Table 3 The comparison results of potential factors related to PALN recurrence above left renal vein

Tumor size

 < 5 cm

3

18

 ≥ 5 cm

3

11

Number of involved PALN

 ≥ 4

2

6

 < 4

4

23

Age

 ≥ 50

1

15

< 50

5

14

Pathology

Squamous cell carcinoma

5

23

Other

1

6

Stage

III or higher

1

3

II or lower

5

26

HPV

Positive

5

19

Negative

1

10

Radiotherapy for initial treatment

Included

4

27

Not included

2

2

Chemotherapy for initial treatment

Included

3

22

Not included

3

7

Time to PALN recurrence

 ≥ 1 year

2

12

 < 1 year

4

17

Concurrent DM

Positive

1

10

Negative

5

19

Concurrent LR

Positive

2

6

Negative

4

23

Initial pelvic lymph node involvement

Positive

2

19

Negative

4

10

Initial PALN involvement

Positive

4

6

Negative

2

23