Margriet Kwint

Chapter 2 36 Table 4: Local and regional failures (crude incidence and the 1- and 2-year rates) in relative and absolute number of the 308 patients for the 2 cohorts receiving 70 Gy (N=170) and 60 Gy (N=138) to the involved lymph nodes, while prescribing the tumor 70 Gy (EQD2 10 ). Failures Reference Reduction Total P LF only 7.1% (12) 10.9% (15) 8.8% (27) 0.129 RF only 5.9% (10) 4.3% (6) 5.2% (16) 0.719 Both LF and RF 7.1% (12) 3.6% (5) 5.5% (17) 0.375 Outfield RF only 1.8% (3) 2.9% (4) 2.3% (7) 0.146 LF rate 1-year 2-year 5.4% 18.2% 8.3% 18.6% RF rate 1-year 2-year 8.0% 16.4% 5.6% 9.2% LF: local failure; RF: regional failure.