Clinical staging

NAC invasion

Test

p-value

(Sig.)

Absent

(N = 50)

Present

(N = 11)

T

T1

10

20%

1

9.1%

1.002

0.606

(NS)

T2

39

78%

10

90.9%

T3

1

2%

0

0%

T4

0

0%

0

0%

N

N0

20

40%

0

0%

10.591

0.014

(S)

N1

15

30%

3

27.3%

N2

5

10%

1

9.1%

N3

10

20%

7

63.6%