Comparison of long-term outcomes of stereotactic body radiotherapy (SBRT) via Helical tomotherapy for early-stage lung cancer with or without pathological proof

Table 4 Treatment toxicity

Events	Total (N = 119)	Clinical diagnosis (N = 55)	Pathological diagnosis (N = 64)	P value
Radiation pneumonitis (RP)				0.66
Grade 2	8 (7%)	4 (7%)	4 (6%)
Grade 3	5 (4%)	3 (6%)	2 (3%)
Radiation esophagitis (RE)				0.37
Grade 2	2 (2%)	1 (2%)	1 (2%)
Grade 3	1 (1%)	1 (2%)	0 (0%)
Chest wall toxicity (CWT)				0.37
G1	3 (3%)	1 (2%)	2 (3%)

ISSN: 1748-717X