Factor

Total

(n = 72)

No Fistula

(n = 25)

Fistula

(n = 47)

p-Value

BMI

<25

≥25

30 42

12 13

18 29

0.46

BMI

<30

≥30

61 11

23 2

38 9

0.30

Gender Male Female

38 34

12 13

26 21

1.00

Lymph node metastases

≤1

>1

51 21

18 7

33 14

1.00

Surgical experience Resident Senior surgeon

30 42

11 14

19 28

0.80

SLND before ILND Yes No

36 36

11 14

25 22

0.62