Table 3.

Multivariate analysis of PFS.

	PFS
	95% CI lower	95% CI upper	Wald	Exp(B)	P value
Lymph node metastasis	0.000	1.157∗10197	0.002	3.827∗104	0.963
Degree of tumor	0.041	5.496	0.354	0.467	0.552
Total-CTCs -2/5 mL	0.032	16.364	0.041	0.724	0.839
E-CTCs-2/5 mL	0.120	16.697	0.077	1.418	0.782
Dynamic of total CTCs	0.000	4.770∗10177	0.004	2.023∗104	0.952
Dynamic of M-CTCs	0.064	34.339	0.061	1.484	0.806