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The impact of water consumption on hydration and cognition among schoolchildren: Methods and results from a crossover trial in rural Mali

Adequate provision of safe water, basic sanitation, and hygiene (WASH) facilities and behavior change can reduce pupil absence and infectious disease. Increased drinking water quantity may also improve educational outcomes through the effect of hydration on attention, concentration, and short-term m...

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Published in:PloS one 2019-01, Vol.14 (1), p.e0210568-e0210568
Main Authors: Chard, Anna N, Trinies, Victoria, Edmonds, Caroline J, Sogore, Assitan, Freeman, Matthew C
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description Adequate provision of safe water, basic sanitation, and hygiene (WASH) facilities and behavior change can reduce pupil absence and infectious disease. Increased drinking water quantity may also improve educational outcomes through the effect of hydration on attention, concentration, and short-term memory. A pilot study was conducted to adapt field measures of short-term cognitive performance and hydration, to evaluate levels of hydration, and to investigate the impact of providing supplementary drinking water on the cognitive performance of pupils attending water-scarce schools in rural Mali. Using a cross-over trial design, data were collected under normal school conditions (control condition) on one visit day; on the other, participants were given a bottle of water that was refilled throughout the day (water condition). Morning and afternoon hydration was assessed using specific gravity and urine color. Cognitive performance was evaluated using six paper-based tests. Three percent of pupils were dehydrated on the morning of each visit. The prevalence of dehydration increased in the afternoon, but was lower under the water condition. Although there was a trend indicating drinking water may improve cognitive test performance, as has been shown in studies in other settings, results were not statistically significant and were masked by a "practice effect."
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subjects Adolescent
Analysis
Biology and Life Sciences
Child
Children
Cognition
Cognition & reasoning
Cognition - physiology
Cognitive ability
Cross-Over Studies
Dehydration
Drinking - physiology
Drinking water
Ecology and Environmental Sciences
Elementary school students
Elementary schools
Female
Gravity
Health aspects
Humans
Hydration
Hygiene
Hygiene - standards
Infectious diseases
Male
Mali
Medicine and Health Sciences
Multivariate Analysis
People and Places
Pilot Projects
Psychological aspects
Sanitation
Sanitation - methods
Sanitation - standards
Schools
Short term memory
Social Sciences
Specific gravity
Statistical analysis
Students
Students - statistics & numerical data
Studies
Urine
Water consumption
Water supply
Water Supply - standards
Water Supply - statistics & numerical data
title The impact of water consumption on hydration and cognition among schoolchildren: Methods and results from a crossover trial in rural Mali
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