Lowe 1977.

Methods	Randomised controlled trial. The solutions were randomised by opening a sealed envelope containing a card denoting the appropriate fluid.
Participants	Participants were undergoing emergency laparotomy for acute abdominal trauma.
Interventions	1) Intervention group (n=57) received 50g albumin in 200ml in Ringers lactate; 2) Crystalloid group (n=84) received Ringer's lactate. Allocated fluid was used throughout the pre‐ and intra‐operative period.
Outcomes	Deaths reported.
Notes	Follow‐up to 5 days post‐operatively. Data on the 30 participants with chest injuries who were left out of the Lowe 1977 report, but included in Moss 1981, have been included in the meta‐analysis.
Risk of bias
Bias	Authors' judgement	Support for judgement
Allocation concealment (selection bias)	Low risk