Table 5 Screen-detected cancer stage at presentation (values given as percentages and the denominator (n) from which they are derived)
First round % (n = 345)Second round % (n = 197)Third round % (n = 124)
Stage A49.240.136.3
Polyp cancer17.815.29.7
Stage B20.329.221.8
Stage C118.120.331.5
Stage C22.83.02.4
Stage D7.12.00.8
  • Stage A includes the polyp cancers. Dukes’ staging definitions: A, confined to bowel wall; B, through bowel wall; C1, paracolic lymph nodes only involved; C2, lymph nodes along named vessels involved; D, distant metastases.