Findings

What do systematic reviews say?

4 questions · 4 findings · 1 reviews · Acute Respiratory Infections

No studies found 0 · 0%GRADE not reported 0 · 0%Very low 0 · 0%Low 4 · 100%Moderate 0 · 0%High 0 · 0%

Self‐controlled case series/person‐time ‐ > 2 weeks after MMR vaccination · children 9 months to 15 years old

The intervention showed no clear difference in self‐controlled case series/person‐time ‐ > 2 weeks after MMR… (low certainty).

1 finding from 1 review

Vaccines for measles, mumps, rubella, and varicella in children 2021 · Cochrane Headline outcomes only
Rate ratio 1.18 [0.93, 1.5]
3 studies · 102099 participants
Low

Self‐controlled case series/person‐time ‐ between 1 and 2 weeks after MMR vaccination · children 9 months to 15 years old

The intervention may leads to higher self‐controlled case series/person‐time ‐ between 1 and 2 weeks… (low certainty).

1 finding from 1 review

Vaccines for measles, mumps, rubella, and varicella in children 2021 · Cochrane Headline outcomes only
Rate ratio 3.36 [2.65, 4.24]
5 studies · 505493 participants
Low

Self‐controlled case series/person‐time ‐ between 1 and 2 weeks after vaccination; MMRV · children 9 months to 15 years old

The intervention may leads to higher self‐controlled case series/person‐time ‐ between 1 and 2 weeks… (low certainty).

1 finding from 1 review

Vaccines for measles, mumps, rubella, and varicella in children 2021 · Cochrane Headline outcomes only
Rate ratio 6.08 [4.95, 7.47]
2 studies · 180480 participants
Low

Self‐controlled case series/person‐time ‐ between 1 and 2 weeks after MMR+V vaccination · children 9 months to 15 years old

The intervention may leads to higher self‐controlled case series/person‐time ‐ between 1 and 2 weeks… (low certainty).

1 finding from 1 review

Vaccines for measles, mumps, rubella, and varicella in children 2021 · Cochrane Headline outcomes only
Rate ratio 3.13 [2.38, 4.1]
1 study · 181088 participants
Low