Table 3

Age-specific colorectal cancer detection data from Minnesota Colon Cancer Control Study with biennial screening


number detected
number at risk



age
F
I
S
R*
C*
F
I
S
R*
C*

50
1
0
0
0
0
891
1015
658
102
1377
52
0
3
1
0
0
997
1789
1410
196
2510
54
2
1
1
0
3
1047
2594
2139
291
3723
56
1
1
2
1
5
1141
2986
2521
405
4979
58
1
2
3
1
12
1145
3279
2754
483
6212
60
2
1
3
1
11
1230
4227
3717
590
7508
62
3
6
3
3
19
1295
5123
4543
688
8774
64
6
2
3
2
26
1267
5914
5328
783
9734
66
5
5
7
3
43
1160
5924
5387
813
9821
68
3
2
7
4
30
961
5740
5240
822
9548
70
3
8
5
2
36
761
5253
4881
821
8958
72
4
10
4
4
39
621
4640
4307
787
8097
74
3
10
2
0
35
460
4171
3871
727
7133

F = first screen, I = interval between screens, S = subsequent screen, R = refuser, C = control * data excluded for PSE with only screened subjects

Baker et al. BMC Medical Research Methodology 2003 3:4   doi:10.1186/1471-2288-3-4