Table 1.

Clinicopathological characteristics of all patients (n = 48)

Characteristic	All patients (n = 48)
Age (years)	66 ± 11
Gender (male/female)	32/16
WBC (/μL)	6747 ± 2794
TLC (/μL)	1627 ± 601
Alb (mg/dL)	3.8 ± 0.5
CRP (mg/dL)	0.65 ± 1.83
Tumor characteristic
Differentiation (tub1/tub2/other)	27/19/2
CEA (</≥ 5 ng/mL)	34/14
CA19-9 (</≥ 37 IU/mL)	40/8
Pre-CRT stage (I/II/II)	3/11/28
Treatment
Chemotherapy (S-1/UFT/5-FU)	29/8/11
Surgery (LAR/ISR/APR/local)	18/11/17/2

WBC white blood cell, TLC total lymphocyte count, Alb albumin, CRP C-reactive protein, CEA carcinoembryonic antigen, tub1 well-differentiated tubular adenocarcinoma, tub2 moderately differentiated tubular adenocarcinoma, S-1 tegafur-gimeracil-oteracil, UFT tegafur-uracil, 5-FU 5-fluorouracil, CRT chemoradiotherapy, LAR low anterior resection, ISR intersphincteric resection, APR abdominoperineal resection