Table 3.

Scores of the variables.

Variable	Score	Variable	Score	Variable	Score
Age (years)		M.stage		N.stage
<31	25	M0	0	N0	0
31-40	0	M1a	40	N1a	30
41-50	10	M1b	61	N1b	55
51-60	16	T.stage		N1c	41
61-70	21	T1	0	N2a	71
71-80	40	T2	27	N2b	93
81-90	71	T3	50	CEA
>90	100	T4a	80	Normal	0
Summary.stage		T4b	88	Positive	25
Localized	0	Chemotherapy		Liver metastasis
Regional	45	Yes	0	No	0
Distant	74	No	34	Yes	28