Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

4,751 questions · 12,775 findings · 807 reviews · Headline outcomes only

No studies found 3,413 · 26.7%GRADE not reported 709 · 5.5%Very low 3,483 · 27.3%Low 3,165 · 24.8%Moderate 1,628 · 12.7%High 377 · 3%

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IVIg vs placebo

Death · adults with renal vasculitis

Intravenous immunoglobulin showed no clear difference in death compared with placebo (low certainty).

1 finding from 1 review

Intervention not reported

Dialysis at one year · adults with renal vasculitis

The intervention may leads to lower dialysis at one year (low certainty).

1 finding from 1 review

IVIg vs placebo

Response at 3 months · adults with renal vasculitis

Intravenous immunoglobulin may leads to higher response at 3 months compared with placebo (low certainty).

1 finding from 1 review

IVIg vs placebo

Relapse at 3 months · adults with renal vasculitis

Intravenous immunoglobulin showed no clear difference in relapse at 3 months compared with placebo (low certainty).

1 finding from 1 review

IVIg vs placebo

Adverse events · adults with renal vasculitis

Intravenous immunoglobulin may leads to higher adverse events compared with placebo (low certainty).

1 finding from 1 review

Azathioprine vs cyclophosphamide

Relapse · adults with renal vasculitis for maintenance therapy

Azathioprine showed no clear difference in relapse at 18 months compared with cyclophosphamide (moderate certainty).

2 findings from 1 review

Intervention not reported

Sustained remission · adults with renal vasculitis

The intervention may leads to higher sustained remission (low certainty).

1 finding from 1 review

Azathioprine vs cyclophosphamide

Serious adverse events · adults with renal vasculitis for maintenance therapy

Azathioprine showed no clear difference in serious adverse events compared with cyclophosphamide (moderate certainty).

1 finding from 1 review