Table 1

Number of subjects and SMR1 of colon cancer and rectal cancer in 23 Prefectures, from northeastern to southwestern in order.

Prefecture
No. of
Survey year
Col SMR
Rec SMR

Subjects




Hokkaido
950
1989
108.0
104.9
Aomori
1631
1991
118.9
119.7
Miyagi
162
1989
89.8
109.8
Akita
1254
1987
118.1
107.8
Yamagata
1698
1990
113.0
97.9
Fukushima
632
1990
96.4
107.0
Gunma
928
1990
88.9
87.2
Tokyo
1319
1991
116.1
109.9
Toyama
957
1990
101.4
84.9
Nagano
3057
1989
91.8
88.4
Yamanashi
1642
1989
72.8
100.2
Niigata
2290
1989
97.7
109.3
Fukui
212
1987
78.4
70.0
Ishikawa
849
1987
102.
79.8
Shizuoka
1367
1989
82.7
97.8
Aichi
484
1991
104.9
103.9
Mie
700
1988
81.6
89.1
Kyoto
1523
1987
107.8
95.2
Hyogo
500
1988
103.8
97.8
Yamaguchi
1579
1990
93.8
100.5
Kochi
1211
1990
78.0
106.2
Fukuoka
1532
1989
108.4
98.0
Saga
1624
1989
92.3
93.3

1: Standardized mortality rate Col SMR: Colon cancer SMR; Rec SMR: Rectal cancer SMR

Nakaji et al. BMC Cancer 2001 1:14   doi:10.1186/1471-2407-1-14