Table 3.
Distribution of cases by the RACHS-1 risk categories, the Aristotle basic complexity levels, and STS-EACTS mortality categories.
| RACHS-1 level | N (%) | ABC level | ABC score | Mean ABC score ± SD | N (%) | STS-EACTS category | STS-EACTS score | Mean STS-EACTS score ± SD | N (%) |
|---|---|---|---|---|---|---|---|---|---|
| I | 22 (9.6) | I | 1.5–5.9 | 3.2 ± 6.6 | 23 (10) | I | 0.1–0.3 | 0.19 ± 0.05 | 90 (39.1) |
| II | 118 (51.3) | II | 6–7.9 | 6.1 ± 0.3 | 106 (46.1) | II | 0.4–0.7 | 0.51 ± 0.06 | 64 (27.8) |
| III | 81 (35.2) | II | 8–9.9 | 8.4 ± 0.6 | 80 (34.8) | III | 0.8–1.2 | 0.84 ± 0.09 | 28 (12.2) |
| IV | 8 (3.5) | IV | 10–15 | 10.3 ± 0.5 | 21 (9.1) | IV | 1.3–2.6 | 1.61 ± 0.23 | 48 (20.9) |
| V | 1 (0.4) | V | 2.7–5 | — | 0 (0) | ||||
| VI | 0 (0) | ||||||||
| Total | 230 | 7.1 ± 1.9 | 230 | 0.65 ± 0.54 | 230 | ||||