Richter 2010.

Methods	RCT: multi‐centre randomised equivalence trial conducted in the USA
Participants	597 women Inclusion criteria: age >21 years; predominant SUI for >3 months (urgency UI allowed); positive urinary stress test; bladder volume >300 ml Exclusion criteria: not defined Baseline characteristics similar between groups Mean age (years; SD): Group A: 52.7 (10.5); Group B: 53.1 (11.5) Previous incontinence surgery: Group A: 38/297; Group B: 41/298 Previous prolapse surgery: Group A: 13/297; Group B: 10/298 Postmenopausal: Group A: 209/297; Group B: 206/298 BMI kg/m²: Group A: 30.6; Group B: 30 HRT: Group A: 81/297; Group B: 90/298 Concomitant pelvic surgery: Group A: 73/298; Group B: 78/299
Interventions	Group A: retropubic sling (TVT; n = 298) Group B: transobturator tapes (TVT‐O, and TOT Monarc; n = 299) (Group C (?): TVT‐O (inside‐out) ‐ separate data not provided) (Group D (?): TOT (Monarch, outside‐in) ‐ separate data not provided)
Outcomes	Composite primary outcomes: objective cure: negative stress test, dry pad test, no repeat treatment; subjective cure: no SUI symptoms on questionnaire, no leakage in urinary diary Secondary outcomes: median blood loss median operative time bladder or urethral perforation vaginal perforation voiding dysfunction mesh erosion/exposure vascular injury suprapubic/groin pain de novo urgency incontinence QOL: UDI questionnaire, IIQ questionnaire, Sexual function: assessed via PISQ‐12
Notes	TOMUS trial NCT00325039 Per protocol Lost to follow‐up: Group A: 18/298; Group B: 14/299 PISQ measures dyspareunia, coital incontinence and fear of coital incontinence
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Low risk	Permuted block randomisation schedule with stratification by centre
Allocation concealment (selection bias)	Unclear risk	No information
Blinding of participants and personnel (performance bias) All outcomes	Unclear risk	No information
Blinding of outcome assessment (detection bias) All outcomes	Unclear risk	No information
Incomplete outcome data (attrition bias) All outcomes	Unclear risk	Quote: "patients who were lost to follow‐up were considered to have had treatment failure and when patients who were lost to follow‐up were excluded”