Skip to main content

Table 3 Cross table with the influence of T-, N- and UICC8th-stadium on the cochleae doses

From: Cochlea sparing optimized radiotherapy for nasopharyngeal carcinoma

 

T-stage

p value

T1 or T2 (n = 12)

T3 or T4 (n = 8)

Left cochlea Dmean

   

 Mean ± SD

15.4 ± 7.1

24.2 ± 18.1

0.10

 Median [range]

14.0 [7.3–33.1]

18.2 [12.1–67.5]

 

Left cochlea Dmax

   

 Mean ± SD

25.8 ± 12.2

34.0 ± 18.6

0.34

 Median [range]

23.3 [10.9–54.5]

28.6 [17.5–69.8]

 

Right cochlea Dmean

   

 Mean ± SD

16.3 ± 4.6

30.3 ± 16.2

0.03

 Median [range]

16.0 [8.4–23.8]

25.5 [14.0–60.1]

 

Right cochlea Dmax

   

 Mean ± SD

28.9 ± 9.7

45.4 ± 20.6

0.13

 Median [range]

28.7 [12.3–42.2]

50.0 [15.8–69.1]

 
 

N-stage

 

p value

N0 or N1 (n = 13)

N2 or N3 (n = 7)

Left cochlea Dmean

   

 Mean ± SD

21.1 ± 15.4

15.0 ± 5.8

0.35

 Median [range]

17.2 [7.3–67.5]

13.5 [8.1–26.2]

 

Left cochlea Dmax

   

 Mean ± SD

31.1 ± 16.0

25.4 ± 14.0

0.39

 Median [range]

29.9 [12.9–69.8]

23.0 [10.9–54.5]

 

Right cochlea Dmean

   

 Mean ± SD

23.4 ± 14.1

19.2 ± 9.6

0.49

 Median [range]

17.1 [12.5–60.1]

20.7 [8.4–37.3]

 

Right cochlea Dmax

   

 Mean ± SD

36.1 ± 16.1

34.5 ± 19.2

0.88

 Median [range]

31.5 [15.8–64.9]

35.8 [12.3–69.1]

 
 

UICC8th

p value

UICC I or UICC II (n = 8)

UICC III or UICC IV (n = 12)

Left cochlea Dmean

   

 Mean ± SD

17.2 ± 8.0

20.1 ± 15.8

0.97

 Median [range]

16.3 [7.3–33.1]

14.4 [8.1–67.5]

 

Left cochlea Dmax

   

 Mean ± SD

29.3 ± 13.2

29.0 ± 17.0

0.73

 Median [range]

26.8 [12.9–54.5]

24.3 [10.9–69.8]

 

Right cochlea Dmean

   

 Mean ± SD

17.7 ± 3.9

24.7 ± 15.6

0.73

 Median [range]

16.6 [12.5–23.8]

21.1 [8.4–60.1]

 

Right cochlea Dmax

   

 Mean ± SD

31.5 ± 7.5

38.2 ± 20.7

0.79

 Median [range]

31.4 [19.9–42.2]

38.7 [12.3–69.1]

 
  1. Significant values are written in bold