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What do systematic reviews say?

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Evidence found and GRADE certainty

958 questions · 991 findings · 123 reviews · Headline outcomes only

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No studies found 177 · 17.9%GRADE not reported 25 · 2.5%Very low 230 · 23.2%Low 321 · 32.4%Moderate 185 · 18.7%High 53 · 5.3%

Summary of findings: Single vs combination intravenous anti‐pseudomonal antibiotic therapy

Change in FEV1 % predicted at end of antibiotic course: absolute post‐treatment values · adults and children with cystic fibrosis

Summary of findings: single showed no clear difference in change in FEV1 % predicted at end of antibiotic course: absolute… compared with combination intravenous anti‐pseudomonal antibiotic therapy (low certainty).

1 finding from 1 review

Summary of findings: Single vs combination intravenous anti‐pseudomonal antibiotic therapy

Time to next course of antibiotics  · adults and children with cystic fibrosis

The review found no eligible studies for this question.

2 findings from 1 review

Summary of findings: Single vs combination intravenous anti‐pseudomonal antibiotic therapy

Adverse events during treatment · adults and children with cystic fibrosis

The review found no eligible studies for this question.

2 findings from 1 review

Summary of findings: Single vs combination intravenous anti‐pseudomonal antibiotic therapy

Change in sputum P aeruginosa density at end of treatment (cfu/g) · adults and children with cystic fibrosis

Summary of findings: single showed no clear difference in change in sputum P aeruginosa density at end of treatment (cfu/g) compared with combination intravenous anti‐pseudomonal antibiotic therapy (moderate certainty).

2 findings from 1 review

Summary of findings: Single vs combination intravenous anti‐pseudomonal antibiotic therapy

Need for extra treatment · adults and children with cystic fibrosis

The review found no eligible studies for this question.

2 findings from 1 review

Percutaneous vascular interventions vs intravenous thrombolytic treatment

Symptomatic intracranial haemorrhage at

Percutaneous vascular interventions showed no clear difference in symptomatic intracranial haemorrhage within first 14 days compared with intravenous thrombolytic treatment (low certainty).

1 finding from 1 review

Epidural analgesia vs intravenous patient‐controlled analgesia

All‐cause mortality rate at 30 days · adults having abdominal surgery

Epidural analgesia showed no clear difference in all‐cause mortality rate at 30 days compared with intravenous patient‐controlled analgesia (low certainty).

1 finding from 1 review

Epidural analgesia vs intravenous patient‐controlled analgesia

Failure of analgesic technique requiring alternative approach (assessed at any time) · adults having abdominal surgery

Epidural analgesia probably leads to higher failure of analgesic technique requiring alternative approach… compared with intravenous patient‐controlled analgesia (moderate certainty).

1 finding from 1 review

Epidural analgesia vs intravenous patient‐controlled analgesia

Adverse events (assessed at any time during · adults having abdominal surgery

Epidural analgesia showed no clear difference in adverse events (assessed at any time during compared with intravenous patient‐controlled analgesia (low certainty).

1 finding from 1 review