The researchers found that direct child TV exposure and household TV use were both significantly associated with childhood aggression, after accounting for other factors such as parent, family, neighbourhood and demographic characteristics.
"One explanation that could link both child and household TV measures with aggression involves the parenting environment," the authors said.
Households with higher rates of TV use may have fewer restrictions on children's viewing habits such as exposure to unregulated television content.
Increased household television use may also affect daily routines such as eating and communication patterns and may decrease time spent on other activities.
The study has been published in the November issue of Archives of Paediatrics and Adolescent Medicine, one of the JAMA/Archives ournals.
Source-ANI
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