Clinical Study of Nasopharyngeal Carcinoma Treated by Helical Tomotherapy in China: 5-Year Outcomes

Table 2

Patient’s characteristics.

Characteristics	Patients
	Number	%
Age (median)	10–81 (44)
Male	144	75.8
Female	46	24.2
ECOG performance status
0	57	30.0
1	113	59.5
2	20	10.5
Pathology
WHO type I	3	2.5
WHO type II/III	118	97.5
UICC 2002 stage
I	16	8.4
IIa-b	64	33.7
III	71	37.4
IVa-b	39	20.5