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

Table 3

PFS analysis.

Subject	PFS	95% CI
CTC
(+)	18.71 ± 1.18	16.39–21.04	0.0481
(−)	22.47 ± 0.75	21.01–23.93
MCTC
(+)	18.22 ± 1.31	15.64–20.81	0.0027
(−)	22.30 ± 0.72	20.88–23.71
Age
≤60	19.10 ± 1.15	16.86–21.34	0.0782
>60	21.81 ± 1.01	19.82–23.79
Gender
Male	20.19 ± 1.01	18.22–22.16	0.9345
Female	20.23 ± 1.37	17.54–22.92
TNM stage
I-II	22.53 ± 0.83	20.91–24.15	0.0164
III	18.57 ± 1.16	16.28–20.86
T
T1-T2	20.99 ± 1.01	19.02–22.97	0.3587
T3	19.41 ± 1.23	17.00–21.83
N
N0-1	21.07 ± 0.94	19.23–22.91	0.2088
N2	18.98 ± 1.41	16.22–21.74
Tumor state
Local recurrence	20.86 ± 0.98	18.96–22.78	0.3352
Local residual	19.34 ± 1.36	16.68–21.99
First course of radiotherapy
Normal	22.14 ± 0.71	20.76–23.52	0.0026
Adjust the strong	16.85 ± 1.61	13.69–20.00
Time between recurrence (years)
>2	21.93 ± 1.35	19.29–24.58	0.4460
≤2	20.31 ± 1.30	17.75–22.86