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Table 1 Clinical characteristics of 455 patients with TTV ≤ 28 and TTV > 28 cm3

From: Prognostic value of total tumor volume in patients with nasopharyngeal carcinoma treated with intensity-modulated radiotherapy

Characteristics

TTV ≤ 28 cm3

(N = 188)

TTV > 28 cm3

(N = 267)

P Value†

Sex (%)

  

<0.001

 Male

127

220

 

 Female

61

47

 

Age (years)

  

0.908

  ≤ 45 years

82

115

 

  > 45 years

106

152

 

T-categorya (%)

  

<0.001

 T1

93

34

 

 T2

31

28

 

 T3

52

105

 

 T4

12

100

 

N-categorya (%)

  

<0.001

 N0

43

15

 

 N1

116

139

 

 N2

26

93

 

 N3

3

20

 

Stage-groupa (%)

  

<0.001

 I

29

0

 

 II

78

32

 

 III

66

118

 

 IVa–b

15

117

 

Chemotherapy

   

 Yes

139

245

<0.001

 No

49

22

 

Additional boost

   

 Yes

28

22

0.025

 No

160

245

 
  1. TTV total tumor volume; † P values were calculated by the Chi-square test; aAccording to the 7th edition of the American Joint Commission on Cancer staging system
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BMC Cancer

ISSN: 1471-2407

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