Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

2,532 questions · 2,642 findings · 483 reviews · Headline outcomes only

No studies found 534 · 20.2%GRADE not reported 82 · 3.1%Very low 641 · 24.3%Low 807 · 30.5%Moderate 472 · 17.9%High 106 · 4%

First‐line beta‐blocker vs placebo

Total coronary heart disease · adults with primary hypertension

First‐line beta‐blocker showed no clear difference in total coronary heart disease compared with placebo (low certainty).

1 finding from 1 review

First‐line beta‐blocker vs placebo

Withdrawals due to adverse events · adults with primary hypertension

First‐line beta‐blocker may leads to higher withdrawal due to adverse effects compared with placebo (low certainty).

1 finding from 1 review