Table 1. Comparison of patient characteristics versus pre-RDW.

Variables	Pre-RDW	P value
Gender		0.139
Female (n=44)	13.71 ± 1.87
Male (n=76)	13.25 ± 1.51
Age (years)		0.793
<60 (n=94)	13.41 ± 1.79
≥60 (n=26)	13.48 ± 1.08
ECOG score		0.004
0 (n=85)	13.14 ± 1.61
≥1 (n=35)	14.10 ± 1.62
ypTumor size (cm)		0.162
≤2 (n=58)	13.21 ± 1.58
>2 (n=62)	13.63 ± 1.74
Histology		0.232
Well-differentiated (n=75)	13.28 ± 1.47
Poor-differentiated (n=45)	13.66 ± 1.94
TRG score		0.218
0-1 (n=60)	13.23 ± 1.71
≥2 (n=60)	13.61 ± 1.60
Tumor location		0.003
Low (n=69)	13.79 ± 1.79
Middle-high (n=51)	12.90 ± 1.32
Depth of invasion		0.004
T3 (n=45)	13.08 ± 1.59
T4 (n=75)	13.99 ± 1.65
ypN stage		0.610
N0 (n=62)	13.20 ± 1.94
N≥1 (n=58)	13.73 ± 1.11
Stage of disease		0.173
II (n=61)	13.24 ± 2.01
III-IV (n=59)	13.64 ± 1.10
Surgical operation		0.617
Mile’s (n=46)	13.32 ± 1.65
Dixon (n=74)	13.48 ± 1.68
Neurological invasion		0.597
Absent (n=90)	13.45 ± 1.84
Present (n=30)	13.32 ± 0.96
Vascular invasion		0.005
Absent (n=78)	13.11 ± 1.61
Present (n=42)	14.04 ± 1.61

TRG score, tumor regression grading score.