Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

461 questions · 487 findings · 44 reviews · Headline outcomes only

No studies found 117 · 24%GRADE not reported 31 · 6.4%Very low 131 · 26.9%Low 133 · 27.3%Moderate 61 · 12.5%High 14 · 2.9%

Heparin vs low molecular weight heparin

Incidence of hepatic veno‐occlusive disease ( · Patients undergoing stem cell transplant with malignant and non‐malignant diseases

It is very uncertain whether summary of findings: Heparin changes incidence of hepatic veno‐occlusive disease ( compared with low molecular weight heparin (very low certainty).

1 finding from 1 review

Heparin vs low molecular weight heparin

Mortality attributable to hepatic veno‐occlusive disease ( · Patients undergoing stem cell transplant with malignant and non‐malignant diseases

It is very uncertain whether summary of findings: Heparin changes mortality attributable to hepatic veno‐occlusive disease ( compared with low molecular weight heparin (very low certainty).

1 finding from 1 review

Heparin vs low molecular weight heparin

Frequency of adverse events ( · Patients undergoing stem cell transplant with malignant and non‐malignant diseases

It is very uncertain whether summary of findings: Heparin changes frequency of adverse events ( compared with low molecular weight heparin (very low certainty).

1 finding from 1 review

Heparin plus aspirin vs aspirin

Adverse events in the mother ‐ Bleeding · women with persistent antiphospholipid antibodies and recurrent pregnancy loss

Heparin plus aspirin showed no clear difference in adverse events in the mother ‐ Bleeding compared with aspirin (low certainty).

1 finding from 1 review

Heparin plus aspirin vs aspirin

Preterm delivery of a live infant · women with persistent antiphospholipid antibodies and recurrent pregnancy loss

It is very uncertain whether heparin plus aspirin changes preterm delivery of a live infant compared with aspirin (very low certainty).

1 finding from 1 review

Heparin plus aspirin vs aspirin

Intrauterine growth restriction · women with persistent antiphospholipid antibodies and recurrent pregnancy loss

It is very uncertain whether heparin plus aspirin changes intrauterine growth restriction compared with aspirin (very low certainty).

1 finding from 1 review