Table 3

Results from univariate statistical analysis for all variables in the midterm angiographic follow-up results

CharacteristicsFavourable outcome (N=117)Unfavourable outcome (N=15)P value
Patient baseline characteristics
Age56.5±9.952.3±9.60.123
Gender (%)0.700
 Male45 (38.5)5 (33.3)
 Female72 (61.5)10 (66.7)
Smoking (%)16 (13.7)3 (20.0)0.790
Drinking (%)12 (10.3)2 (13.3)﹥0.999
Hypertension (%)55 (47.0)5 (33.3)0.317
Rupture (%)9 (7.7)3 (20.0)0.278
Aneurysm morphological characteristics
 Aneurysm size (mm)7.8±5.58.7±5.10.530
 AR1.24±0.631.55±0.710.083
 SR2.31±1.422.90±1.680.176
 Shape (%)0.540
  Regular72 (61.5)8 (53.3)
  Irregular45 (38.5)7 (46.7)
 Location (%)0.457
 Anterior circulation106 (90.6)15 (100.0)
 Posterior circulation11 (9.4)0 (0)
 Sidewall/bifurcation aneurysm (%)0.608
 Sidewall78 (66.7)9 (60.0)
 Bifurcation39 (33.3)6 (40.0)
Treated-related factors
 Treatment therapy (%)0.129
 Coiling21 (17.9)6 (40.0)
 Stent-assisted coiling70 (59.8)6 (40.0)
 Flow diverter26 (22.2)3 (20.0)
 Packing density (%)23.8±16.018.5±12.10.213
 Follow-up period (months)18.5±5.518.8±5.70.850
Haemodynamic changes
 The RR of velocity at the aneurysm neck (%)57.5±22.737.4±19.20.001
 The RR of WSS at the aneurysm neck (%)*39.4 (66.1)33.3 (41.6)0.310
 The RR of velocity at the aneurysm dome (%)71.5±37.367.1±23.00.654
 The RR of WSS at the aneurysm dome62.6±23.159.6±24.00.648
  • *The data were expressed as median (quartile).

  • RR, reduction ratio; WSS, wall shear stress.