Spatial Scan Statistics Adjusted for Multiple Clusters

Table 5

Breast cancer mortality analysis for women in the Northeast United States, 1988–1992, using the standard and the sequential spatial scan statistics. RR = relative risk within the cluster compared to the rest of the Northeast; LLR: log likelihood ratio.

Method	Cluster	Location	Counties	Deaths	Expected	RR	LLR	$P$-value
	1	NYC-Philadelphia	32	24044	23040	1.07	35.7	0.0001
	2	Buffalo	4	1416	1280	1.11	7.1	0.12
Standard	3	Washington DC	1	712	618	1.15	6.9	0.15
	4	Boston	9	5966	5726	1.05	5.5	0.40
	5	Eastern Maine	3	267	229	1.17	3.0	0.99
	1	NYC-Philadelphia	32	24044	23040	1.07	35.7	0.0001
	2	Boston	9	5966	5565	1.07	16.8	0.0001
	3	Buffalo-Rochester	9	2362	2119	1.12	14.5	0.0004
Sequential	4	Baltimore-Washington	17	4255	3901	1.09	18.3	0.0001
	5	Pittsburgh	1	1765	1565	1.13	13.3	0.0002
	6	Albany	19	2336	2156	1.08	8.2	0.04
	7	Eastern Maine	3	267	210	1.27	7.2	0.07