Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

383 questions · 414 findings · 46 reviews · Hypertension

No studies found 15 · 3.6%GRADE not reported 31 · 7.5%Very low 80 · 19.3%Low 148 · 35.7%Moderate 116 · 28%High 24 · 5.8%

Intervention not reported

Effect on systolic blood pressure (mean difference in systolic blood pressure) · adults with primary hypertension

The intervention showed no clear difference in effect on systolic blood pressure (mean difference in systolic blood… (moderate certainty).

1 finding from 1 review

Intervention not reported

Effect on diastolic blood pressure (mean difference in diastolic blood pressure) · adults with primary hypertension

The intervention showed no clear difference in effect on diastolic blood pressure (mean difference in diastolic… (moderate certainty).

1 finding from 1 review

Intervention not reported

Any adverse event · adults with primary hypertension

The intervention showed no clear difference in any adverse event (low certainty).

1 finding from 1 review

Intervention not reported

Adverse event leading to withdrawal · adults with primary hypertension

The intervention showed no clear difference in adverse event leading to withdrawal (low certainty).

1 finding from 1 review

Higher BP target (< 150‐160/95‐105 mmHg) vs lower BP target (< 140/90 mmHg)

Serious adverse events: cardiovascular events · older adults with primary hypertension

Higher BP target (< 150‐160/95‐105 mmHg) showed no clear difference in cardiovascular serious adverse events compared with lower BP target (< 140/90 mmHg) (low certainty).

1 finding from 1 review