Table 1.

Clinical features and relative expression of miR-9 in glioblastoma (110 cases).

Clinical variables	Num	miR-9 relative expression		X2/H	P value
		High expression	Low expression
Total	110	55	55
Gender
Male	51	27 (49.1)	24 (43.6)	0.329	0.566
Female	59	28 (50.9)	31 (56.9)
Age (y)
<50	48	22 (40.0)	26 (47.3)	0.591	0.442
>50	61	33 (60.0)	29 (52.7)
Recurrences
Yes	44	16 (29.1)	28 (50.9)	5.455	0.020
No	66	39 (70.9)	27 (49.1)
Onset time (m)
≤ 12	43	18 (32.7)	25 (45.5)	1.871	0.171
>12	67	37 (67.3)	30 (54.5)
Num of lobes involved
Single	64	40 (72.7)	24 (43.6)	9.565	0.002
Multiple	46	15 (27.3)	31 (56.4)
Pre-op KPS score
≥80	59	33 (60.0)	26 (47.3)	1.791	0.181
<80	51	22 (40.0)	29 (52.7)
Post-op KPS score
≥80	658	431 (53.4)	27 (46.6)	10.584	0.445
<80	452	124 (46.2)	328 (53.8)
Tumor size
<3 cm	35	17 (30.9)	18 (32.7)	3.251	0.197
3–5 cm	45	19 (34.5)	26 (47.3)
>5 cm	30	19 (34.5)	11 (20.0)
Adjuvant therapy
Yes	52	23 (41.8)	29 (52.7)	1.313	0.252
No	58	32 (58.2)	26 (47.3)
Degree of tumor resection
Totally	30	12 (21.8)	18 (32.7)	0.157	0.692a
Most partially/partially	54	33 (60.0)	21 (38.1)
Biopsy	26	10 (18.2)	16 (29.1)
Survivals
<6 m	37	10 (18.2)	27 (49.1)	15.209	<0.001
6–12 m	29	14 (25.5)	15 (27.3)
>12 m	44	31 (56.4)	13 (23.6)

Pre-op, pre-operative; Post-op, post-operative; Num, number.

^aDegree of tumor resection is a hierarchical variable was used by the Kruskal Wallis H-test of non-parametric test.