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Evidence found and GRADE certainty

6 questions · 6 findings · 3 reviews · Haematology

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No studies found 1 · 16.7%GRADE not reported 0 · 0%Very low 3 · 50%Low 1 · 16.7%Moderate 1 · 16.7%High 0 · 0%

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 ‐ 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

Glutamine vs placebo

All‐cause mortality at 100 days post‐transplant · People undergoing stem cell transplant with haematological malignancies

It is very uncertain whether summary of findings: Glutamine changes all‐cause mortality at 100 days post‐transplant ( compared with placebo (very low certainty).

1 finding from 1 review

Ursodeoxycholic acid vs placebo or no treatment

All‐cause mortality at 100 days post‐transplant · Patients undergoing stem cell transplant with malignant and non‐malignant diseases

Summary of findings: Ursodeoxycholic acid may leads to lower all‐cause mortality at 100 days post‐transplant ( compared with placebo or no treatment (low certainty).

1 finding from 1 review

Prophylactic plasma transfusion before surgery/invasive procedures vs no prophylactic plasma transfusion before surgery/invasive procedures (colloid, crystalloid, placebo, or no treatment)

All‐cause mortality up to 30 days № of participants: 72 (1 RCT) · patients undergoing non‐cardiac surgery/invasive procedures

It is very uncertain whether prophylactic plasma transfusion before surgery/invasive procedures changes all‐cause mortality up to 30 days № of participants: 72 (1 RCT) compared with no prophylactic plasma transfusion before surgery/invasive… (very low certainty).

1 finding from 1 review