Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

4,721 questions · 19,640 findings · 2,039 reviews · Headline outcomes only

No studies found 3,754 · 19.1%GRADE not reported 1,273 · 6.5%Very low 4,859 · 24.7%Low 5,568 · 28.4%Moderate 3,240 · 16.5%High 946 · 4.8%

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Primary health professional‐led or collaborative care vs usual or enhanced care

Depressive symptoms · women with perinatal depression

It is very uncertain whether primary health professional‐led collaborative care interventions changes depression symptoms ‐ intermediate term (1 to 6 months post… compared with usual or enhanced care (very low certainty).

1 finding from 1 review

Intervention not reported

Duration of continuous positive airway pressure therapy (hours or days) · preterm infants less than 30 weeks' gestational age requiring conventional mechanical ventilation for respiratory distress syndrome

The review found no eligible studies for this question.

1 finding from 1 review

Pressure‐garment therapy (PGT) vs no treatment/lanolin

Scar improvement (POSAS) (0–10, higher score = more severe scarring) · people with burn wounds likely to develop hypertrophic scarring
2 findings from 1 review

Pressure‐garment therapy (PGT) vs silicone

Scar improvement (POSAS) (0–10, higher score = more severe scarring) · people with burn wounds likely to develop hypertrophic scarring
2 findings from 1 review

Negative pressure wound therapy vs standard dressing

Mortality (proportion of participants dying in each group at · adult patients with surgical wounds healing by primary closure

Negative pressure wound therapy showed no clear difference in mortality (proportion of participants dying in each group at compared with standard dressing (low certainty).

1 finding from 1 review