Clinical Outcome and Prognostic Factors of Intensity-Modulated Radiotherapy for T4 Stage Nasopharyngeal Carcinoma

Table 1

Characteristics of 110 patients with T4 stage NPC.

Patient characteristics	Number of patients (%)
Age (y)
Range	17–69
Median	44.5
Gender
Male	87 (79.1)
Female	23 (20.9)
N stage
N0-1	35 (31.8)
N2-3	75 (68.2)
GTVnx (cc)
Range	22.37–246.10
Median	77.27
GTVln (cc)
Range	0–180.15
Median	14.1
IMRT replanning
No	63 (57.3)
Yes	47 (42.7)
Chemotherapy
Concurrent	75 (68.2)
Induction plus concurrent	35 (31.8)
Targeted therapy
No	83 (75.5)
Yes	27 (24.5)
Metastasis to RLN
No	13 (11.8)
Yes	97 (88.2)
Cervical nodal necrosis
No	68 (61.8)
Yes	42 (38.2)

GTVnx, gross tumor volume of the nasopharynx; GTVln, gross tumor volume of the lymph nodes; IMRT, intensity-modulated radiotherapy; RLN, retropharyngeal lymph nodes.