Correlation of IL-8 with induction, progression and metastatic potential of colorectal cancer

Table 1 Clinical characteristics of patients with colorectal carcinomas and colorectal liver metastases

Factor	CRC (n = 48)	CRLM (n = 161)
Localization of primary tumor
Colon	22	6
Rectum	26	8
Gender
Male	29	7
Female	19	7
Age, yr2	63.7 (47-78)	60.3 (41-76)
Hepatitis (A, B or C)
Positive	6	2
Negative	42	12
Liver cirrhosis
Positive	1	0
Negative	47	14
Adipositas
Positive	12	4
Negative	36	10
Largest tumor diameter (cm)2	4.6 (1.2-9.1)	4.2 (1.5-5.5)
TNM stage of primary tumor
I	8	1
II	15	2
III	15	10
IV	10	1
Grading
I	0	0
II	21	4
III	27	10
Lymphatic permeation
Positive	27	10
Negative	21	4
Vascular invasion
Positive	6	5
Negative	42	9
Chemotherapy before operation	0	2
Radiotherapy before operation	0	2

TNM: Tumor-node-metastasis; CRC: Colorectal carcinoma; CRLM: Colorectal liver metastases.

¹16 CRLM originating from 14 CC patients;

²Median with range in parentheses.