The study included 111 men who had been diagnosed with ADHD during childhood. The researchers followed these men at ages 18, 25 and 41 and found that 41% of them were obese by the time they entered adulthood.
An average BMI of 30.1 was observed in the obese men at the age of 41 years as compared to a BMI of 27.6 in the control group.
"That really seems to be reflective of their early hyperactivity. It doesn't matter what their current diagnosis is so much, so we think these are longstanding issues that likely arose in early adolescence," study co-author Dr. Francisco Xavier Castellanos, a professor of child and adolescent psychiatry in the Child Study Center at NYU Langone Medical Center in New York City, told HealthDay.
The study details are published in the journal Pediatrics.