Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

4,771 questions · 10,185 findings · 893 reviews

No studies found 2,109 · 20.7%GRADE not reported 1,125 · 11%Very low 2,279 · 22.4%Low 2,514 · 24.7%Moderate 1,709 · 16.8%High 449 · 4.4%

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Intervention not reported

≥ 50% reduction in seizure frequency (adults) · people with drug‐resistant focal epilepsy

The intervention probably leads to higher ≥ 50% reduction in seizure frequency (adults) (moderate certainty).

1 finding from 1 review

Intervention not reported

≥ 50% reduction in seizure frequency (children aged 6–18 years) · people with drug‐resistant focal epilepsy

The intervention showed no clear difference in ≥ 50% reduction in seizure frequency (children aged 6–18 years) (moderate certainty).

1 finding from 1 review

Intervention not reported

Treatment withdrawal (any reason) · people with drug‐resistant focal epilepsy

The intervention showed no clear difference in treatment withdrawal (any reason) (moderate certainty).

1 finding from 1 review

Intervention not reported

Treatment withdrawal (adverse effect) · people with drug‐resistant focal epilepsy

The intervention probably leads to higher treatment withdrawal (adverse effect) (moderate certainty).

1 finding from 1 review