Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

17 questions · 18 findings · 4 reviews · Headline outcomes only

No studies found 5 · 27.8%GRADE not reported 0 · 0%Very low 4 · 22.2%Low 5 · 27.8%Moderate 3 · 16.7%High 1 · 5.6%

Inspection vs no intervention

Fatal and non‐fatal injuries in CBA, long‐term · firms potentially subject to inspection

Inspection showed no clear difference in fatal and non‐fatal injuries in CBA, medium‐term compared with no intervention (low certainty).

2 findings from 1 review

Live attenuated influenza vaccine vs placebo or no intervention

Otitis media · healthy, community‐dwelling children younger than 16 years of age

Live attenuated influenza vaccine showed no clear difference in otitis media assessed by clinical confirmation (inspection of ear… compared with placebo or do nothing (moderate certainty).

1 finding from 1 review

Intervention not reported

Surgical site infection (all wound classifications) Inspection of the wound1 ( · Patients undergoing surgery

The intervention leads to higher surgical site infection (all wound classifications) Inspection of… (high certainty).

1 finding from 1 review

Intervention not reported

Surgical site infection Inspection of the wound1 ( · Patients undergoing surgery

The intervention showed no clear difference in surgical site infection Inspection of the wound1 ( (moderate certainty).

1 finding from 1 review