Prevalence of hypohydration in adolescents during the school day in Cyprus: seasonal variations
Stavrinou PS, Giannaki CD, Andreou E, Aphamis G
Eastern Mediterranean health journal = La revue de sante de la Mediterranee orientale = al-Majallah al-sihhiyah li-sharq al-mutawassit · 5 citations
Review labels
Neutral facts our review recorded about how this study was done. They describe method, never whether we like the result.
How it was studied
- Design
- Cross-sectional study (classified by our AI screen)
- Studied in
- People
- Main outcome
- Health markers and function
Who paid for it
- Funding
- Funding not disclosed
Publication
- Published
- 2020-03-10 · East Mediterr Health J · vol. 26 · issue 9 · pp. 1034–1041
- Publisher
- World Health Organization
- Cited
- 8 citations · more than 55% of similar papers · 0.3× the field average
- References
- 27 works
- Access
- Open access (free to publish)
- Research areas
- Thermoregulation and physiological responses · Electrolyte and hormonal disorders · Sodium Intake and Health
- Keywords
- Alertness, Morning, Urine specific gravity, Medicine, Feeling, Cognition, Urine, Demography, Fluid intake, Pediatrics, Psychology, Internal medicine, Psychiatry
- MeSH
- humans, dehydration, prevalence, seasons, drinking, schools, adolescent, cyprus, male
4 authors
From CY
- Pinelopi S. Stavrinou · correspondingUniversity of Nicosia
- Christoforos D. GiannakiUniversity of Nicosia
- Eleni P. AndreouUniversity of Nicosia
- George AphamisUniversity of Nicosia
Abstract
Background
Evidence on the hydration status of adolescents and seasonal and time variations is scarce.
Aims
This study aimed to assess variations in the hydration status and total water intake of adolescents in Cyprus between winter and summer and between the morning and end of the school day. Subjective feelings and cognitive function associated with hypohydration were also examined.
Methods
Fifty-three adolescents (39 boys) with a mean age (standard deviation, SD) of 15.1 (1.9) years were included in the study. Participants provided urine samples and completed a cognitive function test and a questionnaire on subjective feelings upon arrival at school and at the end of the school day. Data were collected in winter and summer in 2016-2017. Hydration level was determined by urine specific gravity and cognitive function was assessed with a symbol cancellation test. Total water intake was estimated from a food and fluid record kept by the participants.
Results
A high prevalence of hypohydration was found in both seasons ranging from 72% to 94%. Hypohydration was associated with perceptions of lower concentration and alertness (P = 0.008 and P = 0.047, respectively). Adolescents had significantly higher mean urine specific gravity in winter than in summer: 1.026 (SD 0.007) versus 1.023 (SD 0.007), respectively (P = 0.002). Hydration status was not associated with cognitive function or total water intake.
Conclusions
The high prevalence of hypohydration and the associated feelings of lower concentration and alertness in adolescents suggests that educational measures are needed to promote good drinking behaviour and improve hydration.
Abstract via Europe PMC. Copyright remains with the authors or publisher.
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