Adolescent substance use, sleep, and academic achievement: evidence of harm due to caffeine.
J Adolesc
; 34(4): 665-73, 2011 Aug.
Article
em En
| MEDLINE
| ID: mdl-20970177
ABSTRACT
Using academic achievement as the key outcome variable, 7377 Icelandic adolescents were surveyed for cigarette smoking, alcohol use, daytime sleepiness, caffeine use, and potential confounders. Structural equation modeling (SEM) was used to examine direct and indirect effects of measured and latent variables in two models the first with caffeine excluded and the second with caffeine included. A substantial proportion of variance in academic achievement, which might otherwise have been attributed to the harmful effects of cigarette smoking and alcohol use, was found to be attributable to caffeine. Evidence was obtained that daytime sleepiness, which was found to be independently associated with usage of licit substances (nicotine and alcohol) and caffeine, may be an important mediator of the negative impact of those substances on academic achievement. Findings suggest the importance of including measurements of caffeine consumption in future studies of adolescent substance use.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Sono
/
Cafeína
/
Transtornos Relacionados ao Uso de Substâncias
/
Estimulantes do Sistema Nervoso Central
Tipo de estudo:
Observational_studies
/
Prevalence_studies
/
Prognostic_studies
/
Risk_factors_studies
Limite:
Adolescent
/
Female
/
Humans
/
Male
País/Região como assunto:
Europa
Idioma:
En
Revista:
J Adolesc
Ano de publicação:
2011
Tipo de documento:
Article
País de afiliação:
Irlanda