Television viewing as a cause of increasing obesity among children in the United States, 1986-1990.
Arch Pediatr Adolesc Med
; 150(4): 356-62, 1996 Apr.
Article
em En
| MEDLINE
| ID: mdl-8634729
ABSTRACT
BACKGROUND AND METHODS:
The prevalence of obesity among children and adolescents has increased, and television viewing has been suggested as a cause. We examined the relation between hours of television viewed and the prevalence of overweight in 1990, and the incidence and remission of overweight from 1986 to 1990 in a nationally representative cohort of 746 youths aged 10 to 15 years in 1990 whose mothers were 25 to 32 years old. Overweight was defined as a body mass index higher than the 85th percentile for age and gender.RESULTS:
We observed a strong dose-response relationship between the prevalence of overweight in 1990 and hours of television viewed. The odds of being overweight were 4.6 (95% confidence interval, 2.2 to 9.6) times greater for youth watching more than 5 hours of television per day compared with those watching 0 to 2 hours. When adjustments were made for previous overweight (in 1986), baseline maternal overweight, socioeconomic status, household structure, ethnicity, and maternal and child aptitude test scores, results were similar (odds ratio, 5.3; 95% confidence interval, 2.3 to 12.1). We also found significant relations between television viewing and increased incidence and decreased remission of overweight during this 4-year period, adjusted for baseline covariates. The adjusted odds of incidence were 8.3 (95% confidence interval, 2.6 to 26.5) times greater for youth watching more than 5 hours of television per day compared with those watching for 0 to 2 hours. Estimates of attributable risk indicate that more than 60% of overweight incidence in this population can be linked to excess television viewing time.CONCLUSION:
Television viewing affects overweight among youth, and reductions in viewing time could help prevent this increasingly common chronic health condition.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Televisão
/
Obesidade
Tipo de estudo:
Etiology_studies
/
Incidence_studies
/
Observational_studies
/
Prevalence_studies
/
Prognostic_studies
/
Risk_factors_studies
Limite:
Child
/
Female
/
Humans
/
Male
País/Região como assunto:
America do norte
Idioma:
En
Revista:
Arch Pediatr Adolesc Med
Assunto da revista:
PEDIATRIA
Ano de publicação:
1996
Tipo de documento:
Article
País de afiliação:
Estados Unidos