Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

2,359 questions · 2,491 findings · 249 reviews

No studies found 696 · 27.9%GRADE not reported 213 · 8.6%Very low 611 · 24.5%Low 595 · 23.9%Moderate 315 · 12.6%High 61 · 2.4%

Intervention not reported

No active intervention(2 RCTs, 256 participants) · people with liver cirrhosis and oesophageal varices with no history of bleeding

It is very uncertain whether the intervention changes no active intervention(2 RCTs, 256 participants) (very low certainty).

1 finding from 1 review

Intervention not reported

No active intervention(2 RCTs, 208 participants) · people with liver cirrhosis and oesophageal varices with no history of bleeding

It is very uncertain whether the intervention changes no active intervention(2 RCTs, 208 participants) (very low certainty).

1 finding from 1 review

Oral iron sulphate vs oral iron hydroxide polymaltose complex

Serious adverse events ‐ active or inactive disease (14 days) · IBD patients

It is very uncertain whether oral iron sulphate changes serious adverse events ‐ active or inactive disease (14 days) compared with oral iron hydroxide polymaltose complex (very low certainty).

1 finding from 1 review

Lamotrigine vs lithium

Recurrence of any episodes at one year (active suicidal behavior) · bipolar disorder

It is very uncertain whether lamotrigine changes recurrence of any episodes at one year (active suicidal behavior) compared with lithium (very low certainty).

1 finding from 1 review

Spectacle correction vs no spectacles

Proportion of children without refractive error in the emmetropization range at 3 years · infants or children with hyperopia

It is very uncertain whether spectacle correction changes proportion of children without refractive error in the… compared with no spectacles (very low certainty).

1 finding from 1 review