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Associations between energy drink consumption and school attendance, academic attainment, and problem behaviour: a cross-sectional and longitudinal analysis

Lookup NU author(s): Dr Gareth Richards

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND).


Abstract

Background Some investigators have claimed that caffeinated energy drinks negatively impact children’s behaviour and academic attainment. The present study therefore investigated associations between energy drink use and school attendance, English and mathematics attainment, and the occurrence of behavioural sanctions (eg, detention).Methods Two cross-sections of data were collected at two timepoints (December, 2012; June, 2013). All children(n=3071) attending three secondary schools in the South West of England were invited to participate, and no specificinclusion or exclusion criteria were imposed. Questionnaires were used to record dietary and lifestyle information,and data relating to demography and school performance were acquired through the School Information Management System. Cross-sectional, cross-lag, and change score analyses were initially conducted with χ² tests. Binary logistic regression was then used to control for additional aspects of diet, demography, and lifestyle. The Cardiff University School of Psychology Ethics Committee granted ethics approval (EC.12.09.11.3187). All children and their parents gave written informed consent. The research was conducted in accordance with the Declaration of Helsinki.Findings 2030 children responded to the questionnaire at the first time point and 2307 at the second. Cross-sectional analyses showed that energy drink consumption was negatively associated with school performance. The effects appeared to be dose dependent. For example, relative to never using the products, each frequency of consumption was associated with below average English attainment at the second timepoint: “once a month” (odds ratio 1·6,95% CI 1·2–2·1), “once or twice a week” (1·9, 1·3–2·6), “most days (3–6)” (2·1, 1·3–3·5), “every day” (2·3, 1·1–4·9).Cross-lag analyses yielded similar results, though the effects were not significant at the multivariate level. Increasing frequency of energy drink usage between the two timepoints was predictive of not increasing in English and mathematics attainment, and with increasing in number of behavioural sanctions incurred. This last effect remained significant after covariates were controlled for (odds ratio 1·9, 95% CI 1·3–2·7, p=0·0003).Interpretation Energy drink consumption was consistently associated with low school performance. Although only some effects remained significant at the multivariate level, the results as a whole suggest that energy drinks might because for concern. Intervention studies are now required to better determine the nature of the associations observed.


Publication metadata

Author(s): Richards G, Smith AP

Publication type: Article

Publication status: Published

Journal: The Lancet

Year: 2016

Volume: 388

Issue: Suppl 2

Pages: S101

Online publication date: 25/11/2016

Acceptance date: 25/11/2016

Date deposited: 05/07/2018

ISSN (print): 0140-6736

ISSN (electronic): 1474-547X

Publisher: Elsevier

URL: https://doi.org/10.1016/S0140-6736(16)32337-6

DOI: 10.1016/S0140-6736(16)32337-6


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