Findings

What do systematic reviews say?

Refine by population, intervention, comparison or outcome
More filters
Evidence found and GRADE certainty

4,918 questions · 5,537 findings · 1,803 reviews

No studies found 1,309 · 23.6%GRADE not reported 440 · 7.9%Very low 1,560 · 28.2%Low 1,292 · 23.3%Moderate 751 · 13.6%High 185 · 3.3%

Ranked among the 5,000 newest matching findings; add words or filters to narrow the search.

Intervention not reported

Any adverse events during the trial period · all trials contributing results to the summary of findings table included people with mild disease (WHO scale 1 to 3)§

The intervention showed no clear difference in any adverse events during the trial period (low certainty).

1 finding from 1 review

Intervention not reported

Any adverse events during the trial period · people with moderate to severe disease (WHO scale 4–9); all trials contributing results to the summary of findings table investigated…

The intervention showed no clear difference in any adverse events during the trial period (low certainty).

1 finding from 1 review

Children: formoterol/fluticasone vs regular salmeterol and fluticasone

Non‐fatal serious adverse events · children with chronic asthma

Children: formoterol/fluticasone showed no clear difference in all‐cause non‐fatal serious adverse events compared with salmeterol/fluticasone (low certainty).

1 finding from 1 review

Azithromycin vs placebo or usual care

Adverse events during treatment period · people with moderate to severe disease (WHO scale 4–9); all studies contributing results to the summary of findings table included people…

Azithromycin showed no clear difference in any adverse events during the study period compared with placebo or standard of care alone (low certainty).

1 finding from 1 review

Vitamin D plus calcium vs placebo

Adverse events: serum calcium above normal · relatively healthy postmenopausal women

Vitamin D plus calcium showed no clear difference in adverse events: serum calcium above normal compared with placebo (low certainty).

1 finding from 1 review

Alarm vs desmopressin

Proportion of children with adverse events · children with nocturnal enuresis

Alarm probably leads to lower proportion of children with adverse events compared with desmopressin (moderate certainty).

1 finding from 1 review

Long‐term red cell transfusion vs no transfusion

Adverse events associated with transfusion · individuals with sickle cell disease who are at risk of a primary stroke who have not had previous long‐term red cell transfusions

It is very uncertain whether long‐term red cell transfusion changes adverse events associated with transfusion compared with no transfusion (very low certainty).

1 finding from 1 review