Question · asked by 1 review
Viral influenza vaccine vs control: Maternal death
- Population
- Pregnant women aged 18 to 38 years and an estimated gestation of 20 to 36 weeks.
- Intervention
- Viral influenza vaccine
- Comparison
- control
- Outcome
- Maternal death
Viral influenza vaccine showed no clear difference in maternal death compared with control (moderate certainty).
What each review found
Current versions only| Finding | Effect | Studies | GRADE certainty |
|---|---|---|---|
Viral influenza vaccine vs control Maternal death · Pregnant women aged 18 to 38 years and an estimated gestation of 20 to 36 weeks. Viral influenza vaccine showed no clear difference in maternal death compared with control (moderate certainty). Impact of Haemophilus influenzae type B (Hib) and viral influenza vaccinations in pregnancy for improving… (2015) · Cochrane Headline outcomes only | RR 4.96 [0.24, 103.24] | 1 study · 2116 participants | Moderate |
Findings are shown side by side, never pooled across reviews.
The reviews
| Review | Searched up to | Included studies | AMSTAR 2 |
|---|---|---|---|
| Impact of Haemophilus influenzae type B (Hib) and viral influenza vaccinations in pregnancy for improving maternal, neonatal and infant… 2015 · Cochrane Headline outcomes only | Not reported | Not extracted | Not assessed |
How reviews are matched to this question
Reviews word the same question differently. Four decision models (TypeSafe's Jev, Liquid AI's d1-ultra, SubQ Snap and Baseten's Elephant) judged each wording of the population, intervention, comparator and outcome against the others; two wordings count as the same when at least three of them agree and none clearly disagrees, and findings count as this question only when all four elements match. Timing, setting and subgroup never split a question: they are shown on each finding.