Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

3,288 questions · 3,354 findings · 516 reviews · Headline outcomes only

No studies found 720 · 21.5%GRADE not reported 164 · 4.9%Very low 950 · 28.3%Low 932 · 27.8%Moderate 434 · 12.9%High 154 · 4.6%

Intervention not reported

Coryza ‐ RCT/CCT · children 9 months to 15 years old

The intervention showed no clear difference in coryza ‐ RCT/CCT (moderate certainty).

1 finding from 1 review

Intervention not reported

Coryza ‐ cohort studies · children 9 months to 15 years old

The intervention may leads to higher coryza ‐ cohort studies (low certainty).

1 finding from 1 review

Intervention not reported

URTI (rhinitis pharyngitis) ‐ RCT/CCT · children 9 months to 15 years old

The intervention showed no clear difference in URTI (rhinitis pharyngitis) ‐ RCT/CCT (low certainty).

1 finding from 1 review

Intervention not reported

URTI (rhinitis pharyngitis) ‐ cohort studies · children 9 months to 15 years old

It is very uncertain whether the intervention changes URTI (rhinitis pharyngitis) ‐ cohort studies (very low certainty).

1 finding from 1 review

Intervention not reported

Cohort studies household contacts ‐ 2 doses · children 9 months to 15 years old

The intervention may leads to lower cohort studies household contacts ‐ 2 doses (low certainty).

1 finding from 1 review

Intervention not reported

Cough ‐ RCT/CCT · children 9 months to 15 years old

The intervention showed no clear difference in cough ‐ RCT/CCT (low certainty).

1 finding from 1 review

Intervention not reported

Rash ‐ RCT/CCT · children 9 months to 15 years old

The intervention leads to higher rash ‐ RCT/CCT (high certainty).

1 finding from 1 review

Intervention not reported

Case‐control: MMR (risk interval from 0 to 90 days) · children 9 months to 15 years old

The intervention showed no clear difference in case‐control: MMR (risk interval from 0 to 90 days) (low certainty).

1 finding from 1 review

Intervention not reported

Self‐controlled case series/person‐time cohort · children 9 months to 15 years old

The intervention showed no clear difference in self‐controlled case series/person‐time cohort (low certainty).

1 finding from 1 review

Intervention not reported

Case‐control ‐ Jeryl Lynn ‐ risk interval 0 to 30 days · children 9 months to 15 years old

The intervention showed no clear difference in case‐control ‐ Jeryl Lynn ‐ risk interval 0 to 30 days (low certainty).

1 finding from 1 review

Intervention not reported

Case cross‐over ‐ Urabe or Hoshino · children 9 months to 15 years old

The intervention may leads to higher case cross‐over ‐ Urabe or Hoshino (low certainty).

1 finding from 1 review

Intervention not reported

Case cross‐over ‐ Jeryl Lynn or Rubini · children 9 months to 15 years old

The intervention showed no clear difference in case cross‐over ‐ Jeryl Lynn or Rubini (low certainty).

1 finding from 1 review

Intervention not reported

Self‐controlled case series ‐ any strain · children 9 months to 15 years old

The intervention may leads to higher self‐controlled case series ‐ any strain (low certainty).

1 finding from 1 review

Intervention not reported

Self‐controlled case series ‐ Urabe · children 9 months to 15 years old

The intervention may leads to higher self‐controlled case series ‐ Urabe (low certainty).

1 finding from 1 review

Intervention not reported

Self controlled case series ‐ Leningrad‐Zagreb · children 9 months to 15 years old

The intervention showed no clear difference in self controlled case series ‐ Leningrad‐Zagreb (low certainty).

1 finding from 1 review

Intervention not reported

Cohort studies household contacts ‐ 3 doses · children 9 months to 15 years old

The intervention may leads to lower cohort studies household contacts ‐ 3 doses (low certainty).

1 finding from 1 review

Intervention not reported

Person‐time cohort ‐ Jeryl Lynn · children 9 months to 15 years old

The intervention showed no clear difference in person‐time cohort ‐ Jeryl Lynn (low certainty).

1 finding from 1 review

Intervention not reported

Case‐only ecological method ‐ Urabe · children 9 months to 15 years old

The intervention may leads to higher case‐only ecological method ‐ Urabe (low certainty).

1 finding from 1 review

Intervention not reported

Case‐only ecological method ‐ Leningrad‐Zagreb · children 9 months to 15 years old

The intervention may leads to higher case‐only ecological method ‐ Leningrad‐Zagreb (low certainty).

1 finding from 1 review

Intervention not reported

Cohort studies ‐ within 1 week after MMR vaccination · children 9 months to 15 years old

The intervention probably leads to higher cohort studies ‐ within 1 week after MMR vaccination (moderate certainty).

1 finding from 1 review