Table 3

Dukes' stage of colorectal cancer in the screening and follow up phases

GroupTotalDuke's ADukes' BDukes' CDukes' DDukes' A+BDukes' C+D
*The difference between the Dukes' stage of tumours was significant (p<0.001). There were significantly more cases with tumours of Dukes' stage A+B in group 1 than group 2 (p<0.001) and group 3 (p=0.016).
†There was no difference in Dukes's stage between groups during follow up.
Screening phase
1138 (61.5)4 (30.7)1 (7.6)012 (92.3)* 1 (7.6)
26005 (83.3)1 (16.7) 0 6 (100.0)
371 (14.3)1 (14.3)3 (42.8)2 (28.6) 2 (28.6) 5 (71.4)
Follow up phase
1212 (9.5)12 (57.0)5 (23.7)2 (9.5)14 (66.5)† 7 (33.2)
2231 (4.3)12 (51.6)6 (25.8)4 (17.2)13 (55.9)10 (43.0)
3131 (7.7)5 (38.5)5 (38.5)2 (15.4) 6 (46.2) 7 (53.9)