Table 2.

Clinical characteristic of the CRC patients

Clinical parameters	Numbers
Cases	30
Age
< 65	14
≥ 65	16
Tumor size
Small size (< 5 cm)	20
Large size ( ≥ 5 cm)	10
Gender
Male	15
Female	15
Invasion levels
Mucosa	2
Submucosa	4
Muscle	7
Serosa	17
TNM stage
Stage 1-2	21
Stage 3-4	9
Lymph node metastasis
Positive	17
Negative	13
Grade of tumors
Low grade	5
Intermediate grade	23
High grade	2
Vascular invasion
Positive	14
Negative	16
Perineural invasion
Positive	7
Negative	23