Event rates were lower during oseltamivir-treated influenza periods and posttreatment periods vs. untreated influenza
However, nonmedical use decreased over time
Worse mental health seen with both e-cigarette and/or combustible tobacco product use
Black non-Hispanic teens less likely to complete treatment, while Hispanic, Asian, Native Hawaiian/Pacific Islander more likely than Whites
Prevalence of delta-9-tetrahydrocannabinol, cannabidiol, and synthetic cannabinoids vaping higher for girls than boys
However, handgun carrying in school, favorable attitudes toward handgun carrying in school, and handgun access decreased over time
Link to more depressive symptoms during early adolescence could potentially be due to shorter sleep and worse white matter organization
High or increasing trajectories of addictive use of social media, mobile phones, or video games are common among adolescents
Nearly one in three White teens report mental health visits, but this finding was significantly lower among teens from racial and ethnic minority groups
Since 2020, fatal synthetic opioid-only overdose rates higher than polydrug overdose rates involving synthetic opioids