Table 1. Patient Demographics and Clinicopathologic Characteristics for the Training and Validation Sets.

Demographic or Clinical Characteristic	Traning Set (n = 34)		Validation Set (n = 81)		P
	No. Patients	%	No. Patients	%
Hospital
JHH			81
JHBH	34
Age, mean ± SD	65.3 ± 12.8		66.8 ± 11.6		0.573
Sex
Male	14	41.2	38	46.9
Female	20	58.8	43	53.1
Localization					0.665
Left colon	14	41.2	27	33.3
Right colon	15	44.1	43	53.1
Rectum	5	14.7	11	13.6
Tumor size, cm, mean + SD	4.7 ± 2.0		5.1 ± 2.5		0.402
Differentiation					0.261
Well and moderate	26	76.5	69	85.2
Poor	8	23.5	12	14.8
LNs examined, mean + SD	14.3 ± 6.2		14.3 ± 5.5		0.995
T4 tumors					0.101
Yes	6	17.6	6	7.4
No	28	82.4	75	92.6
Lymphovascular invasion					0.261
Yes	8	23.5	12	14.8
No	26	76.5	69	85.2
Mucin production					0.523
Yes	5	14.7	16	19.8
No	29	85.3	65	80.2
Recurrence					0.941
Yes	12	35.3	28	34.6
No	22	64.7	53	65.4
Recurrent type					1.000*
Local	2	16.7	5	17.9
Distant	10	83.3	23	82.1
Death					0.899
Yes	13	38.2	32	39.5
No	21	61.8	49	60.5
RFS, mo, mean + SD	61.0 ±41.2		59.0 ± 39.9		0.809

^*Fisher exact test.

SD indicates standard deviation.