Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

2,922 questions · 3,118 findings · 513 reviews

No studies found 574 · 18.4%GRADE not reported 372 · 11.9%Very low 723 · 23.2%Low 854 · 27.4%Moderate 489 · 15.7%High 106 · 3.4%

Aspirin vs placebo

Cardiovascular events · adults with hypertension (patients with atrial fibrillation, congestive heart failure, pre‐eclampsia or pulmonary hypertension were…

Aspirin may leads to lower all cardiovascular events compared with placebo (low certainty).

1 finding from 1 review