Table 6

Effect of Dukes' stage on progastrin and amidated gastrin levels

Dukes' stage	Number	Median progastrin^6-150 (pmol/l)	Number (%) progastrin ⩽15 pmol/l	Median amidated gastrin^6-151(pmol/l)	Number (%) amidated gastrin ⩽4 pmol/l
A	7	22	3 (42.9)	20	3 (42.9)
B	21	24 (n=20)	5 (23.8)	11	4 (19.1)
C	27	42	6 (22.2)	12	3 (11.1)

↵6-150 There was no significant effect of Dukes' stage on progastrin levels (Kruskal-Wallis, p=0.2).
↵6-151 There was no significant effect of Dukes' stage on amidated gastrin levels (Kruskal-Wallis, p=1).