Table 2.

Correlation of the miR-2355-3p expression in serum with clinical characteristics of LUAD patients. High miR-2355-3p in LUAD tissues was associated with high N stage (P < 0.05)

Parameters	Cases (n = 116)	miR-2355-3p expression		P
		Low (n = 56)	High (n = 60)
Age				0.465
≤ 55	56	29	27
> 55	60	27	33
Gender				0.472
Female	62	28	34
Male	54	28	26
Smoking status
Nonsmoker	55	29	26	0.362
Smoker	61	27	34
Tumor size				0.130
≤ 3 cm	62	34	28
> 3 cm	54	22	32
Pathological stage				0.087
I	63	35	28
II–IV	53	21	32
N stage				0.024*
I	75	42	33
II–IV	41	14	27
M stage				0.103
I	107	54	53
II–IV	9	2	7

*P < 0.05.