Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

3,006 questions · 3,171 findings · 607 reviews · Headline outcomes only

No studies found 411 · 13%GRADE not reported 153 · 4.8%Very low 968 · 30.5%Low 897 · 28.3%Moderate 589 · 18.6%High 153 · 4.8%

Intervention not reported

Mortality within the longest · surgical patients with need for abdominal, caesarean section, orthopaedic or breast surgery

The intervention showed no clear difference in mortality within the longest (low certainty).

1 finding from 1 review

Intervention not reported

Mortality within the longest · surgical patients with need for abdominal, caesarean section, orthopaedic or breast surgery

It is very uncertain whether the intervention changes mortality within the longest (very low certainty).

1 finding from 1 review

Intervention not reported

Surgical site infection within 30 days in trials with low risk of bias (14 days to 30 days) · surgical patients with need for abdominal, caesarean section, orthopaedic or breast surgery

The intervention showed no clear difference in surgical site infection within 30 days in trials with low risk of… (low certainty).

1 finding from 1 review

Intervention not reported

Surgical site infection within 30 days, irrespective of risk of bias (14 days to 30 days) · surgical patients with need for abdominal, caesarean section, orthopaedic or breast surgery

The intervention showed no clear difference in surgical site infection within 30 days, irrespective of risk of bias… (low certainty).

1 finding from 1 review

Intervention not reported

Respiratory insufficiency · surgical patients with need for abdominal, caesarean section, orthopaedic or breast surgery

The intervention showed no clear difference in respiratory insufficiency (moderate certainty).

1 finding from 1 review

ICS + LAMA add‐on vs ICS dose increase

Mean exacerbations requiring a course of oral corticosteroids · adults with asthma

ICS + LAMA add‐on showed no clear difference in exacerbations requiring a course of OCSa 14 weeks compared with ICS dose increase (low certainty).

1 finding from 1 review