Baseline demographics and aneurysm characteristics
| Subject Characteristics | Statin Use | No Statin Use | P Value |
|---|---|---|---|
| Age (yr) | <.001 | ||
| Mean ± SD (No.) | 64.6 ± 9.6 (225) | 55.5 ± 14.0 (863) | |
| Median (range) | 65.0 (39.0–85.0) | 56.0 (3.0–89.0) | |
| Sex | .251 | ||
| Male | 15.9% (36/226) | 19.4% (168/866) | |
| Female | 84.1% (190/226) | 80.6% (698/866) | |
| Hypertension | |||
| Yes | 75.5% (123/163) | 41.1% (289/703) | <.001 |
| Controlled | 91.3% (95/104) | 83.5% (207/248) | .065 |
| Not controlled | 22.1% (36/163) | 53.8% (378/703) | |
| No. of aneurysms | 265 | 956 | |
| Aneurysm size (mm) | .716 | ||
| Mean ± SD (No.) | 11.6 ± 7.0 (261) | 12.1 ± 8.0 (950) | |
| Median (range) | 10.2 (1.5–32.6) | 10.2 (0.9–55.0) | |
| Aneurysm neck (mm) | .868 | ||
| Mean ± SD (No.) | 6.6 ± 4.9 (231) | 6.6 ± 4.8 (891) | |
| Median (range) | 5.6 (0.6–53.0) | 5.3, (0.0–50.0) | |
| Aneurysm size | .385 | ||
| Small | 36.4% (95/261) | 39.9% (379/950) | |
| Large | 54.8% (143/261) | 50.0% (475/950) | |
| Giant | 8.8% (23/261) | 10.1% (96/950) | |
| Aneurysm type | .001 | ||
| Saccular | 70.9% (188/265) | 76.3% (729/956) | |
| Fusiform | 20.8% (55/265) | 14.9% (142/956) | |
| Dissecting | 1.9% (5/265) | 5.8% (55/956) | |
| Other | 6.4% (17/265) | 3.1% (30/956) | |
| Aneurysm location | .208 | ||
| Internal carotid artery | 81.9% (217/265) | 79.5% (760/956) | |
| Middle cerebral artery | 2.6% (7/265) | 4.1% (39/956) | |
| Posterior cerebral artery | 0.0% (0/265) | 1.7% (16/956) | |
| Basilar artery | 4.5% (12/265) | 4.0% (38/956) | |
| Other | 10.9% (29/265) | 10.8% (103/956) | |
| Presented with ruptured aneurysm | 4.5% (12/265) | 6.7% (64/956) | .197 |
| Multiple PEDs used | 43.9% (116/264) | 35.2% (336/954) | .009 |