Bmi-1 regulates stem cell-like properties of gastric cancer cells via modulating miRNAs

Table 2 Correlations between the expression level of Bmi-1, miR-21 or miR-34a, and clinical-pathologic variables

Variable	Number	Bmi-1		miR-21		miR-34a
Variable	Number	GA	P	GA	P	GA	P
Age(year)
≤59	40	2.246		2.066		0.449
≥60	34	2.699	0.616	2.596	0.681	0.747	0.204
Gender
Male	56	2.373		1.984		0.434
Female	18	2.682	0.774	3.608	0.351	0.619	0.449
Lymph node metastasis
Negative	30	1.717		1.988		0.679
Positive	44	3.110	0.108	2.531	0.667	0.502	0.459
T classification
T1/2/3	36	1.372		1.542		0.733
T4	38	4.223	0.001*	3.343	0.159	0.445	0.212
Vascular invasion
Negative	33	1.235		1.080		0.892
Positive	41	4.235	0.000*	4.210	0.012*	0.394	0.041*
Neural invasion
Negative	31	1.348		1.654		0.833
Positive	43	3.755	0.004*	2.905	0.313	0.430	0.101
Differentiation
Moderately	32	1.687		1.013		0.612
Poorly	42	3.243	0.074	4.278	0.008*	0.536	0.744
Staging
I/II	27	1.935		1.442		0.818
III/IV	47	2.795	0.332	2.997	0.200	0.460	0.165

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