| Grade 0 No (%) | Grade 1 No (%) | Grade 2 No (%) | Grade 3 No (%) | P-value |
1) At 12 Months of Radiotherapy | 43 (79.6%) | 9 (16.7%) | 2 (3.7%) | 0 (0%) | P = 0.785n.s |
2) At 24 Months of Radiotherapy | 45 (83.3%) | 9 (16.7%) | 0 (0%) | 0 (0%) |