Thabet 2010.

Methods	Single centre; unclear if blinding used Setting: teaching hospital in Egypt Time frame: February 2000 to October 2002
Participants	100 women; recruited from outpatient clinic at Kasr El‐Aini School of Medicine, Cairo University, Egypt Inclusion criteria: Premenopausal uterine bleeding (no other inclusion criteria or descriptive characteristics reported) Exclusion criteria: Patients suspected or confirmed having malignancy Endometriosis Coagulation defects
Interventions	Dilatation and ablative curettage using the Thabet curette (n = 50) Overcurettage ‐ using a Sim's curette but continuing beyond the gritty sensation felt with routine D & C until disappearance of the sensation (n = 50) Duration of follow‐up: not clear, although study authors reported follow‐up time of 3 years
Outcomes	Intraoperative complications Amenorrhoea Normal menstruation Sexual function
Notes	No power calculation reported; intention‐to‐treat analysis not reported Source of funding: not reported Conflicts of interest: not reported. Follow‐up in the trial unclear; potential bias from replacing dropouts with new cases
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	"true random bases"
Allocation concealment (selection bias)	Unclear risk	Not reported
Blinding of participants and personnel (performance bias) All outcomes	High risk	Unlikely
Blinding of outcome assessment (detection bias) All outcomes	High risk	Unlikely
Incomplete outcome data (attrition bias) All outcomes	High risk	Replacement of dropouts with new cases likely to cause bias in the results
Selective reporting (reporting bias)	Low risk	No evidence of selective reporting
Other bias	Unclear risk	Baseline comparability not reported