Table 1. Correlation between clinicopathological variables and the expression of miR-154-3p and miR-487-3p in thyroid cancer tissues.

Variables	n	miR-154-3p		P-value	miR-487-3p		P-value
		Low (n = 28)	High (n = 35)		Low (n = 33)	High (n = 30)
Gender				0.151			0.593
Male	21	12	9		10	11
Female	42	16	26		23	19
Age (years)				0.735			0.516
≤45	30	14	16		17	13
>45	33	14	19		16	17
Tumor size (cm)				0.011			0.011
≤2	38	12	26		15	23
>2	25	16	9		18	7
TNM				0.012			0.009
I-II	40	13	27		16	24
III-IV	23	15	8		17	6
Histological grade				< 0.001			0.007
Low	42	12	30		17	25
Moderate/Advanced	21	16	5		16	5
Lymph node metastasis				0.001			0.021
No	39	11	28		16	23
Yes	24	17	7		17	7