Table 2. Comparison of incidence rates of KD in children younger than 5 years of age (No./ 100,000).

Year	Incidence rate in the surveys by the Korean Pediatric Heart Society (6-8)	Incidence rate in this study	Incidence rate in the surveys by the Japan Kawasaki Disease Research Committee (3-5)
2004	106.4		174.0
2005	104.6		181.1
2006	108.7		188.1
2007	118.3	168.3	215.3
2008	112.5	159.1	218.6
2009	115.4	167.3	206.2
2010	132.9	190.4	239.6
2011	134.4	188.2	243.1
2012		190.2	264.8
2013		210.4
2014		217.2