ADHD SCAM Breakthrough?

The first direct evidence of a genetic link to attention-deficit hyperactivity disorder has been found, a new study says.

The researchers compared genetic samples from ADHD children, with DNA from 1,047 people without the condition.

They found that 15% of the ADHD group had large and rare variations in their DNA – compared with 7% in the control group.

However, Dr. Oliver James said,  “Only 57 out of the 366 children with ADHD had the genetic variant supposed to be a cause of the illness. That would suggest that other factors are the main cause in the vast majority of cases. Genes hardly explain at all why some kids have ADHD and not others.”

So is this really a breakthrough or an attempt by researchers to get more ADHD research money? Has this just comfused parents even more??