Table 1.

Univariate analysis of clinicopathologic factors for patients with Stage II colorectal cancer (n=340)

Parameters	n	χ2	P
Gender
Male	183	0.520	0.471
Female	157
Age
≥65 years	211	0.150	0.699
<65 years	129
Tumor position
Right hemicolon	111	1.179	0.555
Left hemicolon	115
Rectum	114
T staging
T3	253	1.038	0.308
T4	57
TD
Poorly-differentiated	31	12.675	<0.001
Well or maderat-differentiated	309
LVI
Present	9	12.041	<0.001
Absent	331
Perineural invasion
Present	9	0.018	0.892
Absent	331
Obstructing or perforating cancers
Present	22	0.058	0.810
Absent	218
UPM
Present	3	40.096	<0.001
Absent	337
LNs retrieved
<12 LNs	71	22.134	<0.001
≥12 LNs	269
Chemotherapy
Yes	159	1.321	0.250
No	181

LNs: Lymph nodes; UPM: Uncertain or positive margins; TD: Tumor differentiation; LVI: Lymphovascular invasion.