Demirci 2001

Methods	RCT. Follow‐up 12 months. No details of allocation method given. Not all women available in follow‐up
Participants	46 women recruited, 23 in each arm of the study. 34 women available for follow‐up, reasons for loss to follow‐up not reported. Inclusion and exclusion criteria were well defined
Interventions	A (23): rectus fascia sling B (23): Burch colposuspension
Outcomes	Cure defined as dry, symptom‐free (subjective based on history and objective on ultrasonography) Failure rate: A:0/17, B: 1/17 Late complications (1‐year follow‐up): A: 1 instability; 3 suprapubic pain and 1 dyspareunia; B: 1 instability, 2 dyspareunia and 2 genital prolapse (enterocele)
Notes	Ultrasonography for measurement of bladder neck mobility was tested in both groups pre and post operatory and showed significant improvement but no significant differences between the groups
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	Not mentioned
Allocation concealment (selection bias)	Unclear risk	Not mentioned
Blinding (performance bias and detection bias) All outcomes	Unclear risk	Not mentioned
Incomplete outcome data (attrition bias) All outcomes	High risk	12 women missing lost to follow‐up, reason not reported. No mention of whether loss had impact on final analysis