Clinical characteristics of 421 patients who underwent endovascular treatment of unruptured intracranial aneurysms
| Age (yr) (n = 420) | |
| Mean | 56 |
| Median | 56 |
| Interquartile range | 47–67 |
| Range | 15–88 |
| Female sex (n = 421) | 326 (77%) |
| Race (n = 307) | |
| White | 237 (77%) |
| Black | 24 (8%) |
| Hispanic | 22 (7%) |
| Asian/Pacific Islands | 10 (3%) |
| Native American | 3 (1%) |
| Other | 11 (4%) |
| Median household income for ZIP code of residence (n = 405) | |
| <$25,000 | 36 (9%) |
| $25,000–$34,999 | 117 (29%) |
| $35,000–$44,999 | 122 (30%) |
| >$45,000 | 130 (32%) |
| Primary payer (n = 421) | |
| Medicare | 113 (27%) |
| Medicaid | 28 (7%) |
| Private insurance | 257 (61%) |
| Self-pay | 6 (1%) |
| No charge | 2 (0.5%) |
| Other | 15 (4%) |
| Admission type (n = 279) | |
| Emergency | 19 (7%) |
| Urgent | 42 (15%) |
| Routine | 218 (78%) |
| Admission source (n = 417) | |
| Emergency ward | 7 (2%) |
| Transfer from acute care hospital | 21 (5%) |
| Transfer from long term care | 11 (3%) |
| Routine | 378 (91%) |
| Year of treatment | |
| 1996 | 30 (7%) |
| 1997 | 82 (19%) |
| 1998 | 57 (14%) |
| 1999 | 125 (30%) |
| 2000 | 127 (30%) |