Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

142 questions · 148 findings · 15 reviews

No studies found 64 · 43.2%GRADE not reported 2 · 1.4%Very low 33 · 22.3%Low 29 · 19.6%Moderate 18 · 12.2%High 2 · 1.4%

Acupuncture vs sham

Number of participants reporting an adverse event · people with episodic migraine

Acupuncture showed no clear difference in number of participants reporting adverse effects compared with sham interventions (high certainty).

1 finding from 1 review

Acupuncture vs prophylactic drugs

Adverse effects (drop‐outs due to adverse effects4) · people with episodic migraine

Acupuncture probably leads to lower number of participants dropping out due to adverse effects compared with prophylactic drugs (moderate certainty).

1 finding from 1 review

Acupuncture vs prophylactic drugs

Number of participants reporting an adverse event · people with episodic migraine

Acupuncture probably leads to lower number of participants reporting adverse effects compared with prophylactic drugs (moderate certainty).

1 finding from 1 review

Acupuncture vs sham

Response (after treatment) · people with episodic migraine

Acupuncture probably leads to higher response (after treatment) compared with sham interventions (moderate certainty).

1 finding from 1 review