Ref (type)	Population	Outcome, Interventions	Results and statistical analysis	Effect size	Favours
Level of pain
[11] Systematic review	93 patients with second-degree burns (burn sites of individual randomised to either hydrogel or standard treatment) Data from 1 RCT	Pain (measurement tool not specified) days 2, 4, and 8 with hydrogel dressing with standard care	P <0.0001 Unclear if this is a combined analysis for all time points Intra-individual randomisation may influence the pain results RCT[28] blinding not reported	Effect size not calculated	hydrogel dressing
[11] Systematic review	62 patients with partial-thickness burns (burn sites of individual randomised to either hydrogel or standard treatment) Data from 1 RCT	Mean pain (measurement tool not further specified, lower score for lower level of pain) overall assessment of at end of study 2.73 with hydrogel dressing 4.04 with standard care	MD –1.31 95%CI –2.37 to –0.25 P = 0.016 Intra-individual randomisation may influence the pain results RCT[27] blinding not reported	Effect size not calculated	hydrogel dressing