Table 1. Association between miR-146 expression and clinical features of patients with epidural fibrosis.

Parameters	Patients (n = 45)	miR-146 expression		P value
		Low (n = 19)	High (n = 26)
Age				0.493
≤ 45	24	9	15
>45	21	10	11
Gender				0.388
Male	27	10	17
Female	18	9	9
Location				0.017*
L3-4	17	11	6
L4-5	28	8	20
Low back pain				0.121
No	20	11	9
Yes	25	8	17
Lower limb symptom				0.007**
No	18	12	6
Yes	27	7	20
Duration of disease (month)				0.012*
< 3	21	13	8
>3	24	6	18