Characteristics and imaging analysis results of the groups

Subgroup 1 (IIH with PT) (n = 42)Subgroup 2 (IIH without PT) (n = 37)Patients with IIH (Combined) (n = 79)Controls (n = 75)PP1P2
Rt stenosis >75%21 (50%)14 (38%)35 (44%)3 (4%).28<.001a<.001a
Lt stenosis >75%21 (50%)21 (57%)42 (53%)7 (9%).55<.001a<.001a
Rt or Lt stenosis >75%42 (50%)35 (47%)77 (49%)10 (7%).73<.001<.001a
Unilateral >75% stenosis16 (38%)15 (41%)33 (42%)10 (13%).82.002a<.001a
Bilateral >75% stenoses13 (31%)9 (24%)22 (28%)0.51<.001a<.001a
Unilateral or bilateral >75% stenosis29 (69%)24 (65%)55 (70%)10 (13%).69<.001a<.001a
Rt stenosis >50%30 (71%)28 (76%)58 (73%)6 (8%).67<.001a<.001a
Lt stenosis >50%33 (78%)32 (86%)65 (82%)19 (25%).36<.001a<.001a
Rt or Lt stenosis >50%63 (75%)60 (81%)123 (78%)25 (16%).36<.001a<.001a
Unilateral >50% stenosis7 (17%)10 (27%)17 (22%)21 (28%).26.17.35
Bilateral >50% stenoses28 (67%)25 (68%)53 (67%)2 (3%).93<.001a<.001a
Unilateral or bilateral >50% stenoses35 (83%)35 (94%)70 (89%)23 (31%).12<.001a<.001a
Rt diverticulum5 (12%)3 (8%)8 (10%)6 (8%).72.48.65
Lt diverticulum2 (5%)2 (5%)4 (5%)01.13.12
Rt or Lt diverticulum7 (8%)5 (7%)12 (8%)6 (4%).71.17.18
Unilateral diverticulum5 (12%)5 (14%)10 (13%)6 (8%).83.49.34
Bilateral diverticula1 (2%)01 (1%)01.361
Unilateral or bilateral diverticula6 (14%)5 (14%)11 (14%)6 (8%).92.28.24
Rt dehiscence24 (57%)16 (43%)40 (51%)28 (37%).22.04a.10
Lt dehiscence12 (29%)12 (32%)24 (30%)12 (16%).71.11.04a
Rt or Lt dehiscence36 (42%)28 (38%)64 (41%)40 (27%).52.01a.01a
Unilateral dehiscence18 (43%)12 (32%)30 (38%)26 (35%).34.38.70
Bilateral dehiscence9 (21%)8 (22%)17 (22%)7 (9%).98.07.04a
Unilateral or bilateral dehiscence27 (64%)20 (54%)47 (60%)33 (44%).36.04a.05a
  • Note:P indicates IIH with PT vs IIH without PT; P1, IIH with PT vs controls; P2, IIH (combined) vs controls; Rt, right; Lt, left.

  • a Significant.