Table 4.
The sAs combined with ASA-PS (SASA) according to perioperative factors and 30-day mortality
| Total (N = 24,318) | 0–8 (N = 119) | 9–12 (N = 2002) | 13–16 (N = 12,687) | 17–20 (N = 9510) | P value | |
|---|---|---|---|---|---|---|
| ASA-PS | ||||||
| 1 | 6293 (25.9%) | – | 13 (0.6%) | 806 (6.4%) | 5474 (57.6%) | <0.001 |
| 2 | 13,782 (56.7%) | 2 (1.7%) | 633 (31.6%) | 9111 (71.8%) | 4036 (42.4%) | |
| 3 | 4113 (16.9%) | 70 (58.8%) | 1286 (64.2%) | 2757 (21.7%) | – | |
| 4 | 123 (0.5%) | 42 (35.3%) | 68 (3.4%) | 13 (0.1%) | – | |
| 5 | 7 (0.0%) | 5 (4.2%) | 2 (0.1%) | – | – | |
| SAS | ||||||
| 0–2 | 156 (0.6%) | 91 (76.5%) | 65 (3.2%) | – | – | <0.001 |
| 3–4 | 1086 (4.5%) | 26 (21.8%) | 888 (44.4%) | 172 (1.4%) | – | |
| 5–6 | 3903 (16.0%) | 2 (1.7%) | 1007 (50.3%) | 2894 (22.8%) | – | |
| 7–8 | 11,906 (49.0%) | – | 41 (2.0%) | 8816 (69.5%) | 3049 (32.1%) | |
| 9–10 | 7267 (29.9%) | – | 1 (0.0%) | 805 (6.3%) | 6461 (67.9%) | |
| Age (years) | 55.2 ± 17.1 | 56.6 ± 16.8 | 58.6 ± 16.7 | 58.4 ± 16.4 | 50.2 ± 17.0 | <0.001 |
| Women | 13,020 (53.5%) | 39 (32.8%) | 903 (45.1%) | 6468 (51.0%) | 5610 (59.0%) | <0.001 |
| BMI (kg/m2) | 22.4 ± 3.8 | 22.1 ± 4.0 | 22.6 ± 4.3 | 22.6 ± 3.9 | 22.1 ± 3.4 | <0.001 |
| Estimated blood loss | ||||||
| Median [IQR] (ml) | 40 [10–190] | 1640 [940–3225] | 612 [132–1195] | 60 [15–281] | 19 [5–50] | <0.001 |
| >1000 | 1337 (5.5%) | 87 (73.1%) | 678 (33.9%) | 570 (4.5%) | 2 (0.0%) | <0.001 |
| 601–1000 | 1317 (5.4%) | 13 (10.9%) | 331 (16.5%) | 908 (7.2%) | 65 (0.7%) | |
| 101–600 | 5324 (21.9%) | 14 (11.8%) | 568 (28.4%) | 3795 (29.9%) | 947 (10.0%) | |
| ≤100 | 16,340 (67.2%) | 5 (4.2%) | 425 (21.2%) | 7414 (58.4%) | 8496 (89.3%) | |
| Lowest mean arterial pressure | ||||||
| Mean ± SD (mmHg) | 56.9 ± 12.9 | 42.7 ± 11.4 | 48.6 ± 11.3 | 54.2 ± 12.1 | 62.4 ± 11.9 | <0.001 |
| <40 | 1247 (5.1%) | 44 (37.0%) | 407 (20.3%) | 683 (5.4%) | 113 (1.2%) | <0.001 |
| 40–54 | 9956 (40.9%) | 67 (56.3%) | 1143 (57.1%) | 6905 (54.4%) | 1841 (19.4%) | |
| 55–69 | 9767 (40.2%) | 6 (5.0%) | 381 (19.0%) | 4030 (31.8%) | 5350 (56.3%) | |
| ≥70 | 3348 (13.8%) | 2 (1.7%) | 71 (3.5%) | 1069 (8.4%) | 2206 (23.2%) | |
| Lowest heart rate | ||||||
| Mean ± SD (bpm) | 54.6 ± 10.8 | 85.9 ± 15.7 | 67.6 ± 14.5 | 55.6 ± 10.2 | 50.2 ± 6.8 | <0.001 |
| >85 | 426 (1.8%) | 58 (48.7%) | 237 (11.8%) | 131 (1.0%) | <0.001 | |
| 76–85 | 707 (2.9%) | 36 (30.3%) | 285 (14.2%) | 365 (2.9%) | 21 (0.2%) | |
| 66–75 | 2189 (9.0%) | 18 (15.1%) | 568 (28.4%) | 1433 (11.3%) | 170 (1.8%) | |
| 56–65 | 5951 (24.5%) | 5 (4.2%) | 563 (28.1%) | 3959 (31.2%) | 1424 (15.0%) | |
| ≤55 | 15,045 (61.9%) | 2 (1.7%) | 349 (17.4%) | 6799 (53.6%) | 7895 (83.0%) | |
| Emergency procedure | 2525 (10.4%) | 95 (79.8%) | 545 (27.2%) | 1342 (10.6%) | 543 (5.7%) | <0.001 |
| Operative duration (h) | 2.7 ± 1.9 | 3.3 ± 2.4 | 3.6 ± 2.4 | 2.9 ± 1.9 | 2.3 ± 1.5 | <0.001 |
| Anesthesia duration (h) | 3.7 ± 2.2 | 4.2 ± 2.8 | 4.7 ± 2.9 | 4.0 ± 2.2 | 3.2 ± 1.8 | <0.001 |
| 30-Day mortality | 123 (0.51%) | 21 (17.65%) | 57 (2.84%) | 42 (0.33%) | 3 (0.03%) | <0.001 |