IMRT

 Any significant differences in local, regional or distant metastasis or in recurrence-free survival  At 3 years free from local recurrence: 96% vs 100%  Regional nodal recurrence: 4 vs 1 patients  Free from regional recurrence at 3 years: 90% vs 96%  Distant metastasis: 1 vs 2 patients  Free from distant metastasis at 3 years: 97% vs 91%  Recurrence free survival at 3 years: 86% vs 80%

Small number of events: statistical power to detect significant difference in local, regional and distant failure was low. Relapse frequencies and recurrence-free survival are preliminary for short follow-up