By Liz Szabo
August 17, 2010
Kids who are the youngest in their grades are 60% more likely to be diagnosed with ADHD than the oldest children, according to a study out today from Michigan State University, given exclusively to USA TODAY. A second study, by researchers at North Carolina State University and elsewhere, came to similar conclusions. Both are scheduled for publication in the Journal of Health Economics.
About 4.5 million children have been diagnosed with ADHD, according to the studies.
Misdiagnosing children can have long-lasting effects, says assistant professor of economics Todd Elder, author of the Michigan State study. In fifth and eighth grade, the youngest kids in a class were more than twice as likely to use Ritalin, a stimulant commonly prescribed for ADHD, compared with the oldest students, his study says.
While many parents say Ritalin has helped their kids, it also can have significant side effects, causing headaches, dizziness and even high blood pressure, according to the paper from North Carolina State.
The findings could influence the way that teachers evaluate children with ADHD symptoms — as well as complicate parents’ decisions about when to start children in kindergarten, Elder says.
Read entire article here: http://www.usatoday.com/news/health/2010-08-17-1Aadhd17_ST_N.htm