Table 1. Characteristics of 148 patients.

Characteristics	Category	Number of patients	%
Age (years)	Range	13–84
	Median	53
Gender	Male	116	78.4
	Female	32	21.6
T stage	T1	11	7.4
	T2	34	23.0
	T3	55	37.2
	T4	48	23.4
N stage	N0	4	2.7
	N1	31	20.9
	N2	87	58.8
	N3	26	17.6
TNM stage	III	78	52.7
	Iva	70	47.3
GTVnx (cm3)	≤42.7	88	59.5
	>42.7	60	40.5
GTVp (cm3)	≤42.87	84	56.8
	>42.87	64	43.2
Volume of RLN (cm3)	≤2.08	66	44.6
	>2.08	82	55.4