Findings

What do systematic reviews say?

1 questions · 1 findings · 1 reviews

No studies found 0 · 0%GRADE not reported 0 · 0%Very low 0 · 0%Low 0 · 0%Moderate 0 · 0%High 1 · 100%

All‐cause mortalityb

AD26.COV2.S – Janssen Pharmaceutical Companies leads to lower all‐cause mortalityb compared with placebo (high certainty).

1 finding from 1 review

Efficacy and safety of COVID‐19 vaccines 2022 · Cochrane Headline outcomes only
RR 0.25 [0.09, 0.67]
1 study · 43783 participants
High