Woods 1993.

Methods	Randomised controlled trial. Patients with even hospital numbers were randomised to the group receiving albumin while those patients with odd hospital numbers were randomised to the group not receiving supplemental albumin.
Participants	Patients undergoing surgery for abdominal aortic aneurysm, aortoiliac or aortofemoral bypass.
Interventions	1) Intervention group (n=37): albumin was replaced to a level greater than or equal to 3.5 g/dL. 2) Control group (n=32): received no supplemental albumin.
Outcomes	Deaths reported.
Notes	Follow‐up to discharge.
Risk of bias
Bias	Authors' judgement	Support for judgement
Allocation concealment (selection bias)	High risk