Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

3,696 questions · 3,815 findings · 855 reviews

No studies found 573 · 15%GRADE not reported 374 · 9.8%Very low 993 · 26%Low 1,062 · 27.8%Moderate 614 · 16.1%High 199 · 5.2%

Clopidogrel vs placebo

Number of related surgical or radiological interventions · people with ESRD receiving haemodialysis through an arteriovenous fistula

Clopidogrel showed no clear difference in number of related surgical or radiological interventions (42 days) compared with placebo (moderate certainty).

1 finding from 1 review

Intervention not reported

Self‐controlled case series ‐ encephalitis meningitis ‐ encephalitis meningitis risk period (0 to 90 days) · children 9 months to 15 years old

The intervention showed no clear difference in self‐controlled case series ‐ encephalitis meningitis ‐ encephalitis… (low certainty).

1 finding from 1 review