Preoperative Serum Interleukin-6 Is a Potential Prognostic Factor for Colorectal Cancer, including Stage II Patients

Table 1

Characteristic of the study patients ().

	Number of patients	Mean values (±SD)	%
IL-6 (pg/mL)
Colorectal cancer	233	6.6 (±9.9)	94.7
Healthy control	13	2.6 (±2.5)	5.3
Age (years)		69.1 (±10.2)
BMI		22.2 (±3.8)
Albumin (g/dL)		4.0 (±0.5)
CRP (mg/dL)		0.5 (±1.0)
CEA (ng/mL)		54.6 (±451.6)
CA19-9 (U/mL)		66.1 (±344.1)
VEGF (pg/mL)		92.9 (±128.5)
Tumor location
Rectum	78		33.5
Colon	155		66.5
TNM classification
0	13		5.6
1	52		22.3
2	60		25.8
3	63		27.0
4	45		19.3

IL-6: interleukin-6; BMI: body mass index; CRP: C-reactive protein; CEA: carcinoembryonic antigen; CA19-9: carbohydrate antigen 19-9; VEGF: vascular endothelial growth factor.