Table 1 Patients’ clinicopathologic characteristics.

From: Notch1+ cervical cancer cells may promote perineural invasion by secreting neurotrophin-4

Parameter

Before PSM

N=755

P value

After PSM

N=355

P value

PNI+

PNI−

PNI+

PNI-

Age, years

55 (48.5–59)

50 (44–56 )

< 0.001***

55 (48.5–59)

53 (47–58)

<0.001***

Clinical stage

  

0.008**

  

1

 IA2

0 (0%)

4 (0.6%)

 

0 (0%)

1 (0%)

 

 IB1

8 (11.3%)

183 (26.8%)

 

8 (11.3%)

31 (10.9%)

 

 IB2

15 (21.1%)

170 (24.9%)

 

15 (21.1%)

55 (19.4%)

 

 IB3

6 (8.5%)

61 (8.9%)

 

6 (8.5%)

34 (12.0%)

 

 IIA1

10 (14.1%)

94 (13.7%)

 

10 (14.1%)

59 (10.9%)

 

 IIA2

8 (11.3%)

57 (8.3%)

 

8 (11.3%)

37 (21.9%)

 

 IIB

24 (33.8%)

115 (16.8%)

 

24 (33.8%)

67 (23.6%)

 

Histological type

  

0.116

  

1

 Squamous cell carcinoma

62 (87.3%)

559 (81.7%)

 

62 (87.3%)

244 (85.0%)

 

 Adenocarcinoma

6 (8.5%)

111 (16.2%)

 

6 (8.5%)

36 (12.7%)

 

 Adenosquamous carcinoma

3 (4.2%)

14 (2.1%)

 

3 (4.2%)

4 (1.4%)

 

Tumor size, cm

  

< 0.001***

  

1

 ≤ 4

44 (62.0%)

560 (82.0%)

 

44 (62.0%)

196 (69.0%)

 

 > 4

27 (38.0%)

124 (18.0%)

 

27 (38.0%)

88 (31.0%)

 

Lymph node metastasis

  

< 0.001***

  

1

 Negative

35 (49.3%)

548 (80.0%)

 

35 (49.3%)

100 (35.2%)

 

 Positive

36 (50.7%)

136 (20.0%)

 

36 (50.7%)

178 (62.3%)

 

Vascular invasion

  

< 0.001***

  

1

 Negative

24 (34.0%)

413 (60.4%)

 

24 (34.0%)

114 (40.1%)

 

 Positive

47 (66.0%)

271 (39.6%)

 

47 (66.0%)

170 (59.9%)

 

Depth of cervical invasion

  

< 0.001***

  

0.522

 < 2/3

8 (11.3%)

394 (57.6%)

 

8 (11.3%)

25 (8.8%)

 

 ≥ 2/3

63 (88.7%)

290 (42.4%)

 

63 (88.7%)

259 (91.2%)

 
  1. *p < 0.05; **p < 0.01; ***p < 0.001