Total dose^*1

treatment plan

Total dose^*2

lymph node level

Single dose

lymph node level

n^*3

Number of

recurrences

Recurrence

rate

p-Value

72 Gy

50 Gy (4^th order)

1.39 Gy

43

0

0.00%

66 Gy

50 Gy (3^rd order)

1.52 Gy

332

1

0.30%

72 Gy

56 Gy (3^rd order)

1.56 Gy

141

0

0.00%

66 Gy

56 Gy (2^nd order)

1.70 Gy

445

4

0.90%

56 Gy

50 Gy (2^nd order)

1.79 Gy

324

0

0.00%

72 Gy

66 Gy (2^nd order)

1.83 Gy

495

0

0.00%

72 Gy

72 Gy (1^st order)

2.00 Gy

365

17

4.70%

66 Gy

66 Gy (1^st order)

2.00 Gy

291

4

1.40%

56 Gy

56 Gy (1^st order)

2.00 Gy

198

4

2.00%

Total

<2.00 Gy

1780

5

0.30%

p = 0.001

2.00 Gy

854

25

2.90%