Table 2 Vx constraints added onto the QUANTEC data

QUANTEC

MED

 < 34 Gy

5–20%

Grade 3 + esophagitis

QUANTEC

V35

 < 50%

 < 30%

Grade 2 + esophagitis

QUANTEC

V50

 < 40%

 < 30%

Grade 2 + esophagitis

QUANTEC

V70

 < 20%

 < 30%

Grade 2 + esophagitis

This Study

MED

 < 10 Gy

5–20%

Grade 2 + esophagitis

0.180

This Study

V50

 < 35%

 < 30%

Grade 2 + esophagitis

0.308

This Study

MED

 < 300 cGy

5–20%

Grade 1 + esophagitis

0.005

This Study

V20

 < 30%

 < 30%

Grade 1 + esophagitis

0.006

This Study

V30

 < 20%

 < 30%

Grade 1 + esophagitis

0.001

This Study

V40

 < 10%

 < 30%

Grade 1 + esophagitis

0.002

This Study

V50

 < 1%

 < 30%

Grade 1 + esophagitis

0.015