Table 1. The relationship between OLC1 expression and patient clinicopathological characteristics.

	Expression of OLC1 protein			Total Patients	Percent positive (%)	P value*
	(−)(±)#	(+)#	(++)#
General
Normal Adjacent tissue	155	51	8	214	27.57
Tumor tissue	69	115	30	214	67.80	<0.001
Gender
Male	54	93	25	172
Female	16	21	5	42		>0.05
Age
<60	41	68	14	123
≥60	29	46	16	91		>0.05
TNM Stage
T3N0M0	38	54	12	104	63.46
T3N1M0	32	60	18	110	70.91	>0.05

^#(−) = no staining; (±) = background or faint staining; (+) = positive staining; (++) = intense staining. Samples marked (+) or (++) were considered positive for OLC1 protein expression.

*Significance was determined by Pearson chi-square test.