This article was originally published in The Notebook. In August 2020, The Notebook became Chalkbeat Philadelphia.
Percentage of lifetime cases of mental illness that start by age 14: 50%
Percentage of the population that will have a diagnosable mental disorder in their lifetime: 57%
Percentage of children 14 and older with mental illness who drop out of high school: 50%
Percentage of children and adolescents with mental disorders who are identified and receive mental health treatment in any given year: 20%
Percentage of children 9 to 17 who have a diagnosable mental or addictive disorder that causes some impairment: 21%
Percentage of children 9-17 with an anxiety disorder in any one year: 13%
Percentage of boys in juvenile detention who have at least one mental illness: 65%
Percentage of girls in juvenile detention who have at least one mental illness: 75%
Percentage of youths 12-17 who experienced at least one major depressive episode in the past year (2004 figures): 9%
Approximate percentage of school-age children with ADHD: 4%