Table 4 Correlation between dosimetric factors and RP by univariate analysis

GTV volume (mL)

130.2 ± 104.9

122.4 ± 83.9

.758

125.9 ± 101.1

143.6 ± 89.2

.795

PTV volume (mL)

401.3 ± 205.7

395.7 ± 159.0

.484

396.6 ± 196.7

422.1 ± 178.4

.933

MLD (cGy)

1361.6 ± 259.7

1408.6 ± 239.2

.935

1366.0 ± 261.2

1428.9 ± 198.3

.514

V ₅

48.6 ± 9.4

51.12 ± 9.5

.576

49.0 ± 9.4

50.9 ± 9.8

.730

V ₁₀

35.8 ± 7.1

38.2 ± 6.4

.925

36.1 ± 7.0

38.4 ± 6.7

.915

V ₂₀

23.7 ± 4.2

25.7 ± 4.2

.929

23.9 ± 4.2

26.7 ± 4.0

.919

V ₃₀

16.6 ± 3.8

18.8 ± 4.4

.565

16.8 ± 4.0

19.8 ± 3.8

.782

V ₄₀

12.1 ± 3.5

12.9 ± 4.1

.775

12.1 ± 3.6

13.8 ± 3.6

.335

V ₅₀

7.7 ± 3.6

7.4 ± 3.3

.534

7.5 ± 3.6

8.0 ± 2.7

.140