Beta‐blockers vs placebo or no intervention: Myocardial infarction
Beta‐blockers showed no clear difference in myocardial infarction at maximum compared with placebo or no intervention (low certainty).
What each review found
Current versions only| Finding | Effect | Studies | GRADE certainty |
|---|---|---|---|
Beta‐blockers vs placebo or no intervention Myocardial infarction at maximum · patients with suspected or diagnosed myocardial infarction Beta‐blockers showed no clear difference in myocardial infarction at maximum compared with placebo or no intervention (low certainty). Beta‐blockers for suspected or diagnosed acute myocardial infarction (2019) · Cochrane Headline outcomes only | RR 0.89 [0.75, 1.08] | 14 studies · 6825 participants | Low |
Beta‐blockers vs placebo or no intervention Myocardial infarction at 'less than 3 months' · patients with suspected or diagnosed myocardial infarction Beta‐blockers probably leads to lower myocardial infarction at 'less than 3 months' compared with placebo or no intervention (moderate certainty). Beta‐blockers for suspected or diagnosed acute myocardial infarction (2019) · Cochrane Headline outcomes only | RR 0.82 [0.74, 0.9] | 18 studies · 67562 participants | Moderate |
Findings are shown side by side, never pooled across reviews.
The reviews
| Review | Searched up to | Included studies | AMSTAR 2 |
|---|---|---|---|
| Beta‐blockers for suspected or diagnosed acute myocardial infarction 2019 · Cochrane Headline outcomes only | Not reported | list not extracted yet | Not assessed |
Studies behind the findings
None of these reviews ties its included studies to this outcome in the data here. Cochrane reviews and reviews with headline outcomes only do not list their studies yet.
How reviews are matched to this question
Reviews word the same question differently. Four decision models (TypeSafe's Jev, Liquid AI's d1-ultra, SubQ Snap and Baseten's Elephant) judged each wording of the population, intervention, comparator and outcome against the others; two wordings count as the same when at least three of them agree and none clearly disagrees, and findings count as this question only when all four elements match. Timing, setting and subgroup never split a question: they are shown on each finding.