Table 1.

Common Toxicity Criteria for Adverse Events version 3.0 grading for radiation-induced esophagitis and the number of patients in each group

Grade	Symptoms	Incidence, no. (%)*
1	Asymptomatic, pathologic, radiographic, or endoscopic findings only	31 (9.5)
2	Symptomatic; altered eating/swallowing (e.g., altered dietary habits, oral supplements); intravenous fluids indicated <24 hours	121 (36.9)
3	Symptomatic and severely altered eating/swallowing (e.g., inadequate oral caloric or fluid intake); intravenous fluids, tube feedings, or total parenteral nutrition indicated ≥24 hours	15 (4.6)
4	Life-threatening consequences	0 (0)
5	Death	0 (0)

^*No RE was observed in 161 (49.1%) patients.