The Role of Circulating Tumor Cells in the Prognosis of Local Recurrence and Local Residual Nasopharyngeal Carcinoma Undergoing Endoscopic Resection

Table 2

Correlation between postoperative CTC status and clinical characteristics.

Items	CTC			MCTC
	N (n = 33)	(n = 23)		N (n = 39)	(n = 17)
Age
≤60	16	16	0.1168	21	11	0.4502
>60	17	7		18	6
Gender
Male	23	14	0.4925	26	11	0.8867
Female	10	9		13	6
TNM stage
I-II	20	3	0.0004	22	1	0.0004
III	13	20		17	16
T stage (infiltration depth)
T1-T2	20	7	0.0262	23	4	0.0147
T3-T4	13	16		16	13
N stage (lymphatic metastasis)
N0-1	19	14	0.8053	23	10	0.9916
N2	14	9		16	7
Tumor state
Local recurrence	18	15	0.4245	21	12	0.2416
Local remnants	15	8		18	5
First course of radiotherapy
Normal	25	11	0.0319	29	7	0.0172
Adjust the strong	8	12		10	10
Time between recurrence (years)
≤2	6	4	0.6782	7	3	0.6163
>2	12	11		14	9

Note: N means negative. means positive.