Patient characteristics
| Clipping | Endovascular therapy | z-value | |
|---|---|---|---|
| Age, mean (SD) | 70.5 (4.0) | 72.7 (5.5) | −2.3 |
| Male gender | 625 (24.3%) | 1630 (26.6%) | −18.6 |
| African-Americans | 169 (6.6%) | 431 (7%) | −0.8 |
| Income* | $46 900 (17 000) | $46 000 (17 100) | −2.3 |
| Poverty* | 233 (9%) | 483 (7.9%) | −3.7 |
| Comorbidities† | |||
| Hypertension | 1354 (52.6%) | 2356 (53.1%) | −0.5 |
| Hyperlipidemia | 531 (20.6%) | 1339 (22.8%) | −2.3 |
| Chronic obstructive pulmonary disease (COPD) | 76 (3.0%) | 156 (2.5%) | 1.1 |
| Myocardial infarction | 328 (12.7%) | 983 (16.0%) | −3.9 |
| Cardiac arrhythmia | 139 (5.4%) | 535 (8.7%) | −5.3 |
| Coagulopathy | 19 (0.7%) | 65 (1.1%) | −1.4 |
| Renal insufficiency | 66 (2.6%) | 258 (4.2%) | −3.7 |
| Congestive heart failure | 67 (2.6%) | 309 (5.0%) | −5.1 |
| Pulmonary disease‡ | 75 (2.9%) | 147 (2.4%) | 1.4 |
| Obesity | 19 (0.7%) | 46 (0.8%) | −0.01 |
| Alcohol abuse | § | 14 (0.2%) | § |
| Dementia | 17 (0.7%) | 82 (1.3%) | −2.7 |
| Ischemic stroke | 263 (10.2%) | 754 (12.3%) | −2.8 |
| Diabetes | 332 (12.9%) | 918 (15.0%) | −2.5 |
| Peripheral vascular disease | 265 (10.3%) | 923 (15.1%) | −5.9 |
| Malignancy | 162 (6.3%) | 484 (7.9%) | −2.6 |
Output represents crude numbers and percentages in parentheses.
*The enrollee's ZIP code was used to match to 2010 census data on income and poverty.
†Based on 12-month look-back before the date of the procedure. ‡Non-COPD. §Output suppressed to comply with the reporting rules of Medicare, which do not allow printing of output involving >11 patients.