Table 3. Outcome measures of the two groups.

Variables	Stenting (n=64)	Balloon (n=58)	P value
Primary outcome
Asymptomatic at discharge
Headache	11/45 (24.4)	4/44 (9.1)	0.087
Papilledema	22/54 (40.7)	2/48 (4.2)	<0.001
Visual disturbances	22/52 (42.3)	4/43 (9.3)	<0.001
Sixth nerve palsy	5/11 (45.5)	1/10 (10.0)	0.149
Tinnitus	6/13 (46.2)	1/9 (11.1)	0.165
Asymptomatic at 3 months
Headache	23/45 (51.1)	5/44 (11.4)	<0.001
Papilledema	28/54 (51.9)	3/48 (6.3)	<0.001
Visual disturbances	25/52 (48.1)	4/43 (9.3)	<0.001
Sixth nerve palsy	7/11 (63.6)	1/10 (10)	0.024
Tinnitus	8/13 (61.5)	1/9 (11.1)	0.031
Asymptomatic at 6 months
Headache	34/45 (75.6)	6/44 (13.6)	<0.001
Papilledema	42/54 (77.8)	3/48 (6.3)	<0.001
Visual disturbances	42/52 (80.8)	6/43 (14.0)	<0.001
Sixth nerve palsy	8/11 (72.7)	2/10 (20.0)	0.030
Tinnitus	10/13 (76.9)	2/9 (22.2)	0.027
Asymptomatic at 12 months
Headache	36/45 (80.0)	5/44 (11.4)	<0.001
Papilledema	46/54 (85.2)	6/48 (12.5)	<0.001
Visual disturbances	48/52 (92.3)	5/43 (11.6)	<0.001
Sixth nerve palsy	9/11 (81.8)	2/10 (20.0)	0.009
Tinnitus	12/13 (92.3)	2/9 (22.2)	0.001
Secondary outcomes
Papilledema Frisén grade
Pre-op	3 [3, 3]	3 [2, 3]	0.482
Post-op	1 [0, 1]	2 [1, 2]	<0.001
LP opening pressure
Pre-op (mmH2O)	392.27±87.88	377.33±69.73	0.304
Post-op (mmH2O)	210.86±60.24	241.12±58.34	0.006
Stenosis pressure gradient
Pre-op (mmHg)	20.23±7.65	19.84±7.81	0.781
Post-op (mmHg)	1.98±2.51	3.72±3.79	0.004
Safety outcomes/complications			0.755
Puncture site hematoma	0	1/58 (1.7)
Recurrent in situ stenosis	2/64 (3.1)	5/58 (8.6)
Distal stent thrombosis	1/64 (1.6)	N/A
Distal stent stenosis	2/64 (3.1)	N/A

Data are presented as mean ± SD, n/N (%) or median [IQR]. IQR, interquartile range; LP, lumbar puncture; SD, standard deviation; N/A, not applicable.