Clinical Outcomes and Prognostic Factors of 695 Nasopharyngeal Carcinoma Patients Treated with Intensity-Modulated Radiotherapy

Table 1

Clinical characteristics of 695 NPC.

Characteristics	(%)
Age
Median: 45 yrs
Range: 14–74
≤45 yrs	449 (64.6)
>45 yrs	246 (35.4)
Gender
Male	540 (77.7)
Female	155 (22.3)
Histopathology (WHO type)
Type 1	40 (5.7)
Types 2.1 & 2.2	655 (94.3)
T-classification
T1	43 (6.1)
T2	229 (32.9)
T3	244 (35.1)
T4	179 (25.9)
N-classification
N0	49 (7.1)
N1	228 (32.8)
N2	383 (55.1)
N3	35 (5.0)
Clinical stage
I	43 (6.1)
II	172 (24.7)
III	268 (38.6)
IV	212 (30.6)
Chemotherapy
Not given	236 (34.0)
Concurrent	190 (27.3)
Induction + concurrent	52 (7.5)
Concurrent + adjuvant	217 (31.2)