Table 1.

Expression of miR-1224-5p and SP1 according to patients' clinical features.

Characteristics	Number	miR-1224-5p expression		P-value	SP1 expression		P-value
		High group	Low group		High group	Low group
Age (years)
<50	16	7	9	0.58	6	10	0.26
>50	64	33	31		34	30
Gender
Female	48	26	22	0.36	23	25	0.65
Male	32	14	18		17	15
Lymph node metastasis
No	47	30	17	0.003**	16	31	<0.001***
Yes	33	10	23		24	9
Tumor stage
Stage I, II	37	25	12	0.004**	10	27	<0.001***
Stage III, IV	43	15	28		30	13
TNM staging system
T1+T2	45	30	15	<0.001***	13	32	<0.001***
T3+T4	35	10	25		27	8
Distant metastasis
No	62	35	27	0.03*	26	36	0.007**
Yes	18	5	13		14	4
Tumor size(cm)
<3 cm	48	23	25	0.65	20	28	0.06
>3 cm	32	17	15		20	12

^*P < 0.05,

^**P < 0.01, and

^***P < 0.001.