Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

3,696 questions · 3,815 findings · 855 reviews

No studies found 573 · 15%GRADE not reported 374 · 9.8%Very low 993 · 26%Low 1,062 · 27.8%Moderate 614 · 16.1%High 199 · 5.2%

Early vs delayed open or laparoscopic appendicectomy

Time away from normal activities (days) · paediatric and adult patients with appendiceal phlegmon

It is very uncertain whether early changes time away from normal activities (days) Median compared with delayed open or laparoscopic appendicectomy (very low certainty).

1 finding from 1 review

Surgical thrombectomy vs different types of endovascular interventions

Patency at 30 days · thrombosed haemodialysis arteriovenous fistulas and grafts

It is very uncertain whether surgical thrombectomy changes patency at 30 days compared with different types of endovascular interventions (very low certainty).

1 finding from 1 review

Intervention not reported

Death from bleeding complications (up to 30 days · vascular surgery patients who undergo creation of an anastomosis

The review found no eligible studies for this question.

1 finding from 1 review

Intervention not reported

Postoperative bleeding (up to 30 days · vascular surgery patients who undergo creation of an anastomosis

The intervention showed no clear difference in postoperative bleeding (up to 30 days (low certainty).

1 finding from 1 review

Intervention not reported

Unplanned return to the operating room (up to 30 days · vascular surgery patients who undergo creation of an anastomosis

The intervention showed no clear difference in unplanned return to the operating room (up to 30 days (low certainty).

1 finding from 1 review

L‐arginine vs placebo

Frequency of hospitalization (number of days in hospital) · sickle cell disease

It is very uncertain whether L‐arginine changes frequency of hospitalization (number of days in hospital) compared with placebo (very low certainty).

1 finding from 1 review