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

Table 1

Correlation between preoperative CTC status and clinical characteristics.

Items	CTC			MCTC
	N (n = 22)	(n = 34)		N (n = 27)	(n = 29)
Age
≤60	12	20	0.7520	14	18	0.4401
>60	10	14		13	11
Gender
Male	14	23	0.7569	17	20	0.6355
Female	8	11		10	9
TNM stage
I-II	12	18	0.9064	15	11	0.1864
III	10	16		12	18
T stage (infiltration depth)
T1-T2	15	12	0.0162	20	7	0.0002
T3-T4	7	22		7	22
N stage (lymphatic metastasis)
N0-1	12	21	0.5917	17	16	0.5538
N2	10	13		10	13
Tumor state
Local recurrence	12	21	0.8876	15	18	0.6206
Local remnants	10	13		12	11
First course of radiotherapy
Normal	17	19	0.1028	20	16	0.1402
Adjust the strong	5	15		7	13
Time between recurrence (years)
≤2	4	8	0.7844	5	7	0.7411
>2	8	13		10	11

Note: N means negative. means positive.