The results of the study, which included 62,000 children, show head and burn injuries before two years of age may double the risk of ADHD diagnosis by 10 year of age.
The study suggests that usually injuries are an early sign of ADHD behavior. Some experts say that the study may help GPs to find children who need specialist referral.
Another previous study has already suggested that mild brain injury has links with behavioral changes in children.
Though there is a link between ADHD and head injury, it’s not clear which comes first, the researchers say.
In this current study, researchers from UK and US say that they have found higher rates of ADHD diagnosis in children who were treated for a head injury at younger age.
The researchers used data from more than 300 general practices from 1988 to 2003 and they noticed that these two types of injuries were related to greater rates of ADHD diagnosis than children without such injuries.
The study also discovered that those children who had a head injury after the age of two had higher chances of being diagnosed with ADHD before their 10th birthday.