Variable | Without contrast sac filling (n=509) | Contrast sac filling (n=206) | Univariate analysis (p value) | Multivariate analysis (p value) | OR (95% CI) |
---|---|---|---|---|---|
Sex (n (%)) | |||||
Male | 175 (34.4) | 43 (20.9) | 1 | ||
Female | 334 (65.6) | 163 (79.1) | <0.01 | 0.02 | 1.59 (1.06 to 2.39) |
Age (years) (mean±SD) | 57.9±10.2 | 59.9±9.6 | 0.01 | 0.01 | 1.03 (1.01 to 1.05) |
Location (n (%)) | |||||
Anterior circulation | 418 (82.1) | 164 (79.6) | |||
Posterior circulation | 91 (17.9) | 42 (20.4) | 0.44 | ||
Sac size (mm) (mean±SD) | 4.8±1.7 | 4.5±1.7 | 0.01 | 0.01 | 0.85 (0.76 to 0.94) |
Neck size (mm) (mean±SD) | 3.5±1.3 | 3.5±1.5 | 0.60 | ||
Branch relation (n (%)) | |||||
No | 142 (27.9) | 102 (49.5) | 1 | ||
Yes | 367 (72.1) | 104 (50.5) | 0.01 | <0.01 | 0.36 (0.25 to 0.51) |
Depth to neck ratio (n (%)) | |||||
≤1 | 228 (44.8) | 117 (56.8) | 1 | ||
>1 | 281 (55.2) | 89 (43.2) | 0.01 | 0.01 | 0.55 (0.39 to 0.78) |
Attempts (n (%)) | |||||
First | 457 (89.8) | 193 (93.7) | 1 | ||
Second | 52 (10.2) | 13 (6.3) | 0.10 | 0.35 | 0.72 (0.37 to 1.42) |
p<0.05 is significant.