Aswad 1998.

Methods	Study design: parallel RCT Time frame: not reported Follow‐up period: not reported Primary endpoint: not reported
Participants	Country: USA Setting: single centre Living kidney transplant, no further inclusion criteria provided Number analysed: withdrawal group (11); maintenance group (10) Mean age ± SD (years): not reported Sex: not reported Exclusion criteria: not reported
Interventions	Treatment group Steroid withdrawal 6 months after transplantation Control group Steroid maintenance Baseline immunosuppression TAC: adjusted to trough levels month 1: 10 to 15 ng/mL; thereafter: 5 to 10 ng/mL AZA: no further information provided Prednisone: no further information provided
Outcomes	Mortality Graft loss Acute rejection SCr
Notes	Did not report the number screened for eligibility or randomised
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	High risk	Stated 'randomly assigned' but no further information provided
Allocation concealment (selection bias)	Unclear risk	Not reported
Blinding (performance bias and detection bias) All outcomes	High risk	Open‐label
Blinding of participants and personnel (performance bias) All outcomes	High risk	Open‐label
Blinding of outcome assessment (detection bias) All outcomes	Low risk	Outcomes are objective hard endpoints
Incomplete outcome data (attrition bias) All outcomes	Unclear risk	Number of patients by group not reported for outcomes; unclear if ITT analysis performed
Selective reporting (reporting bias)	Low risk	Primary outcomes for this review reported
Other bias	Unclear risk	Funding source not reported Abstract‐only publication