Table 1. correlation between miR-509-3-5P expression and clinicopathological parameters in GC (n = 54).

Parameters	category	No.	MiR-509-3-5P expression		p
			low	high
Age					0.055128
	< 65	26	17	9
	≥ 65	28	11	17
Gender					0.439419
	Male	38	21	17
	Female	16	7	9
T stage1					0.022088*
	T2	5	0	5
	T3	21	10	11
	T4	28	18	10
N stage	N0	11	3	8	0.027214*
	N1	12	4	8
	N2	13	7	6
	N3	18	14	4
UICC stage2	II	17	4	13	0.007740**
	III	37	24	13
Nerve invasion	Yes	29	17	12	0.283639
	No	25	11	14
Vessel invasion	Yes	29	14	15	0.571098
	No	25	14	11
Differentiation3	High	3	0	3	0.000101***
	Moderate	19	4	15
	Low	32	24	8
Tumor size	≤ 3	23	12	11	0.967456
	> 3	31	16	15

^1,2There is no T1 stage tumor or M1 patients in our GC tissues microarray.

³Low differentiation includes poor differentiation, mucinous adenocarcinoma, and signet ring cell carcinoma.

*p < 0.05, **p < 0.01,***p < 0.001.