A recent study has found that, between 2001 to 2010, pediatric ADHD diagnoses jumped 67% in blacks, 60% in Hispanics, and 30% in whites, yet they remained unchanged and low in Asians and Pacific Islanders

Throughout the entire study, white children had the highest rates of ADHD diagnosis. However, the largest increases in diagnosis rates were seen in black and Hispanic children. From 2001 to 2010, the ADHD diagnosis rate in whites rose from 4.7% to 5.6%; in blacks it rose from 2.6% to 4.1%; and in Hispanics, the rate rose from 1.7% to 2.5%. Although, overall, boys were more likely to be diagnosed than girls, researchers attributed the increase in diagnosis in blacks to an increasing likelihood of diagnosis in black girls specifically.