Table 3.

Association between miR-877 expression and clinical stages, differentiation degree and lymph node metastasis of LC patients

Clinical data	N	miR-877 expression in LC tissues		P value
		Low expression (n = 40) High expression (n = 40)
Age (years)				0.823
≤ 65	38	18 (45.5)	20 (50.0)
> 65	42	22 (54.5)	20 (40.0)
Gender				0.622
Male	57	30 (75.0)	27 (67.5)
Female	23	10 (25.0)	13 (32.5)
Tumor diameter (cm)				0.999
≤ 3	33	17 (42.5)	16 (40.0)
> 3	47	23 (57.5)	24 (60.0)
Clinical stage				0.012
I + II	34	23 (57.5)	11 (27.5)
III + IV	46	17 (42.5)	29 (72.5)
Lymph node metastasis				< 0.001
No	48	13 (32.5)	32 (87.5)
Yes	32	27 (67.5)	8 (12.5)
Differentiation				< 0.001
Poor + moderate	52	36 (90.0)	16 (40.0)
High	28	4 (10.0)	24 (60.0)

miR-877, microRNA-877; LC, lung cancer.