Table 1.

Patient Characteristics

		TS expression type
	n	Low (3C/3C, 2R/3C, 2R/2R) n (%)	High (3G/3G, 3G/3C, 2R/3G) n (%)	p
Sex
Male	80	59 (73.8)	21 (26.2)	0.18
Female	65	54 (83.1)	11 (16.9)
Astler-Coller
B2	81	65 (80.2)	16 (19.8)	0.45
C	64	48 (75.0)	16 (25.0)
Grade
1/2	102	81 (79.4)	21 (20.6)	0.42
3	10	9 (90.0)	1 (10.0)
Tumor location
Right-side tumor	33	21 (63.6)	12 (36.4)	0.024
Left-side tumor	112	92 (82.1)	20 (17.9)
Tumor location
Rectum	54	49 (90.7)	5 (9.3)	0.0042
Colon	91	64 (70.3)	27 (29.7)
Chemotherapy
Yes	117	92 (78.6)	25 (21.4)	0.68
No	28	21 (75.0)	7 (25.0)
Age
<63	70	56 (80.0)	14 (20.0)	0.56
≥63	75	57 (76.0)	18 (24.0)

TS, thymidylate synthase.