Wang 2006.

Methods	RCT of TOT (Monarc) and SPARC suburethral sling procedures
Participants	60 women with an average age of 50 years (SD 10.71 ) Inclusion criteria: women with USI Exclusion criteria: women suffering from preoperative voiding dysfunction, which was defined as either: free Q max of ≤ 12ml/s in repeated free uroflow studies combined with Pdet Q max of ≥20cm H2O, PVR urine ≥ 100 ml, and participants with a pad increase of at least 10cm H2O, compared to the baseline abdominal pressure in a pressure‐flow study. Women who had previous anti‐incontinence surgery and/or with pelvic prolapse > stage 2 of the ICS grading system were also excluded.
Interventions	Group A: Monarc (n = 31) Group B: SPARC (n = 29)
Outcomes	Assessed via 1‐hr pad test, multichannel urodynamic assessment, complications and postoperative voiding function. Transabdominal USS to detect subcutaneous, retropubic or obturator haematoma
Notes	The women were blinded to the procedure performed Intraoperative cystoscopy was performed in both groups
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Low risk	Quote: "By using a predetermined computer‐generated randomisation code ... were assigned randomly by the senior author ..."
Allocation concealment (selection bias)	Unclear risk	No information
Blinding of participants and personnel (performance bias) All outcomes	Unclear risk	Quote: " ... The patients were blinded to the procedure ..." How this was achieved was not explained
Blinding of outcome assessment (detection bias) All outcomes	Low risk	Quote: "an independent continence advisor and one of the authors both of whom were blinded to the procedures performed carried out the follow‐up examinations and post operative outcome assessments"
Incomplete outcome data (attrition bias) All outcomes	Low risk	No differential loss to follow‐up or differential attrition