Table 1.

Characteristics of patients.

Patient characteristics	Group 1	Group 2
No. of patients	25	114
Age, y (median, range)	59, 40–75	57, 25–83
Gender (male/female)	14/11	52/62
Tumor (T) stage (pTis + pT1 + pT2 + pT3 / pT4)	18/7	48/66
Nodal (N) status (negative/positive/Nx‡)	15/10	35/75/4
Distant metastases (M) (none detected/present)	18/7	80/34
Dukes' stage (A + B/C + D)	15/10	36/78
No. of lymph nodes analyzed (median, range)	10, 1–27	15, 0–40
Differentiation (well/moderate/poor)	2/18/5	10/74/30
Location (right side of colon/transverse colon/left side of colon/sigmoid colon/rectum)	7/2/3/9/4	23/6/8/24/53
Mucinous (colloid) adenocarcinoma (No/Yes)	2/23	4/110

Note:‡nodal status of four patients in Group 2.