Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

864 questions · 895 findings · 140 reviews · Headline outcomes only

No studies found 202 · 22.6%GRADE not reported 53 · 5.9%Very low 227 · 25.4%Low 254 · 28.4%Moderate 131 · 14.6%High 28 · 3.1%

Printed educational material vs no intervention

Changes in professional practice (continuous) · Healthcare professionals
2 findings from 1 review

Environmental interventions vs no intervention

Blood lead levels (continuous)Blood lead level at end of duration Scale: 0–30 · children (aged 0–6 years)
2 findings from 1 review

Inhaled corticosteroids vs no treatment or placebo

Need for nasal continuous positive airway pressure · patients with the management of transient tachypnea of the newborn

It is very uncertain whether inhaled corticosteroids changes need for nasal continuous positive airway pressure compared with no treatment or placebo (very low certainty).

1 finding from 1 review