Domain	Risk of bias			Support for judgement	Location in text (pg & ¶/fig/table)
	Low risk	High risk	Unclear
Random sequence generation (selection bias)
Allocation concealment (selection bias)
Blinding of participants and personnel (performance bias)				Outcome group: First time insertion success
				Cost
				Complications/adverse events from VAD
				Device failure
Blinding of outcome assessment (detection bias)				Outcome group: First‐time insertion success
				Cost
				Complications/adverse events from VAD
				Device failure
Incomplete outcome data (attrition bias)				First‐time insertion success
				Cost
				Complications/adverse events from VAD
				Device failure
Selective outcome reporting? (reporting bias)
Other bias
Notes: