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Evidence found and GRADE certainty

95 questions · 95 findings · 34 reviews

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No studies found 22 · 23.2%GRADE not reported 4 · 4.2%Very low 38 · 40%Low 18 · 18.9%Moderate 12 · 12.6%High 1 · 1.1%

Summary of findings table ‐ Corticosteroids plus standard care vs placebo or usual care

All‐cause mortality up to 30 days · hospitalised and unvaccinated individuals with a confirmed or suspected diagnosis of symptomatic COVID‐19

Summary of findings table ‐ Corticosteroids plus standard care probably leads to lower all‐cause mortality up to 30 days compared with standard care (plus/minus placebo) (moderate certainty).

1 finding from 1 review

Summary of findings table ‐ Convalescent plasma vs placebo or usual care

All‐cause mortality at up to day 28 ‐ total · individuals with moderate to severe disease

Summary of findings table ‐ Convalescent plasma showed no clear difference in all‐cause mortality at up to day 28 ‐ total compared with placebo or standard care alone (high certainty).

1 finding from 1 review

Summary of findings table ‐ routine monitoring vs no routine monitoring of gastric residual

Mortality before hospital discharge · preterm infants

Summary of findings table ‐ routine monitoring showed no clear difference in all‐cause mortality before hospital discharge compared with no routine monitoring of gastric residual (low certainty).

1 finding from 1 review

Summary of findings table ‐ Corticosteroids plus standard care vs placebo or usual care

All‐cause mortality up to 120 days · hospitalised and unvaccinated individuals with a confirmed or suspected diagnosis of symptomatic COVID‐19

It is very uncertain whether summary of findings table ‐ Corticosteroids plus standard care changes all‐cause mortality up to 120 days compared with standard care (plus/minus placebo) (very low certainty).

1 finding from 1 review

Summary of Findings Table ‐ Electrocoagulation in combination with allopurinol or with dimethyl sulphoxide vs control (vehicle solution of allopurinol by mouth)

All‐cause mortality at last · people with liver metastases

Summary of Findings Table ‐ Electrocoagulation in combination with… may leads to lower all‐cause mortality at last compared with control (vehicle solution of allopurinol by mouth) (low certainty).

1 finding from 1 review

Summary of findings table ‐ High‐dose dexamethasone (12 mg or higher) vs low‐dose dexamethasone (6 mg to 8 mg)

All‐cause mortality up to 30 days · hospitalised individuals with unknown vaccination status and a confirmed diagnosis of symptomatic COVID‐19

Summary of findings table ‐ High‐dose dexamethasone (12 mg or higher) showed no clear difference in all‐cause mortality up to 30 days compared with low‐dose dexamethasone (6 mg to 8 mg) (low certainty).

1 finding from 1 review

Summary of findings table ‐ High‐dose dexamethasone (12 mg or higher) vs low‐dose dexamethasone (6 mg to 8 mg)

All‐cause mortality up to 120 days · hospitalised individuals with unknown vaccination status and a confirmed diagnosis of symptomatic COVID‐19

It is very uncertain whether summary of findings table ‐ High‐dose dexamethasone (12 mg or higher) changes all‐cause mortality up to 120 days compared with low‐dose dexamethasone (6 mg to 8 mg) (very low certainty).

1 finding from 1 review

Summary of findings table ‐ Extracorporeal membrane oxygenation (ECMO) vs usual care

All‐cause mortality at 6 months (subgroup) · severe cardiorespiratory failure and cardiac arrest

Summary of findings table ‐ Extracorporeal membrane oxygenation (ECMO) showed no clear difference in all‐cause mortality: ECPR subgroup compared with conventional care (moderate certainty).

1 finding from 1 review

Antibiotics vs other antibiotics

All‐cause mortality (a cephalosporin (cefotaxime) versus doxycycline) · people with leptospirosis

It is very uncertain whether summary of findings table ‐ Antibiotics changes all‐cause mortality (a cephalosporin (cefotaxime) versus doxycycline) compared with other antibiotics (very low certainty).

1 finding from 1 review

Summary of findings table ‐ Extracorporeal membrane oxygenation (ECMO) vs usual care

All‐cause mortality: all ECMO studies · severe cardiorespiratory failure and cardiac arrest

Summary of findings table ‐ Extracorporeal membrane oxygenation (ECMO) probably leads to lower all‐cause mortality: all ECMO studies compared with conventional care (moderate certainty).

1 finding from 1 review

Summary of findings table ‐ Extracorporeal membrane oxygenation (ECMO) vs usual care

All‐cause mortality: VV ECMO subgroup · severe cardiorespiratory failure and cardiac arrest

Summary of findings table ‐ Extracorporeal membrane oxygenation (ECMO) probably leads to lower all‐cause mortality: VV ECMO subgroup compared with conventional care (moderate certainty).

1 finding from 1 review

Summary of findings table ‐ Extracorporeal membrane oxygenation (ECMO) vs usual care

All‐cause mortality: VA ECMO subgroup · severe cardiorespiratory failure and cardiac arrest

Summary of findings table ‐ Extracorporeal membrane oxygenation (ECMO) showed no clear difference in all‐cause mortality: VA ECMO subgroup compared with conventional care (low certainty).

1 finding from 1 review

Antibiotics vs other antibiotics

All‐cause mortality (penicillin versus a cephalosporin (cefotaxime or ceftriaxone)) · people with leptospirosis

It is very uncertain whether summary of findings table ‐ Antibiotics changes all‐cause mortality (penicillin versus a cephalosporin (cefotaxime… compared with other antibiotics (very low certainty).

1 finding from 1 review

Summary of Findings Table ‐ Antithrombin concentrates vs no antithrombin concentrates

Death Analysis 1.1 · adults with acute lymphoblastic leukaemia treated with asparaginase‐based chemotherapy

It is very uncertain whether summary of Findings Table ‐ Antithrombin concentrates changes all‐cause mortality ‐ Intention‐to‐treat analysis compared with no antithrombin concentrates (very low certainty).

1 finding from 1 review