Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

116 questions · 120 findings · 4 reviews · Vascular

No studies found 42 · 35%GRADE not reported 5 · 4.2%Very low 13 · 10.8%Low 28 · 23.3%Moderate 32 · 26.7%High 0 · 0%

Foam sclerotherapy vs foam sclerotherapy

Cosmetic appearance · participants with varicose veinsa

It is very uncertain whether foam sclerotherapy changes cosmetic appearance (self‐described cosmetic improvement) compared with foam sclerotherapy (very low certainty).

1 finding from 1 review

Foam sclerotherapy vs foam sclerotherapy

Number of thromboembolic complications · participants with varicose veinsa

It is very uncertain whether foam sclerotherapy changes complications ‐ thromboembolic compared with foam sclerotherapy (very low certainty).

1 finding from 1 review