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Excessive screen time linked to suicidal behaviors in US preteens

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Amidst the worsening teen mental health crisis and new legislation proposing to ban children under 16 from using social media, a new study finds that greater screen time among children 9-11 is associated with a higher risk of developing suicidal behaviors two years later.

The study, published in Preventive Medicine, finds that each additional hour of is associated with a 9% higher risk of reporting suicidal behavior two years later. In particular, each extra hour spent watching videos, playing video games, texting, and video chatting led to a higher risk of suicidal behavior.

"Screen usage could lead to , cyberbullying, and sleep disruption, which could worsen ," said senior author Jason Nagata, MD, assistant professor of pediatrics at the University of California, San Francisco. "More time on screens often displaces time for in person socializing, physical activity, and sleep."

The study builds upon the existing knowledge surrounding the youth mental health crisis. Suicide is the second leading cause of death among adolescents. The study extracts data from the nationwide Adolescent Brain Cognitive Development (ABCD) study, the largest long-term study of brain development in the United States. The study collected screen time data for 11,633 9-11 years who were followed for two years. The children answered questions about their time spent on six different screen time modalities as well as suicidal behaviors.

"The study was conducted mostly prior to the COVID-19 pandemic, but its findings are especially relevant now since youth mental health worsened during the pandemic," noted co-author Kyle T. Ganson, Ph.D., assistant professor at the University of Toronto's Factor-Inwentash Faculty of Social Work. The researchers had previously found that adolescent screen time doubled to nearly eight hours daily at the start of the pandemic in a study published in JAMA Pediatrics.

"Screen time can have important benefits such as education and socialization, but parents should try to mitigate adverse mental health risks from excessive screen time. Parents should regularly talk to their children about screen usage and role model screen behaviors," said Nagata.

More information: Jonathan Chu et al, Screen time and suicidal behaviors among U.S. children 9–11 years old: A prospective cohort study, Preventive Medicine (2023). DOI: 10.1016/j.ypmed.2023.107452

Citation: Excessive screen time linked to suicidal behaviors in US preteens (2023, February 27) retrieved 24 July 2024 from https://medicalxpress.com/news/2023-02-excessive-screen-linked-suicidal-behaviors.html
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