Table 3.
Late toxicities
| Technique | Grade 0 (%) | Grade 1 (%) | Grade 2 (%) | Grade 3 (%) | Grade 4 (%) | p value | |
|---|---|---|---|---|---|---|---|
| Skin (n = 54) | IMRT(19) | 3(15.8) | 14(73.7) | 2(10.5) | 0 | 0 | 0.377 |
| 2D(35) | 12(34.3) | 18(51.4) | 4(11.4) | 1(2.9) | 0 | ||
| Mucosa (n = 55) | IMRT(20) | 14(70.0) | 5(25.0) | 1(5.0) | 0 | 0 | 0.152 |
| 2D(35) | 15(42.9) | 17(48.6) | 3(8.6) | 0 | 0 | ||
| Neck fibrosis (n = 57) | IMRT(21) | 3(14.3) | 8(38.1) | 8(38.1) | 2(9.5) | 0 | 0.672 |
| 2D(36) | 2(5.6) | 15(41.7) | 12(33.3) | 6(16.7) | 1(2.8) | ||
| Xerostomia (n = 58) | IMRT(21) | 1(4.7) | 14(66.7) | 6(28.6) | 0 | 0 | 0.063 |
| 2D(37) | 2(5.4) | 13(35.1) | 22(59.5) | 0 | 0 | ||
| Spinal cord (n = 49) | IMRT(18) | 18(100) | 0 | 0 | 0 | 0 | 0.441 |
| 2D(31) | 30(96.8) | 1(3.2) | 0 | 0 | 0 | ||
| Hearing (n = 57) | IMRT(20) | 10(50.0) | 0 | 10(50.0) | 0 | 0 | 0.568 |
| 2D(37) | 17(45.9) | 0 | 18(48.6) | 0 | 2(5.4) | ||
| Vision (n = 53) | IMRT(18) | 17(94.4) | 1(5.6) | 0 | 0 | 0 | 0.530 |
| 2D(35) | 32(91.4) | 1(2.9) | 0 | 0 | 2(5.7) | ||
| Trismus (n = 55) | IMRT(18) | 16(88.9) | 0 | 1(5.6) | 1(5.6) | 0 | 0.091 |
| 2D(37) | 22(59.5) | 0 | 12(32.4) | 1(2.7) | 2(5.4) | ||
| Hypothyroidism (n = 59) | IMRT(39) | 19(48.7) | 0 | 20(51.3) | 0 | 0 | 0.926 |
| 2D(20) | 10(50.0) | 0 | 10(50.0) | 0 | 0 |