Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

219 questions · 233 findings · 21 reviews · Headline outcomes only

No studies found 83 · 35.6%GRADE not reported 24 · 10.3%Very low 57 · 24.5%Low 50 · 21.5%Moderate 19 · 8.2%High 0 · 0%

Reactive gel surfaces on operating tables followed by foam surfaces on ward beds vs alternating pressure (active) air surfaces on operating tables and subsequently on ward beds

Time to pressure ulcer development · preventing pressure ulcers

The review found no eligible studies for this question.

1 finding from 1 review

Reactive gel surfaces on operating tables followed by foam surfaces on ward beds vs alternating pressure (active) air surfaces on operating tables and subsequently on ward beds

Support surface associated patient comfort · preventing pressure ulcers

The review found no eligible studies for this question.

1 finding from 1 review

Reactive gel surfaces on operating tables followed by foam surfaces on ward beds vs alternating pressure (active) air surfaces on operating tables and subsequently on ward beds

Health‐related quality of life · preventing pressure ulcers

The review found no eligible studies for this question.

1 finding from 1 review

Reactive gel surfaces on operating tables followed by foam surfaces on ward beds vs alternating pressure (active) air surfaces on operating tables and subsequently on ward beds

Cost‐effectiveness · preventing pressure ulcers

The review found no eligible studies for this question.

1 finding from 1 review

Foam sclerotherapy vs placebo

Complications ‐ DVT · participants with varicose veinsa

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

1 finding from 1 review

Foam sclerotherapy vs placebo

Residual varicose veins · participants with varicose veinsa

It is very uncertain whether foam sclerotherapy changes residual varicose veins compared with placebo (very low certainty).

1 finding from 1 review

Ultrasound‐guided foam sclerotherapy vs SFJ ligation and stripping (HL/S)

Technical success · people with GSV incompetence

Ultrasound‐guided foam sclerotherapy (UGFS) may leads to lower technical success (< 5 years) compared with SFJ ligation and stripping (HL/S) (low certainty).

2 findings from 1 review