Table 1.

Patient demographic, clinical and pathological characteristics

Characteristic	No.
Patients
Cancer tissues	49
Adjacent normal tissues	49
Sex
Male	28
Female	21
Smoking
Yes	12
No	34
BMI
< 25	21
≥ 25	25
Dukes staging system
B	25
C	19
D	5
Histology grade
High	4
Medium	41
Low	4
Tumour location
Right colon	8
Left colon	24
Rectum	17

BMI = body mass index.