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Table 2 Risk factors for retreatment after endovascular coiling of anterior communicating artery aneurysm

From: Recurrence and retreatment of anterior communicating artery aneurysms after endovascular treatment: a retrospective study

     Univariate analysis Multivariate analysis
(N = 260)   Retreatment (n = 10) No retreatment (n = 250) OR (95% CI) P-value OR (95% CI) P-value
Patient factor Male 4 (40%) 130 (52%) 0.62 (0.15–2.21) 0.46   
Age (year) 50.7 ± 12.3 57.9 ± 10.9 0.94 (0.89–1.00) 0.04* 0.95 (0.88–1.01) 0.12
Hypertension (%) 6 (60) 151 (60.4) 0.98 (0.27–3.93) 0.97   
Smoking (%) 4 (40) 111 (44.4) 0.83 (0.21–2.99) 0.78   
Aneurysm factor Ruptured (%) 8 (80) 69 (27.6) 10.4 (2.55–70.6) 0.003* 14.7 (2.77–127.9) 0.004*
Maximal diameter 7.15 ± 3.7 5.27 ± 2.2 1.25 (1.02–1.50) 0.01* 1.56 (1.05–2.36) 0.02 *
Size ratio 2.9 ± 2.0 2.3 ± 1.1 1.35 (0.87–1.90) 0.11   
Inflow angle 162.8 ± 27.8 148.0 ± 28.8 1.02 (1.00–1.06) 0.12 1.04 (1.01–1.09) 0.03*
Dome direction (Anterior, %) 7 (70) 138 (55.2) 1.89 (1.51–8.94) 0.036 5.03 (0.97–36.6) 0.07
Hypoplastic A1 (%) 3 (30) 79 (31.6) 0.93 (0.20–3.43) 0.91   
Treatment factor Stent usage (5) 1 (10) 51 (20.4) 0.43 (0.02–2.39) 0.43   
Raymond
class
(II or III, %))
6 (60) 87 (34.8) 2.81 (1.78–11.24) 0.01* 6.19 (1.19–40.8) 0.03*
  1. OR Odds ratio, CI Confidence interval
  2. * Variable significantly related to retreatment