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Table 2 Age-specific colorectal cancer detection data from Minnesota Colon Cancer Control Study with annual screening

From: Using observational data to estimate an upper bound on the reduction in cancer mortality due to periodic screening

  number detected number at risk
age F I S R* C* F I S R* C*
50 0 0 0 0 0 397 527 418 71 818
51 0 0 0 0 0 492 919 821 122 1377
52 0 0 0 0 0 518 1311 1186 165 1973
53 0 0 2 0 0 502 1675 1542 211 2509
54 0 2 2 0 1 536 2058 1923 248 3093
55 1 0 0 0 2 535 2251 2092 307 3711
56 0 0 2 1 3 551 2318 2157 359 4355
57 1 0 0 0 2 602 2442 2270 395 4965
58 0 1 1 0 6 603 2550 2405 446 5567
59 1 0 0 0 6 573 2820 2652 482 6189
60 0 2 2 0 5 651 3350 3125 527 6840
61 2 0 4 1 6 637 3823 3633 584 7480
62 1 0 5 1 11 655 4273 4077 633 8151
63 2 0 2 0 8 651 4747 4563 684 8770
64 2 1 7 3 7 635 5138 4910 719 9314
65 1 2 4 1 19 613 5231 5032 760 9854
66 2 1 4 0 26 596 5313 5124 779 10196
67 2 0 8 1 17 574 5318 5136 765 10185
68 2 2 3 1 19 501 5170 4998 767 10081
69 2 2 4 0 11 429 4944 4761 754 9911
70 1 1 2 3 18 411 4831 4673 753 9706
71 3 2 2 5 18 380 4658 4500 743 9376
72 0 1 5 5 15 313 4376 4243 730 8979
73 1 1 7 2 24 271 4140 4029 713 8474
74 0 0 7 1 22 252 3865 3746 673 8013
75 2 1 4 2 13 206 3574 3492 664 7512
  1. F = first screen, I = interval between screens, S = subsequent screen, R = refuser, C = control * data excluded for PSE with only screened subjects