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What do systematic reviews say?

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Evidence found and GRADE certainty

36 questions · 37 findings · 2 reviews · Headline outcomes only

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No studies found 19 · 51.4%GRADE not reported 0 · 0%Very low 12 · 32.4%Low 5 · 13.5%Moderate 1 · 2.7%High 0 · 0%

Alternating pressure (active) air surfaces vs foam surfaces

Proportion of participants developing a new pressure ulcer · pressure ulcer prevention

Alternating pressure (active) air surfaces showed no clear difference in proportion of participants developing a new pressure ulcer compared with foam surfaces (low certainty).

1 finding from 1 review

Alternating pressure (active) air surfaces vs reactive water‐filled surfaces

Proportion of participants developing a new pressure ulcer · pressure ulcer prevention

It is very uncertain whether alternating pressure (active) air surfaces changes proportion of participants developing a new pressure ulcer compared with reactive water‐filled surfaces (very low certainty).

1 finding from 1 review

Alternating pressure (active) air surfaces vs reactive fibre surfaces

Proportion of participants developing a new pressure ulcer · pressure ulcer prevention

It is very uncertain whether alternating pressure (active) air surfaces changes proportion of participants developing a new pressure ulcer compared with reactive fibre surfaces (very low certainty).

1 finding from 1 review