ADHD cases have risen in the last 10 years - NBC Right Now/KNDO/KNDU Tri-Cities, Yakima, WA |

ADHD cases have risen in the last 10 years except in Mexican-Americans

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YAKIMA, Wash- ADHD is on the rise in the last 10 years.  The CDC says almost 10% of children have it.  But there's one nationality that's not following the trend. 

Since 1998, the number of children diagnosed with attention deficit hyperactivity disorder jumped from seven to nine percent.  Only Mexican-Americans didn't see a spike in cases.  Whites, blacks, and Puerto Ricans did.

The study also showed children who live in low-income households, or those who live in the South and Midwest are more likely to have ADHD.  Also, boys are more likely to have the disorder than girls according to this data.

Even though the numbers are higher over the last 10 years, researchers aren't sure if there are actually more cases, or if people are more aware of the condition.