Night-time screen-based media device use and adolescents' sleep and health-related quality of life.
Environ Int
; 124: 66-78, 2019 03.
Article
em En
| MEDLINE
| ID: mdl-30640131
ABSTRACT
OBJECTIVE:
The present study investigates the relationship between night-time screen-based media devices (SBMD) use, which refers to use within 1â¯h before sleep, in both lit and dark rooms, and sleep outcomes and health-related quality of life (HRQoL) among 11 to 12-year-olds.METHODS:
We analysed baseline data from a large cohort of 6616 adolescents from 39 schools in and around London, United Kingdom, participating in the Study of Cognition Adolescents and Mobile Phone (SCAMP). Adolescents self-reported their use of any SBMD (mobile phone, tablet, laptop, television etc.). Sleep variables were derived from self-reported weekday and/or weekend bedtime, sleep onset latency (SOL) and wake time. Sleep quality was assessed using four standardised dimensions from the Swiss Health Survey. HRQoL was estimated using the KIDSCREEN-10 questionnaire.RESULTS:
Over two-thirds (71.5%) of adolescents reported using at least one SBMD at night-time, and about a third (32.2%) reported using mobile phones at night-time in darkness. Night-time mobile phone and television use was associated with higher odds of insufficient sleep duration on weekdays (Odds Ratio, ORâ¯=â¯1.82, 95% Confidence Interval, CI [1.59, 2.07] and ORâ¯=â¯1.40, 95% CI [1.23, 1.60], respectively). Adolescents who used mobile phones in a room with light were more likely to have insufficient sleep (ORâ¯=â¯1.32, 95% CI [1.10, 1.60]) and later sleep midpoint (ORâ¯=â¯1.64, 95% CI [1.37, 1.95]) on weekends compared to non-users. The magnitude of these associations was even stronger for those who used mobile phones in darkness for insufficient sleep duration on weekdays (ORâ¯=â¯2.13, 95% CI [1.79, 2.54]) and for later sleep midpoint on weekdays (ORâ¯=â¯3.88, 95% CI [3.25, 4.62]) compared to non-users. Night-time use of mobile phones was associated with lower HRQoL and use in a dark room was associated with even lower KIDSCREEN-10 score (ßâ¯=â¯-1.18, 95% CI [-1.85, -0.52]) compared to no use.CONCLUSIONS:
We found consistent associations between night-time SBMD use and poor sleep outcomes and worse HRQoL in adolescents. The magnitude of these associations was stronger when SBMD use occurred in a dark room versus a lit room.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Qualidade de Vida
/
Sono
/
Tempo de Tela
Tipo de estudo:
Etiology_studies
/
Observational_studies
/
Prevalence_studies
/
Risk_factors_studies
Limite:
Adolescent
/
Female
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Humans
/
Male
País/Região como assunto:
Europa
Idioma:
En
Revista:
Environ Int
Ano de publicação:
2019
Tipo de documento:
Article