Calculations: October is ADHD Awareness Month

October 2015   Comments

1 in 20: Number of children worldwide with attention deficit hyperactivity disorder (source)

9%: Percentage of boys under 18 who have ADHD (source)

3.5%: Percentage of girls under 18 who have ADHD (source)

3: Number of times more likely a teenager with ADHD will drop out of high school (source)

60%: Percentage of children with ADHD who are still affected by symptoms in adulthood (source)

4%: Percentage of adults with ADHD (source)

90%: Percentage of adults with ADHD that remains untreated (source)

2: Number of times more likely a person with ADHD will have an injury, particularly a head injury or fracture (source)

12 million: Estimated number of lost workdays to ADHD in Canada (source)

>$7 billion: Potential cost of illness associated with ADHD in Canada across all ages (source)

1902: The year ADHD was first clearly described (source)

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