Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

1,935 questions · 1,986 findings · 260 reviews · Headline outcomes only

No studies found 503 · 25.3%GRADE not reported 76 · 3.8%Very low 593 · 29.9%Low 509 · 25.6%Moderate 241 · 12.1%High 64 · 3.2%

Active stimulation + other intervention vs other intervention alone

Adverse events: need for reoperation/ reimplantation · adults with chronic pain

The review found no eligible studies for this question.

2 findings from 1 review

Active stimulation + other intervention vs other intervention alone

Pain intensity (number of people with ≥ 50% improvement) · adults with chronic pain

Active stimulation + other intervention may leads to higher pain intensity. Proportion with ≥50% pain relief. compared with other intervention alone (low certainty).

2 findings from 1 review