Predictive value of a serum tumor biomarkers scoring system for clinical stage II/III rectal cancer with neoadjuvant chemoradiotherapy

Table 1 Clinicopathological characteristics

Features	Median (IQR)
Pre-NCRT CEA	4.15 (2.18-10.07)
Pre-NCRT CA19-9	13.56 (7.80-25.40)
Age in yr	57.0 (50.0-66.5)
Sex
Male	150
Female	87
Pathological T stage
T0-2	118
T3-4	119
Pathological N stage
N0	177
N+	60
Pathological TNM stage
0	45
I	57
II	72
III	63
Pathological vascular invasion
Yes	13
No	224
Pathological lymphatic invasion
Yes	13
No	224
Pathological perineural invasion
Yes	41
No	196
Pathological CRM
Positive	8
Negative	229

NCRT: Neoadjuvant chemoradiotherapy; CEA: Carcinoembryonic antigen; CA19-9: Cancer antigen 19-9; TNM: Tumor, node and metastasis; CRM: Circumferential resection margin; IQR: Interquartile range.