Al‐Hwiesh 2016.

Methods	Study design: parallel RCT Study time frame/recruitment period: December 2012 to June 2014 Follow‐up period: 18 months
Participants	Country: Saudi Arabia Setting: single centre Incident PD patient followed up in the study unit Number: treatment group (36); control group (37) Median age, IQR (years): treatment group (54, 42 to 63); control group (50, 45 to 61) Sex (M/F): treatment group (11/25); control group (11/26) Diabetes: treatment group (21/36); control group (23/37) Exclusion criteria: previous abdominal or pelvic surgery; history of peritonitis; pregnancy
Interventions	Treatment group Triple cuff Control group Double cuff Other information Antibiotic prophylaxis with first generation cephalosporin was given IV prior to the procedure. APD was instituted 14 days after PD catheter insertion
Outcomes	Exit‐site, wound and tunnel infection Peritonitis Mechanical complications: bowel perforation, haemorrhage, poor drainage, omental wrapping, catheter migration, early leak, catheter replacement Technique survival
Notes	Additional data requested from authors: yes Funding source: not reported
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	Randomised using adaptive randomisation method
Allocation concealment (selection bias)	Unclear risk	Insufficient information to permit judgement
Blinding of participants and personnel (performance bias) All outcomes	Unclear risk	Insufficient information to permit judgement
Blinding of outcome assessment (detection bias) All outcomes	Unclear risk	Insufficient information to permit judgement
Incomplete outcome data (attrition bias) All outcomes	Low risk	No dropouts
Selective reporting (reporting bias)	Low risk	Most outcomes were reported
Other bias	Unclear risk	Insufficient information to permit judgement