Ref (type)	Population	Outcome, Interventions	Results and statistical analysis	Effect size	Favours
Maintenance of remission
RCT	90 people with psoriasis covering less than 10% of body surface, whose psoriasis had already cleared, or almost cleared, with the use of betamethasone dipropionate In review	Proportion of people whose psoriasis remained clear, or nearly clear 6 months 27/46 (59%) with weekly application of betamethasone dipropionate 7/44 (16%) with placebo	P <0.001	Effect size not calculated	betamethasone