WHO 18 January 2021
- Over 1.5 million adolescents and young adults aged 10–24 years died in 2019, nearly 5000 every day.
- Young adolescents aged 10–14 years have the lowest risk of death of all age groups.
- Injuries (including road traffic injuries and drowning), violence, self-harm and maternal conditions are the leading causes of death among adolescents and young adults
- Half of all mental health disorders in adulthood start by age 14, but most cases are undetected and untreated
- Early onset of substance use is associated with higher risks of developing dependence and other problems during adult life, and people of younger ages are disproportionately affected by substance use compared with people of older ages
- Globally, there are 43 births per 1000 to girls aged 15–19 years per year