Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

230 questions · 243 findings · 23 reviews · Headline outcomes only

No studies found 52 · 21.4%GRADE not reported 10 · 4.1%Very low 85 · 35%Low 51 · 21%Moderate 37 · 15.2%High 8 · 3.3%

Intervention not reported

Oswestry Disability Index ‐ 2 years (0 to 100%) · lumbar spinal stenosis

The intervention showed no clear difference in oswestry Disability Index ‐ 2 years (0 to 100%) (low certainty).

1 finding from 1 review

Intervention not reported

Oswestry Disability Index ‐ 6 weeks · lumbar spinal stenosis

The intervention showed no clear difference in oswestry Disability Index ‐ 6 weeks (low certainty).

1 finding from 1 review

Intervention not reported

Visual Analogue Scale (VAS) ‐ 6 weeks · lumbar spinal stenosis

The intervention showed no clear difference in visual Analogue Scale (VAS) ‐ 6 weeks (low certainty).

1 finding from 1 review

Intervention not reported

Zurich Claudication Questionnaire ‐ 6 weeks · lumbar spinal stenosis

The intervention showed no clear difference in zurich Claudication Questionnaire ‐ 6 weeks (low certainty).

1 finding from 1 review

Intervention not reported

Adverse events, complications and morbidity associated with (adeno)tonsillectomy and comparators Expressed as the proportion of children experiencing a serious adverse event [7 months] · children with obstructive sleep‐disordered breathing
1 finding from 1 review