Table 1. Clinicopathological characteristics of the study patients (n=984).

Variable	Value
Age, median (range)	59 (26-86)
Gender
Male	640 (65%)
Female	344 (35%)
ypT stage ypT0 ypTis ypT1 ypT2 ypT3 ypT4	195 (19.8%) 15 (1.5%) 58 (5.9%) 274 (27.8%) 432 (43.9%) 10 (1.0%)
ypN stage ypN0 ypN1 ypN2	728 (74%) 194 (19.7%) 62(6.3%)
Histologic differentiation
Well, moderately	942 (95.7%)
Poorly, mucinous, signet ring cell	42 (4.3%)
Lymphovascular invasion	84 (9.5%)
Perineural invasion	117 (11.9%)
Tumor regression grade of primary tumor
Total	195 (19.8%)
Near total	220 (22.4%)
Moderate	418 (42.5%)
Minimal & no	151 (15.3%)