Table 1. Characteristics and outcomes of patients admitted with a primary diagnosis of carotid artery stenosis/occlusion with infarction. Comparisons are performed between endovascular approaches for revascularization.
| Stent | Angioplasty alone | p | |
|---|---|---|---|
| N = 5,608 | N = 725 | ||
| Age | 69 (61–77) | 69 (57–76) | <0.001 |
| Male | 3610 (64.4) | 373 (51.4) | <0.001 |
| Coagulopathy | 210 (3.7) | 48 (6.6) | <0.001 |
| Hypertension | 4477 (79.8) | 553 (76.3) | 0.026 |
| Charlson comorbidity index | |||
| 0 | 1480 (26.4) | 236 (32.6) | <0.001 |
| 1 | 1727 (30.8) | 171 (23.6) | |
| 2 | 1178 (21.0) | 128 (17.7) | |
| >2 | 1224 (21.8) | 190 (26.2) | |
| APR-DRG risk of mortality | |||
| Moderate | 3818 (68.1) | 434 (59.9) | <0.001 |
| Major | 1149 (20.5) | 153 (21.1) | |
| Extreme | 642 (11.4) | 137 (18.9) | |
| Location/teaching status of hospital | |||
| Rural | 122 (2.2) | 23 (3.2) | 0.002 |
| Urban, nonteaching | 1431 (25.7) | 222 (30.8) | |
| Urban, teaching | 4024 (72.2) | 475 (66.0) | |
| Weekend admission | 1235 (22.0) | 189 (26.1) | 0.014 |
| Length of stay, d | 7 (4–11) | 9 (6–13) | <0.001 |
| Cost, $ | 29,223 (21,238–42,197) | 28,957 (20,597–54,091) | 0.035 |
| Iatrogenic stroke | 105 (1.9) | 28 (3.9) | <0.001 |
| Iatrogenic cardiac complication | 99 (1.8) | NR | 0.452 |
| Mortality | 211 (3.8) | 65 (9.0) | <0.001 |
| Discharge home | 2512 (44.8) | 273 (37.7) | <0.001 |
NR: not reportable as cell size ≤10