Higher screen time tied to suicidal behaviors in preteens: Study

USA: Higher screen time among children aged 9-11 years is associated with higher odds of developing suicidal behaviors two years later, according to a recent study published in Preventive Medicine. 

The study finds that each additional hour of screen time 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 social isolation, cyberbullying, and sleep disruption, which could worsen mental health,” 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 children 9-11 years who were followed for two years. The children answered questions about their time spent on six different screen time modalities and suicidal behaviors.