Stangel‐Wojcikiewicz 2008.

Methods	Design: RCT
Participants	108 women Age 34‐78 years Inclusion criteria: urodynamically diagnosed GSI (USI) Exclusion criteria: OAB, DO, ISD (Valsalva leak point pressure < 65 cm water, MUCP < 20 cm water); prolapse grade 3 or 4, diabetes, neurological disorders, any contraindication to laparoscopic or open surgery
Interventions	Group I (n = 51): LC Group II (n = 57): OC
Outcomes	Stress test after surgery Operating time (mean min) Postoperative length of stay (mean h) Blood loss (mean mL) Urine retention Bladder perforation
Notes	Other adverse effects in Group II: wound infection, retropubic haematoma, dyspareunia, thrombophlebitis Follow‐up: 18 months This trial is a conference abstract with little detail reported. Trial author emailed for more data
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	Randomised
Allocation concealment (selection bias)	Unclear risk	Randomised
Blinding of participants and personnel (performance bias) All outcomes	Unclear risk	Not possible
Blinding of outcome assessment (detection bias) All outcomes	Unclear risk	No information
Incomplete outcome data (attrition bias) All outcomes	Low risk	No dropouts
Selective reporting (reporting bias)	Unclear risk	No information
Other bias	Unclear risk	This trial is a conference abstract with little detail reported