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What do systematic reviews say?

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Evidence found and GRADE certainty

9 questions · 9 findings · 8 reviews · Headline outcomes only

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No studies found 1 · 11.1%GRADE not reported 1 · 11.1%Very low 3 · 33.3%Low 2 · 22.2%Moderate 2 · 22.2%High 0 · 0%

Higher vs lower FiO2 or targets of arterial oxygenation

Proportion of participants with 1 or more serious adverse events according to International Conference on Harmonisation Good Clinical Practice (ICH‐GCP) · adults admitted to the ICU

It is very uncertain whether higher changes proportion of participants with ≥ 1 serious adverse events according… compared with lower FiO2 or targets of arterial oxygenation (very low certainty).

1 finding from 1 review

Higher BP target (< 150‐160/95‐105 mmHg) vs lower BP target (< 140/90 mmHg)

Serious adverse events: cardiovascular events · older adults with primary hypertension

Higher BP target (< 150‐160/95‐105 mmHg) showed no clear difference in cardiovascular serious adverse events compared with lower BP target (< 140/90 mmHg) (low certainty).

1 finding from 1 review

Low dose naldemedine vs higher dose

Serious adverse eventsg · people with cancer irrespective of whether receiving palliative care and with opioid‐induced bowel dysfunction

Low dose naldemedine showed no clear difference in serious adverse eventsg compared with higher doses (low certainty).

1 finding from 1 review

SiT for maintenance/relief vs higher‐dose ICS/LABA + SABA

Patients with serious adverse events · Studies recruited adults and adolescents aged 12 and older with chronic asthma

SiT for maintenance/relief showed no clear difference in patients with serious adverse events compared with higher‐dose ICS/LABA + SABA (moderate certainty).

1 finding from 1 review