Efficacy and safety of a first dose of whole‐cell pertussis vaccine vs a first dose of acellular pertussis vaccine: All‐cause serious adverse events
Efficacy and safety of a first dose of whole‐cell pertussis vaccine showed no clear difference in all‐cause serious adverse events compared with a first dose of acellular pertussis vaccine (moderate certainty).
What each review found
Current versions only| Finding | Effect | Studies | GRADE certainty |
|---|---|---|---|
Efficacy and safety of a first dose of whole‐cell pertussis vaccine vs a first dose of acellular pertussis vaccine All‐cause serious adverse events · infants younger than six months of age Efficacy and safety of a first dose of whole‐cell pertussis vaccine showed no clear difference in all‐cause serious adverse events compared with a first dose of acellular pertussis vaccine (moderate certainty). Whole‐cell pertussis vaccine in early infancy for the prevention of allergy in children (2021) · Cochrane Headline outcomes only | RR 0.94 [0.78, 1.15] | 15 studies · 38072 participants | Moderate |
Findings are shown side by side, never pooled across reviews.
The reviews
| Review | Searched up to | Included studies | AMSTAR 2 |
|---|---|---|---|
| Whole‐cell pertussis vaccine in early infancy for the prevention of allergy in children 2021 · Cochrane Headline outcomes only | Not reported | list not extracted yet | Not assessed |
Studies behind the findings
None of these reviews ties its included studies to this outcome in the data here. Cochrane reviews and reviews with headline outcomes only do not list their studies yet.
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.