Perioperative characteristics
| Characteristic | Group; no. (%) | p value | ||
|---|---|---|---|---|
| All patients, n = 1340 | PAIS, n = 31 | No PAIS, n = 1309 | ||
| Type of surgery | 0.24 | |||
| General | 558 (41.6) | 12 (38.7) | 546 (41.7) | |
| Urological | 273 (20.3) | 6 (19.4) | 267 (20.4) | |
| Plastics | 75 (5.6) | 2 (6.5) | 73 (5.6) | |
| Gynecological | 74 (5.5) | 3 (9.7) | 71 (5.4) | |
| Orthopedic | 306 (22.8) | 6 (19.4) | 300 (22.9) | |
| Neurological | 38 (2.8) | 1 (3.2) | 37 (2.8) | |
| Ear/nose/throat | 16 (1.2) | 1 (3.2) | 15 (1.1) | |
| Preoperative medications | ||||
| Angiotensin-converting enzyme inhibitor | 431 (32.2) | 13 (41.9) | 418 (31.9) | 0.24 |
| β-blocker | 306 (22.8) | 7 (22.6) | 299 (22.8) | 0.97 |
| Statin | 130 (9.7) | 1 (3.2) | 129 (9.9) | 0.22 |
| Aspirin | 348 (25.9) | 11 (35.5) | 337 (25.7) | 0.22 |
| Calcium inhibitor | 199 (14.8) | 4 (12.9) | 195 (14.9) | 0.76 |
| Diuretics | 87 (6.5) | 2 (6.4) | 85 (6.5) | 0.98 |
PAIS = perioperative acute ischemic stroke.