8.

Placement of ABHR on cart compared with placement of ABHR on wall for promotion of hand hygiene
Patient or population: Anaesthesiologists and CRNAs Settings: Acute care surgical Intervention: Placement of ABHR on anaesthesia cart Comparison: Placement of ABHR on wall of anaesthesia room
Outcomes	Impact	No of Participants (studies)	Certainty of the evidence (GRADE)
Observed hand hygiene compliance	1 RCT reported an increase of 0.3 hand hygiene events an hour in the intervention group compared to the control group	1 RCT 1 hospital	⊕⊕⊕⊝ moderate1
Infection rates	Not reported	‐	‐
Colonisation rates	Not reported	‐	‐
GRADE Working Group grades of evidence High certainty: Further research is very unlikely to change our confidence in the estimate of effect. Moderate certainty: Further research is likely to have an important impact on our confidence in the estimate of effect and may change the estimate. Low certainty: Further research is very likely to have an important impact on our confidence in the estimate of effect and is likely to change the estimate. Very low certainty: We are very uncertain about the estimate. Abbreviations: ABHR: alcohol‐based hand rub; CRNA: certified registered nurse anaesthetist; RCT: randomised (controlled) trial

¹Evidence downgraded from high to moderate due to high risk for bias (two sources of high risk and two sources of unclear risk ).