McCrery 2005.

Methods	RCT. By coin toss. Two arms. Patients blinded. No mention on blinding of care giver. Independent assessor. Follow‐up mean of 28.8 months in Burch and 24.2 months in MMK
Participants	N = 138 Lost to follow‐up: 6 in Burch, 11 in MMK Symptom‐based diagnosis (not all had UDS). Only primary incontinence. With mixed incontinence Incl: with anterior wall prolapse and SUI, urethral mobility of > 30 degrees from horizontal or USI, at least 6 months follow‐up. Excl: prior incontinence surgery; with diabetes, neuro disorders, spinal injuries; known CLPP < 60 cm H20 or MUCP < 20 cm H20. Similar in age, number of vaginal deliveries, weight and urodynamic parameters at baseline Women's hospital university‐affiliated, single centre
Interventions	I: Burch (66) II: MMK (72) Both treatment groups underwent paravaginal defect repair. Both techniques described Single surgeon with with variable resident/fellow participation
Outcomes	Number cured subjectively, success rate, postop voiding problems, time to resumption of spontaneous voiding Subjective cure defined as no SUI and bladder problems assessed to be better Success is the combined number of cured and improved
Notes
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Low risk	"randomized by a coin toss"
Allocation concealment (selection bias)	Unclear risk	not mentioned
Blinding (performance bias and detection bias) All outcomes	Unclear risk	not mentioned
Blinding of participants and personnel (performance bias) All outcomes	Unclear risk	not mentioned
Blinding of outcome assessment (detection bias) All outcomes	Unclear risk	not mentioned
Incomplete outcome data (attrition bias) All outcomes	Low risk	"losing 11 patients from MMK and 6 from Burch", but analysis was by intention to treat
Other bias	Unclear risk	mean length of follow‐up was significantly longer in the MMK group (28.8 mos versus 24.2) and reported results were "after controlling for the difference in months of follow up"