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Children with a TV in their bedroom at higher risk for being overweight
A M Adachi-Mejia1, M R Longacre, J J Gibson
1Community Health Research Program, Hood Center for Children and Families, Dartmouth Medical School, Lebanon, NH 03756-0001, USA. anna.adachi-mejia@dartmouth.edu
Insights
Having a TV in the bedroom increases the risk of child overweight, even after accounting for other factors. This study highlights a significant association between bedroom televisions and higher body mass index (BMI) in children.
Area of Science:
- Pediatric Health
- Obesity Research
- Environmental Health
Background:
- Childhood overweight is a significant public health concern with long-term health implications.
- The home environment, including bedroom characteristics, may play a role in the development of childhood obesity.
Purpose of the Study:
- To investigate the association between having a television in the bedroom and the risk of overweight in children.
- To determine if this association persists after controlling for potential confounding factors.
Main Methods:
- A cross-sectional study involving 2,343 children aged 9-12 years and their parents.
- Data collected via school- and telephone-based surveys.
- Child overweight defined by age- and gender-standardized body mass index (zBMI) at or above the 95th percentile.
Main Results:
- 22.3% of children were overweight; 48.2% had a TV in their bedroom.
- Children with a bedroom TV had significantly higher zBMI and were more likely to be overweight.
- After adjusting for covariates, bedroom TV remained a risk factor for overweight (OR=1.32).
Conclusions:
- Having a TV in the bedroom is an independent risk factor for child overweight.
- The mechanism linking bedroom TVs to overweight requires further investigation.
- This finding suggests a need for parental guidance on bedroom media environments.
Objective:
We examined having a TV in the bedroom as a risk factor for child overweight.
Design:
Cross-sectional study.
Setting:
School- and telephone-based surveys in New Hampshire and Vermont between 2002 and 2004.
Participants:
Two thousand three hundred and forty-three children enrolled in public schools, aged 9-12 years, and one of their parents.
Main Exposures:
The child having a TV in the bedroom.
Main Outcome Measures:
Age- and gender-standardized child body mass index (zBMI). Overweight was defined as equal to or above the 95th percentile for zBMI.
Results:
Overall, 22.3% (N=523) of the children were overweight, and almost half of all children (48.2%, N=1130) had a TV in their bedroom. Children with a TV in their bedroom had a higher zBMI and were significantly more likely to be overweight compared to those without a TV in their bedroom (27.3 versus 17.7%, respectively; P<0.05). After controlling for sociodemographics, physical activity, frequency of TV or movie watching and internet use, children with a TV in their bedroom who watched at least one session of TV or movies per day were more likely to be overweight compared to those without a TV in their bedroom (odds ratio=1.32, 95% confidence interval: 1.03, 1.70).
Conclusions:
Having a TV in the bedroom is a risk factor for child overweight, independent of reported physical activity, participation in team sports, TV or movie watching time and internet use at home. Further study is needed to fully understand the mechanism by which having a TV in the bedroom increases children's risk for overweight.
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