Bianchi 1999.

Methods	No. of centres: 1 Location: University of Milan, Italy Recruitment period: July 1994 to October 1996
Participants	Inclusion criteria: < 40 yrs Exclusion criteria: medical or surgical treatment for endometriosis, concurrent disease that might affect fertility or cause pelvic pain, women without pain symptoms, women not seeking pregnancy, liver or endocrine disease No. randomised: 77 No. analysed: 77
Interventions	Post‐surgical medical therapy 1. Danazol oral 600 mg daily x 3/12 (n = 36) 2. No treatment (n = 41)
Outcomes	Pain recurrence AFS scores Pregnancy rates Adverse events of medication
Notes	Power calculation: NS Funding: NS
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Low risk	"Randomization was done according to a computer generated list"
Allocation concealment (selection bias)	Unclear risk	not mentioned
Blinding (performance bias and detection bias) All outcomes	High risk	not mentioned, no placebo
Incomplete outcome data (attrition bias) All outcomes	Low risk	all randomised patients included in analysis
Selective reporting (reporting bias)	Low risk	important outcomes ‐ pregnancy rate and recurrence of endometriosis pain, adverse effects reported
Other bias	Low risk	groups appear comparable at baseline