Treatment plan

V30/%

V40/%

Dmean/cGy

3D-CRT

14.04 ± 7.32

7.84 ± 3.31

645.43 ± 522.24

IMRT

13.15 ± 5.75

5.65 ± 3.42

1047.84 ± 593.88

Hybrid-IMRT

9.68 ± 6.47

6.15 ± 3.83

555.18 ± 458.04

CRT vs IMRT

t

0.117

0.619

−1.687

P value

0.904

0.545

0.105

CRT vs Hybrid

t

−0.632

−0.457

−0.432

P value

0.515

0.654

0.672

IMRT vs Hybrid

t

−0.577

0.152

−2.181

P value

0.568

0.883

0.041