Table 2. Correlation between RKIP expression and clinicopathological characteristics in nasopharyngeal carcinoma (n = 149, χ² test).

Variables	N	RKIP
		low	high	P
Gender
Male	110	67	43
Female	39	25	14	0.724
Age (y)
< 47	68	42	26
≥ 47	81	50	31	0.996
Primary tumor (T) stage
T1–2	74	43	31
T3–4	75	49	26	0.364
Lymph node (N) metastasis
N0	63	33	30
N1–3	86	59	27	0.044
Clinical TNM stage
I–II	41	17	24
III–IV	108	75	33	0.002
Radiation response
Sensitivity	74	28	46
Resistance	75	64	11	0.000