. 2019 Jul 25;10(19):4552–4563. doi: 10.7150/jca.30512

Table 5.

Tumor recurrence rate in stage II-III CRC patients stratified by different risk scores in prognostic models combining TNM stage, postoperative CA72-4 and postoperative CTCs or combining postoperative CA72-4 and postoperative CTCs.

Parameters	Subgroups	Tumor recurrence		χ²	P-value
Parameters	Subgroups	No recurrence	Recurrence	χ²	P-value
Prognostic model 1 (TNM+CA72-4+CTCs)
Binary classification	Low risk	85	7	16.894	<0.001
	High risk	17	11
Multiple classification	Low risk	46	1	16.651	<0.001
	Moderate risk	42	8
	High risk	14	9
Prognostic model 2 (CA72-4+CTCs)
Binary classification	Low risk	72	4	15.412	<0.001
	High risk	30	14
Multiple classification	Low risk	72	4	18.926	<0.001
	Moderate risk	28	11
	High risk	2	3

Abbreviations: CRC, colorectal cancer; CTCs, circulating tumor cells; CA72-4, carbohydrate antigen 72-4. Note, Bold, indicates the association was significant.