[Retracted] The Number of Intraoperative Intestinal Venous Circulating Tumor Cells Is a Prognostic Factor for Colorectal Cancer Patients

Table 2

Differences in CTC detection among healthy control, benign CRC, and CRC patient groups.

Variable	Collecting blood position	n	Positive/negative	CTCs-positive (%)	χ^2	P-value
Healthy controls	Peripheral venous blood	48	0/48	0	176.756	0.000
Benign CRC	Peripheral venous blood	72	0/72	0
CRC	Peripheral venous blood	162	56/106	34.57
CRC	Intestinal venous blood	162	126/36	77.78

CTCs, circulating tumor cells; CRC, colorectal cancer.