| Treatment | RR | 95% CI lower limit | 95% CI upper limit | z | P |
| Dobutamine | 1.2606 | 0.6492 | 2.4476 | 0.68 | 0.4939 |
| Levosimendan + Dobutamine | 0.2459 | 0.0389 | 1.5542 | ‐1.49 | 0.1359 |
| Milrinone | 1.3656 | 0.7118 | 2.6200 | 0.94 | 0.3486 |
| Milrinone + Dobutamine | 1.7215 | 0.4668 | 6.3490 | 0.82 | 0.4146 |
| Milrinone LD | 1.5987 | 0.6561 | 3.8954 | 1.03 | 0.3018 |
| Placebo | 1.8625 | 0.8338 | 4.1602 | 1.52 | 0.1293 |
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