Table 2.

Significant clusters found by the spatial scan statistic software for cardiovascular mortality in the Seoul metropolitan area of South Korea, 2008-2010

Year	Cluster label (n)	Population at risk	No. of case	Relative risk	Log likelihood ratio	p-value
2008	MC 1 (22)	7,456,536	6,774	1.17	55.68	<0.001
	MC 2 (3)	268,308	472	1.25	11.06	0.001
2009	MC 1 (8)	2,561,111	2,057	1.26	56.73	<0.001
	MC 2 (3)	277,285	521	1.38	23.96	<0.001
	MC 3 (2)	477,862	484	1.25	10.78	0.001
2010	MC 1 (8)	2,561,111	2,613	1.27	60.25	<0.001
	MC 2 (4)	318,580	600	1.26	14.65	<0.001
	MC 3 (5)	1,127,049	1,265	1.16	12.73	<0.001
2008-2010	MC 1 (8)	2,561,111	7,683	1.26	166.86	<0.001
	MC 2 (4)	318,580	1,780	1.27	46.18	<0.001
	MC 3 (5)	1,127,049	3,660	1.14	27.34	<0.001

MC, mortality cluster.