Analysis of risk factors for recanalization during follow-up surveillance of all study participants
| Variable | Recanalization (%) | Univariate analysis | Multivariate analysis | OR (95% CI) | |
| No (n=556) | Yes (n=111) | P value | P value | ||
| Women (n (%)) | 358 (64.4) | 84 (75.7) | 0.045 | 0.33 | |
| Age >60 (years) (n (%)) | 271 (48.7) | 51 (45.9) | 0.58 | ||
| Hypertension (n (%)) | 304 (54.7) | 57 (51.4) | 0.64 | ||
| Diabetes mellitus (n (%)) | 75 (13.5) | 10 (9.0) | 0.24 | ||
| Hyperlipidemia (n (%)) | 252 (45.3) | 39 (35.1) | 0.13 | ||
| Smoking (n (%)) | 79 (14.2) | 19 (17.1) | 0.37 | ||
| Maximum size (>7 mm) (n (%)) | 64 (11.5) | 50 (45.0) | <0.01 | <0.01 | 2.530 (1.501 to 4.264) |
| Neck size (>4 mm) (n (%)) | 97 (17.4) | 52 (46.8) | <0.01 | 0.04 | 1.742 (1.034 to 2.935) |
| SAH presentation (n (%)) | 57 (10.3) | 22 (19.8) | <0.01 | 0.02 | 1.806 (1.102 to 2.961) |
| Depth to neck ratio (>1.5) (n (%)) | 149 (26.8) | 43 (38.7) | 0.03 | 0.39 | 1.205 (0.788 to 1.843) |
| Retreatment with recanalization (n (%)) | 52 (9.4) | 30 (27.0) | <0.01 | <0.01 | 1.876 (1.192 to 2.953) |
| Successful Initial occlusion (n (%)) | 395 (71.0) | 74 (66.7) | 0.21 | ||
| Stent protection (n (%)) | 160 (28.8) | 37 (33.3) | 0.35 | ||
| PcoA location (n (%)) | 193 (34.7) | 66 (59.5) | <0.01 | <0.01 | 1.984 (1.318 to 2.986) |
PcoA; posterior communicating artery; SAH; subarachnoid hemorrhage.