Long noncoding RNA FER1L4 promotes the malignant processes of papillary thyroid cancer by targeting the miR-612/ Cadherin 4 axis

Table 1 Correlation between the expression level of FER1L4 and clinicopathological features in 80 PTC patients

Characteristics	Cases (%)	FER1L4 expression		P value*
Characteristics	n = 80	Low (n = 40)	High (n = 40)	P value*
Age (year)
≤ 45	43 (53.75)	23	20	0.327
> 45	37 (46.25)	17	20
Gender
Male	18 (22.50)	8	10	0.395
Female	62 (77.5)	32	30
Tumor size (cm)
≤ 2	69 (86.25)	37	32	0.096
> 2	11 (13.75)	3	8
Lymph node metastasis
N0	32 (40.00)	21	11	0.020
N1a + N1b	48 (60.00)	19	29
Extrathyroidal extension
Yes	12 (15.00)	2	10	0.013
No	68 (85.00)	38	30
TNM stage
I + II	63 (78.75)	36	27	0.013
III + IV	17 (21.25)	4	13

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