Table 2 Treatment characteristics

primary RT course technique

2d

12 (71%)

3d

5 (29%)

primary RT dose (boost)

median

66

range

50-72

primary RT dose (nodal regions)

median

56

range

50-60

second RT course technique

IMRT

14 (82%)

FSRT

3 (18%)

second RT course dose

median

50,4

range

36-60

second RT PTV volume

median

127

range

26-347

time between RT courses

median

52

range

6-132

cumulative dose both RT courses

median

112

range

91-132

second RT course systemic therapy

concurrent chemotherapy

7 (41%)

concurrent immunotherapy

1 (6%)

adjuvant chemotherapy

2 (12%)

no chemotherapy

9 (53%)