Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

127 questions · 135 findings · 22 reviews

No studies found 33 · 24.4%GRADE not reported 19 · 14.1%Very low 45 · 33.3%Low 23 · 17%Moderate 10 · 7.4%High 5 · 3.7%

Hydrogel dressings vs povidone‐iodine

Adverse effects (surgical site infection or allergic reaction) · adults with open wounds after surgery for sacrococcygeal pilonidal sinus disease

It is very uncertain whether hydrogel dressing changes adverse effects (surgical site infection or allergic reaction) compared with wound cleaning with 10% povidone iodine (very low certainty).

1 finding from 1 review

Chlorhexidine vs povidone‐iodine

Adverse events (maternal) ‐ skin irritation or allergic skin reaction · women undergoing caesarean section

It is very uncertain whether chlorhexidine gluconate changes adverse events (maternal) ‐ skin irritation or allergic skin reaction compared with povidone iodine (very low certainty).

1 finding from 1 review