Kawasaki disease hospitalization rate among children younger than 5 years in California, 2003-2010.

In California, the 2010 annual Kawasaki disease hospitalization rate for children <5 years of age was higher than the rate in 2003. An increasing trend during 2003-2010 appears to be driven by an increase from 2003 to 2006, whereas the Kawasaki disease hospitalization rate remained stable through 2010.