Table 3

Spatial scan statistics for detecting local clusters in smoothed RR's

Cancer site
Cluster type*
p-value
No. Cases
No. Expected
Mean inside**
Mean outside**
Location

Esophageal; Both Sexes
M
0.001
459
257.0
1.74
0.82
Azadshahr, Gonbad, Kolaleh, Minoodasht

S
0.001
147
107.3
1.51
0.94
Savadkouh
Esophageal; Male
M
0.001
227
137.9
1.59
0.81
Azadshahr, Gonbad, Kolaleh, Minoodasht

S
0.001
24
13.7
1.41
0.91
Savadkouh
Esophageal; Female
M
0.001
232
119.1
1.83
0.84
Azadshahr, Gonbad, Kolaleh, Minoodasht

S
0.001
123
93.6
1.29
0.97
Babol, Savadkouh
Stomach; Both Sexes
M
0.001
1262
1038.6
1.51
0.80
Amol, Babol, Ghaemshahr, Jouybar, Sari, Savadkouh

S
0.001
333
235.9
1.34
0.93
Gonbad, Minoodasht

S
0.001
167
136.2
1.20
0.94
Ramsar, Tonekabon
Stomach; Male
M
0.001
951
769.2
1.42
0.79
Amol, Babol, Ghaemshahr, Jouybar, Sari, Savadkouh

S
0.001
206
168.8
1.17
0.92
Gonbad, Minoodasht

S
0.001
114
97.2
1.14
0.92
Ramsar, Tonekabon
Stomach; Female
M
0.001
311
269.4
1.64
0.85
Amol, Babol, Ghaemshahr, Jouybar, Sari, Savadkouh

S
0.001
101
44.5
2.14
0.99
Gonbad

S
0.001
53
39.0
1.28
1.02
Ramsar, Tonekabon
Colorectal; Both Sexes
M
0.001
80
56.1
1.46
0.85
Ramsar, Tonekabon

S
0.001
449
350.6
1.18
0.81
Babol, Babolsar, Ghaemshahr, Jouybar, Mahmoudabad, Sari

S
0.001
147
83.8
1.67
0.87
Gorgan
Colorectal; Male
M
0.001
289
219.9
1.26
0.78
Amol, Babol, Babolsar, Behshahr, Ghaemshahr, Jouybar

S
0.001
81
44.8
1.65
0.86
Gorgan

S
0.001
13
8.1
1.38
0.87
Ramsar
Colorectal; Female
M
0.001
45
26.2
1.61
0.85
Ramsar, Tonekabon

S
0.001
66
39.1
1.53
0.88
Gorgan

S
0.001
213
173.8
1.16
0.85
Amol, Babol, Ghaemshahr, Sari, Savadkouh
Liver; Both Sexes
M
0.001
12
5.2
1.91
0.84
Gorgan

S
0.001
16
10.9
1.33
0.84
Ghaemshahr, Sari

S
0.001
3
0.9
1.17
0.87
Ramsar
Liver; Male
M
0.001
20
8.7
1.68
0.86
Gorgan

S
0.001
30
18.1
1.28
0.86
Ghaemshahr, Sari
Liver; Female
M
0.001
3
0.9
2.00
1.03
Ramsar

S
0.001
12
5.2
1.78
1.04
Gorgan

S
0.001
12
7.7
1.14
1.06
Sari, Savadkouh
Pancreas; Both Sexes
M
0.001
12
7.8
1.95
0.91
Jouybar, Sari
Pancreas; Male
M
0.001
15
5.0
1.21
1.01
Jouybar, Sari

* M = most likely cluster; S = Secondary cluster.

** Mean of smoothed RR in wards inside and outside the circles generated by Sat Scan analysis.

Mohebbi et al. BMC Cancer 2008 8:137   doi:10.1186/1471-2407-8-137