Table 2.

Spatial scan statistic clusters. Approximate locations with elevated invasive and late-stage prostate or breast cancer incidence according to selected areal units of analysis, Connecticut, 1988–92.

	Geocoded Records	Coordinates (Lat.; Long.)	Area (km2)	Population at-risk	Cases in Cluster	0/E	Distance (km)	p-value
Prostate Cancer Incidence
Block Group	9,028
1		41.834; -72.727	1,504	254,092	2,651	1.28	Ref.	<0.0001
2		41.311; -72.878	0	345	19	7.62		<0.0001
3		41.472; -73.225	0	148	12	6.97		0.0060
4		41.497; -73.218	0	97	13	5.32		0.0316
Tract	9,825
1		41.823; -72.735	1,297	238,007	2,673	1.26	1.4	<0.0001
2		41.463; -72.153	0	1,461	33	3.35		<0.0001
Town	10,054
1		41.995; -72.454	6,104	286,450	2,947	1.22	11.1	<0.0001
Breast Cancer Incidence
Block Group
1	11,753	41.182; -73.510	573	85,084	952	1.22	Ref.	11,753
2		41.797; -72.775	115	27,066	391	1.31		0.0048
Tract	10,924
1		41.137; -73.391	854	147,066	1,554	1.21	11.2	<0.0001
2		41.787; -72.660	0	15	6	162.03		<0.0001
3		41.707; -72.647	87	32,358	401	1.26		0.0228
4		41.795; -72.756	64	20,737	284	1.31		0.0305
5		41.894; -72.368	0	2,137	34	2.34		0.0445
Town	12,518
1		41.960; -73.311	85	402	24	5.85	88.2	<0.0001
2		41.122; -73.346	584	87,795	1,009	1.14		0.0160
Late Stage Prostate Cancer Incidence
Place of Residence	7,672
1		41.486; -73.065	2,057	1,651	549	1.19	2.0	0.0070
2		41.061; -73.458	65	72	41	2.04		0.0135
Block Group	7,672
1		41.501; -73.078	2,218	1,696	563	1.19	Ref.	0.0029
2		41.054; -73.478	44	61	35	2.05		0.0246
Tract	8,346
1		41.480; -73.075	1,895	1,596	541	1.22	2.4	<0.0001
Town	8,514
1		41.489; -73.052	1,959	1,932	644	1.19	2.5	<0.0001
Late Stage Breast Cancer Incidence
Place of Residence	10,227	No significant clusters detected
Block Group	10,227	41.666; -72.776	center16	105	center68	1.61	Ref.	0.0092
1
Tract	10,395	No significant clusters detected
Town	11,854	No significant clusters detected