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Int J Pediatr Obes. 2009;4(1):61-4. doi: 10.1080/17477160802199992.

Dose-response associations between screen time and overweight among youth.

Author information

  • 1Centre for Physical Activity and Nutrition Research, Deakin University, Burwood Victoria, Australia. clare.hume@deakin.edu.au

Abstract

OBJECTIVE:

To examine dose-response associations between screen time and overweight, independent of physical activity and dietary intake.

METHODS:

Participants were 580 Dutch youth (13 years; 48% boys). Body mass index, waist circumference and skinfold thickness at four sites determined weight status. Questionnaires examined television viewing and computer use, participation in organized sport and high caloric snack and sugar-containing beverage consumption.

RESULTS:

There were no significant associations among boys. Compared with girls spending less than two hours/day in screen time, those who spent three to four hours/day were more likely to be classified as overweight by waist circumference (odds ratio [OR]=3.4; 95% confidence intervals [CI]=1.1-10.7; p=0.03), and this likelihood increased substantially among those spending more than four hours/day (OR=5.5; 95% CI=2.1-14.1; p<or=0.0001).

CONCLUSIONS:

Girls who spend three or more hours/day in screen time are at increased risk of being classified as overweight by waist circumference.

PMID:
18608632
[PubMed - indexed for MEDLINE]
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