Table 1. Association between clinicopathological characteristics and GRP94 expression.

Characteristics	GRP94 expression		P value
	Low (n = 52)	High (n = 39)
Gender			0.770
Male	40 (77%)	31 (79%)
Female	12 (23%)	8 (21%)
Mean Age (years) ± SD	63.3 ± 7.9	66.0 ± 9.2	0.129
Age			0.328
<65 years	32 (62%)	20 (51%)
≥65 years	20 (38%)	19 (49%)
Grading of SCC			0.327
Well differentiated	8 (15%)	6 (15%)
Moderately differentiated	38 (73%)	24 (62%)
Poorly differentiated	6 (12%)	9 (23%)
Invasive depth of tumor*1			0.395
T1+T2	17 (34%)	10 (26%)
T3+T4	33 (66%)	29 (74%)
Lymph node metastasis*2
Negative	35 (70%)	18 (47%)	0.032
Positive	15 (30%)	20 (53%)
Stage (AJCC 7th Ed) *3			0.057
I + II	37 (77%)	22 (58%)
III + IV	11 (23%)	16 (42%)

^*1 Missing data in 2 cases; ^*2 missing data in 3 cases; ^*3 missing data in 5 cases

Abbreviation: AJCC, American Joint Committee on Cancer