Kiss 2001.

Methods	This was a randomised controlled trial.
Participants	40 boys with penile lichen sclerosus
Interventions	A: mometasone furoate 0.05% ointment B: placebo once daily These were taken for 5 weeks.
Outcomes	Outcomes of the trial 1) Clinical score of phimosis
Notes	Setting: children's hospital Country: Hungary Funding source: not reported
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	There was no description of the process of randomisation.
Allocation concealment (selection bias)	Unclear risk	There was no description of the allocation concealment.
Blinding (performance bias and detection bias) All outcomes	Unclear risk	There was no description of blinding.
Incomplete outcome data (attrition bias) All outcomes	Low risk	4 boys were lost to follow up ‐ 3 in whom clinically suspected penile LS was not confirmed by pathological examination. There was no significant difference in the withdrawal rate between the treatment and control groups.
Selective reporting (reporting bias)	Low risk	A change in the clinical score of phimosis and adverse drug reactions was reported.
Degree of certainty that the participants have LS	Low risk	All penile LS cases underwent circumcision, and those that could not be proven by biopsy were excluded.
Baseline assessment of the participants	Unclear risk	This was not performed.
Drug identity, source, dose, duration of treatments, and adequacy of instructions	Low risk	The treatments were standardised.
Description and standardisation of outcome measures	Low risk	Phimosis was graded 1 to 4.
Discontinuation of previous treatments	Unclear risk	There was no relevant description.
Permission or standardisation of concomitant treatments	Unclear risk	There was no relevant description.
Use and appropriateness of statistical analyses where tabulated data could not be extracted from the original publication	Unclear risk	Student's t‐test was used to compare the scores before and after treatments, but Wilcoxon signed rank test should have been used.