Table 2 Treatment characteristics

Surgical treatment

Total

88

93.6

17

94.4

15

83.3

(0.279)

Local resection

78

83.0

14

77.7

14

77.7

(0.397)

Neck dissection

10

10.6

3

16.7

1

5.6

(0.790)

Brachytherapy

Total dose (Gy)

25.9 (10–35)

27.0 (15–35)

27.1 (20–30)

(0.696)

Single dose (Gy)

2.5 (2.5-4.5)

2.5 (2.5-3.0)

2.5 (2.5-2.5)

(0.791)

Fractions

10.2 (4–14)

10.6 (6–14)

10.8 (8–12)

(0.938)

Radiation days

6.3 (1–11)

7.1 (4–9)

6.6 (3–9)

(0.202)

V₁₀₀ (ml)

50.0 (3.6-149.5)

61.9 (22.3-149.5)

46.4 (4.0-111.1)

(0.291)

V₁₅₀ (ml)

19.1 (1.6-65.3)

23.1 (7.1-55.2)

17.0 (2.0-37.3)

(0.347)

DNR

0.37 (0.32-0.56)

0.35 (0.28-0.46)

0.40 (0.29-0.56)

(0.168)

Adjuvant treatment

EBRT

24

25.5

4

22.2

3

16.7

(0.557)

Radiation dose (Gy)

48.7 (30–60)

50.1 (50.0-50.4)

35.8 (30–45)

(0.887)

Chemotherapy (total)

15

16.0

18

100

2

11.1

(0.000)

Chemotherapy (only platinum derivatives)

5

5.3

2

11.1

-

-