variable

RFS

DFS

OS

T stage

T1

90%

0.437

84%

0.756

80%

0.437

T2

88%

67%

70%

T3

82%

61%

66%

T4a

71%

58%

50%

Nodal status

Positive

85%

0.536

50%

0.006

60%

0.055

negative

78.5

76%

70%

Stage

Stage II

77%

0.734

75%

0.45

79%

0.136

Stage III

71%

71%

72%

Stage IVa

66%

66%

59%

Safety margins

positive

72%

0.828

51%

0.335

54%

0.521

Close

79%

57%

66%

negative

81%

60%

69%

Perineural invasion

Positive

55%

0.011

56%

0.007

61%

0.036

negative

71%

69%

82%

Treatment modality

RTH

43.6%

0.007

62.5%

0.003

48%

0.009

CCRTH

73%

83%

78%