Table 1. The distribution of T, N stage of 492 nasopharyngeal carcinoma patients (UICC2010 staging systems).

Stage	N0	N1	N2	N3a	N3b	Total
T1	14	16	3	0	0	33
T2	25	31	24	4	7	91
T3	15	64	70	1	16	166
T4	10	48	129	6	9	202
Total	64	159	226	11	32	492