Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

628 questions · 651 findings · 39 reviews · Skin

No studies found 167 · 25.7%GRADE not reported 47 · 7.2%Very low 80 · 12.3%Low 139 · 21.4%Moderate 174 · 26.7%High 44 · 6.8%

Bleach bath vs placebo or bath emollient

Global outcome (good or excellent improvement in symptoms or signs, or both) · people with atopic dermatitis

Bleach bath showed no clear difference in global outcome (good or excellent improvement in symptoms or signs,… compared with placebo or bath emollient (low certainty).

1 finding from 1 review

Oral retinoids: alitretinoin 30 mg vs placebo

Primary: investigator‐rated good/excellent control of symptoms · people with moderate to severe chronic hand eczema

Oral retinoids: alitretinoin 30 mg leads to higher primary: investigator‐rated good/excellent control of symptoms compared with placebo (high certainty).

1 finding from 1 review

Oral retinoids: alitretinoin 30 mg vs placebo

Primary: participant‐rated good/excellent control of symptoms · people with moderate to severe chronic hand eczema

Oral retinoids: alitretinoin 30 mg leads to higher primary: participant‐rated good/excellent control of symptoms… compared with placebo (high certainty).

1 finding from 1 review

Oral retinoids: alitretinoin 30 mg vs placebo

Adverse effects: headache · people with moderate to severe chronic hand eczema

Oral retinoids: alitretinoin 30 mg leads to higher primary: adverse events ‐ headache Folluw‐up: 48 weeks to 72 weeks compared with placebo (high certainty).

1 finding from 1 review