Findings

What do systematic reviews say?

2 questions · 2 findings · 2 reviews · Pregnancy and Childbirth

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No studies found 0 · 0%GRADE not reported 0 · 0%Very low 0 · 0%Low 1 · 50%Moderate 1 · 50%High 0 · 0%

Respiratory syncytial virus vaccine vs placebo

Stillbirth · pregnant women

Respiratory syncytial virus vaccine showed no clear difference in stillbirth compared with placebo (low certainty).

1 finding from 1 review

Respiratory syncytial virus vaccination during pregnancy for improving infant outcomes 2024 · Cochrane Headline outcomes only
RR 0.81 [0.38, 1.72]
5 studies · 12652 participants
Low

Viral influenza vaccine vs control

Perinatal death (stillbirth + death in first week of life) · Pregnant women aged 18 to 38 years and an estimated gestation of 20 to 36 weeks.

Viral influenza vaccine showed no clear difference in perinatal death (stillbirth + death in first week of life) compared with control (moderate certainty).

1 finding from 1 review

Impact of Haemophilus influenzae type B (Hib) and viral influenza vaccinations in pregnancy for improving maternal,… 2015 · Cochrane Headline outcomes only
RR 1.32 [0.73, 2.38]
1 study · 2083 participants
Moderate