Expression of heat shock protein 70 in nasopharyngeal carcinomas: different expression patterns correlate with distinct clinical prognosis

Table 3 Association of different Hsp70 expression patterns and clinicopathological characteristics in NPC patients

Characteristics	Hsp70 membranal and cytoplasmic staining		P value	Hsp70 nuclear staining		P value
	low expression (n = 281)	high expression (n = 226)		low expression (n = 370)	high expression (n = 137)
Age, years			0.751			0.857
<46	131	116		176	71
> = 46	145	115		188	72
Sex			0.828			0.715
Male	209	170		275	104
Female	72	56		94	34
Tumor stage			0.001			0.401
T1 + T2	96	109		153	51
T3 + T4	186	116		217	86
Lymphoid Nodal(N) state			0.061			0.468
N0	64	69		94	40
N1-3	217	157		276	97
Recurrence or metastasis			0.002			0.016
Yes	126	71		132	65
No	155	155		238	72
TNM clinical stage			0.005			0.900
I + II	63	76		102	37
III + IV	218	150		268	100

ISSN: 1479-5876