Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

891 questions · 902 findings · 317 reviews

No studies found 210 · 23.3%GRADE not reported 56 · 6.2%Very low 236 · 26.2%Low 220 · 24.4%Moderate 146 · 16.2%High 34 · 3.8%

Summary of findings table ‐ Concizumab prophylaxis vs on‐demand therapy

Adverse events ‐ Serious adverse events · people with inhibitors

Summary of findings table ‐ Concizumab prophylaxis showed no clear difference in adverse events ‐ Serious adverse events compared with on‐demand therapy (low certainty).

1 finding from 1 review

Summary of findings table ‐ Fitusiran prophylaxis vs on‐demand therapy

Adverse events ‐ Serious adverse events · people without inhibitors

Summary of findings table ‐ Fitusiran prophylaxis showed no clear difference in adverse events ‐ Serious adverse events compared with on‐demand therapy (moderate certainty).

1 finding from 1 review

Any antibiotic regimen plus N‐acetylcysteine vs the same regimen without N‐acetylcysteine (with or without placebo)

Allergic adverse events · patients with Helicobacter pylori infection

It is very uncertain whether any antibiotic regimen plus N‐acetylcysteine changes allergic adverse events compared with the same regimen without N‐acetylcysteine (with or without placebo) (very low certainty).

1 finding from 1 review