Summary of findings table
| Outcome | Study population | Relative effect RR (95% CI) | Absolute effect NNT (95% CI) | Certainty of the evidence (GRADE) |
| In-hospital mortality | 9404 patients (17 studies) | 0.63 (0.55 to 0.72) | 29 (23 to 40) | ⊕⊕⊕ Moderate |
| 30-day mortality | 2978 patients (5 studies) | 0.62 (0.43 to 0.85) | 29 (19 to 63) | ⊕ Very low |
| Long-term mortality | 3544 patients (6 studies) | 0.61 (0.40 to 0.92) | 18 (12 to 40) | ⊕ Very low |
| Outcome | Study population | Mean difference | Certainty of the evidence (GRADE) |
| Door to balloon | 7395 (23 studies) | −28 (−36 to 20) min | ⊕ Very low |
GRADE, Grading of Recommendations Assessment, Development and Evaluation; NNT, number needed to treat; RR, relative risk.