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Table 3 Distributions of patients in P67.5 and P70 study according to the UICC 2002 staging system

From: Propensity score matching analysis of a phase II study on simultaneous modulated accelerated radiation therapy using helical tomotherapy for nasopharyngeal carcinomas

Stage

P67.5

P70

N0

N1

N2

N3

Total

N0

N1

N2

N3

Total

T1

7

17

15

2

41

8

19

15

4

46

T2

5

14

25

4

48

6

14

18

3

41

T3

5

15

12

2

34

8

7

18

1

34

T4

4

4

16

1

25

0

11

14

2

27

Total

21

50

68

9

148

22

51

65

10

148