Table 2.

Association between preoperative FR⁺ CTCs and clinicopathological characteristics in enrolled patients

Characteristics	N(%)	FR+ CTC (FU/3ml, median, IQR)	P value
Total	123 (100.0)	10.78 (9.13–14.41)
Gender			0.889
Male	106 (86.2)	10.60 [9.13–14.30]
Female	17 (13.8)	11.30 [9.33–14.60]
Age(years)			0.689
< 60	52 (42.3)	10.60 [8.74–14.70]
>= 60	71 (57.7)	10.80[9.34–13.70]
Tumor size (cm)			0.228
<= 3	53 (60.2)	10.30 [9.15–12.70]
> 3	35 (39.8)	11.00 [9.67–14.50]
Histologic grade			0.634
Well-differentiated	54 (43.9)	10.50 [8.80–14.50]
Moderately differentiated	40 (32.5)	11.00 [9.68–13.40]
Poorly differentiated	29 (23.6)	10.20 [9.03–15.50]
T stage			0.365
0	18 (15.7)	9.89 [7.94–14.50]
is	2 (1.7)	10.70 [10.30–11.10]
1	20 (17.4)	9.97 [9.12–11.50]
2	16 (13.9)	9.95 [9.19-12.00]
3	57 (49.6)	11.60 [9.68–14.60]
4	2 (1.7)	12.90 [10.90–15.00]
N stage			0.917
0	49 (42.6)	10.80 [9.34–14.40]
1	44 (38.3)	10.90 [9.26–13.30]
2	19 (16.5)	10.30 [9.10–13.60]
3	3 (2.6)	9.50 [8.08–12.30]
TNM stage			0.680
I	26 (22.6)	10.30 [9.13-13.00]
II	32 (27.8)	10.90 [9.61-14.00]
III	52 (45.2)	11.00 [9.34–14.40]
IV	5 (4.4)	9.50 [8.83-15.00]
Perineural invasion			0.679
No	86 (69.9)	10.70 [9.09–14.30]
Yes	37 (30.1)	11.00 [9.50–14.40]
Vessel invasion			0.801
No	88 (71.5)	10.80 [9.14–14.20]
Yes	35 (28.5)	10.20 [9.15–14.80]