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Side effects grade 3 or higher
| <5 Gy/fr | ≥5 Gy/fr | p value | |
|---|---|---|---|
| Pharyngeal mucositis grade 3 | 2 | 1 | 0.375 |
| Dysphagia grade 3 | 5 | 5 | 0.563 |
| Dermatitis grade 3 | 1 | 1 | 0.824 |
| Trachea necrosis grade 4 | 0 | 1 | 0.288 |
| Injury to the carotid artery grade 5 | 0 | 1 | 0.288 |
There was no significant difference between the ≥5 Gy/fr group (hypofractionated radiotherapy group) and the <5 Gy/fr group.
