Table 5. Comparison of acute sever toxicities between the C-IMRT and SIR-IMRT groups.
| ≥ Grade 3 toxicities | C-IMRT group [n=137 (%)] | SIR-IMRT group [n=120 (%)] | Total | P value |
|---|---|---|---|---|
| Radiation esophagitis | 11 (8.0) | 5 (4.2) | 16 (6.2) | 0.622 |
| Radiation pneumonitis | 1 (0.7) | 0 (0.0) | 1 (0.4) | – |
| Leukopenia | 12 (8.8) | 4 (3.3) | 16 (6.2) | 1.000 |
| Neutropenia | 6 (4.4) | 5 (4.2) | 11 (4.3) | 0.273 |
| Anemia | 3 (2.2) | 2 (1.7) | 5 (1.9) | 1.000 |
| Thrombocytopenia | 2 (1.5) | 4 (3.3) | 6 (2.3) | 1.000 |
| Myelosuppression | 17 (12.4) | 9 (7.5) | 26 (10.1) | 0.169 |
SIR-IMRT, simultaneous integrated dose reduction in clinical target volume with intensity-modulated radiotherapy; C-IMRT, conventional-IMRT.