, Berkeley, California.
Clair NullCenter for International Policy Research and Evaluation, Mathematica Policy Research, Washington, District of Columbia.
Amy J PickeringCivil and Environmental Engineering, Tufts University, Medford, Massachusetts.
University of California, Davis · USTufts University · USUniversity of California, Berkeley · USKenya Medical Research Institute · KEMathematica Policy Research · USPractical Action · KESan Francisco Foundation · USUniversity at Buffalo, State University of New York · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Poor nutrition and hand hygiene are risk factors for acute respiratory infections (ARIs). Safe drinking water and sanitation can reduce exposure to pathogens and encourage healthy immune responses, reducing the risk of ARIs. Within a trial assessing impacts of water, sanitation, and handwashing (WASH), and nutritional interventions, we evaluated effects on ARIs. The WASH Benefits cluster-randomized trial enrolled pregnant women from Kenyan villages and evaluated health outcomes in children born to enrolled mothers 1 and 2 years after intervention delivery. Geographically adjacent clusters were block-randomized into a passive control (no promotional visits), a double-sized active control (monthly visits to measure mid-upper arm circumference), and six intervention groups: chlorinated drinking water (W), improved sanitation (S), handwashing with soap (H), combined WSH, improved nutrition (N) through counseling and lipid-based nutrient supplementation (LNS), and combined WSHN. The main outcome was the prevalence of ARI symptoms (cough, panting, wheezing, or difficulty breathing) in children younger than 3 years. Masking participants was not possible. Analyses were intention-to-treat. Between November 2012 and May 2014, 702 clusters were enrolled, including 6,960 (year 1) and 7,088 (year 2) children with ARI data. The cluster-level intra-cluster correlation coefficient for ARIs was 0.026 across both years. Water, sanitation, and handwashing interventions with behavior change messaging did not reduce ARIs. Nutrition counseling and LNS modestly reduced ARI symptoms compared with controls in year 1 [prevalence ratio (PR): 0.87, 95% confidence interval (CI): 0.77-0.99], but no effect in the combined WSHN group weakens this finding.

Indexed as

Child Nutritional Physiological PhenomenaHand DisinfectionSanitationWater PurificationWater SupplyAdultChildChild DevelopmentChild, PreschoolCluster AnalysisFemaleHumansKenyaMaleNutritional StatusRespiratory Tract Infections

Identifiers

PMID32228789
PMCPMC7253138
OpenAlexW3013124704

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.