Table 3 The 5-year local control (LC) rate and overall survival (OS) rate for the early-stage (I + II) and advanced stage (III) patients of the two treatment groups (EBRT + NBT and 3D-CRT)

Stage I + II

n = 237

n = 126

  5-year LC

59.9 %

46.1 %

0.045

  5-year OS

43.9 %

28.6 %

0.004

 Median survival

45.5 months

25.9 months

0.004

Stage III

n = 308

n = 213

  5-year LC

44.9 %

33.2 %

0.306

  5-year OS

23.2 %

12.8 %

0.175

 Median survival

15.6 months

15.5 months

0.175

Overall

n = 545

n = 339

  5-year LC

51.4 %

38.1 %

0.019

  5-year OS

32.0 %

18.4 %

0.001

 Median survival

21.7 months

19.1 months

0.001