Table 1: Comparison of risk factors and pathological data between fistula and non-fistula patients.

 

Fistula % (n)

Non-fistula % (n)

Number of patients

6

39

Average Age*

57.17 (± 5.30)

64.44 (± 9.88)

Gender (M:F)*

5:1

34:5

Race (White: others)*

5:1

38:1

Postop Hemoglobin*

10.48 (± 2.60)

11.15 (1.76)

Prior Radiation

50.00 (3)

35.90 (14)

Prior chemoradiation

33.33 (2)

23.08 (9)

Neck dissection

 

 

Bilateral

33.33(2)

25.64(10)

Unilateral

16.67(1)

51.28(20)

None

50.00(3)

23.07(9)

Margin (mm)*

4.20(± 3.76)

7.33(± 7.43)

Tumor size (mm)*

28.2(± 12.35)

29.9(± 8.59)

Tumor stage

 

 

T4

50.00 (3)

56.41 (22)

T3

33.33 (2)

23.08 (9)

T2

16.67 (1)

10.27 (4)

T1

00.00

05.13 (2)

Nodal positive

16.67 (1)

23.08 (9)

Perineural invasion

33.33 (2)

33.33 (13)

Lymphovascular invasion

16.67 (1)

33.33 (13)

Site

 

 

Glottic

50.00 (3)

76.92 (30)

Supraglottic

16.67 (1)

15.38 (6)

Subglottic

33.33 (2)

07.69 (3)

Prior tracheostomy

100.00 (6)

46.34 (19)

*: Units are noted on the left-hand side column.