Rose 1991.

Study characteristics
Methods	Truly randomised trial: random number table Time of randomisation: not stated Blinding: participant blind (sIngle‐blind) Power calculation: not done ITT: no Location: Milton S Hershey Medical Center, Pennsylvania, USA Timing and duration: not stated
Participants	All women of the first study scheduled for elective laparoscopic surgery offered option of participating Intervention used if any additional surgery performed during laparoscopy. If intervention not used, participant used as control Number of women: 24 No exclusion criteria stated
Interventions	Abdominal instillation of 2000 mL Ringer's lactate or 200 mL high molecular weight dextran, or no intervention, if surgery in addition to laparoscopy not performed
Outcomes	Weight (compared with morning before surgery and morning of surgery) Returning home from surgery Bedtime on day of surgery 4 times a day on 2 days after day of surgery Morning on days 3 to 6 after surgery
Notes	Adhesions not assessed in this paper
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Low risk	Quote: "The assignment was randomised using a random number table"
Allocation concealment (selection bias)	Unclear risk	Not enough information to allow judgement
Blinding of participants and personnel (performance bias) All outcomes	Unclear risk	Not enough information to allow judgement
Blinding of outcome assessment (detection bias) All outcomes	Low risk	Quote: "Patients were not informed of what substance had been added to their abdominal cavities"
Incomplete outcome data (attrition bias) All outcomes	Low risk	No issues identified
Selective reporting (reporting bias)	Unclear risk	Data presented in full for all outcomes specified, however, no study protocol or trial registry identified for comparison
Other bias	Low risk