Table 1 Patient data characteristics

Total number of patients

96

68

28

Sex (%)

 Female

17.7%(17)

12

5

 Male

82.3%(79)

56

23

Tumor staging

 III

47

47

0

 IV

49

21

28

 Concurrent chemoradiotherapy

45

34

11

 Radiotherapy

51

34

17

Disease state (RECIST1.1)

 Complete remission

7.3%(7)

6

1

 Partial remission

70.8%(68)

50

18

 Stable disease

6.3%(6)

3

3

 Disease progression

15.6%(15)

9

6

Threshold volume of primary tumor (cm³)

32.45

Threshold volume of metastatic lymph node (cm³)

6.05

T-grouping situation

96

68

28

Volume range of primary tumo r(cm³) [min,max]

[2.1,174.4]

N-grouping situation

73

32

41

 Volume range of lymph node (cm³) [min,max]

[0.5,97.9]

 OS (month) (median, [IQR])

26 [19,41]

VSR (%) (median, [IQR])

 VSR-T

56.47 [33.09,77.61]

 VSR-N

89.56[65.87,100]