Saab 2015.

Methods	Trial design: RCT Trial grouping: parallel groups Ethics and informed consent: not stated Follow‐up period: not stated Sample size estimate: not stated ITT analysis: yes; number randomised: 80; number analysed: 80 Funding: not stated
Participants	Inclusion criteria: people admitted to SICU from July‐November 2014 Exclusion criteria: not reported Pretreatment: 44% women mean age was 62 (17.2) years mean Braden score was 15.1
Interventions	Intervention group: application of a multi‐layered dressing incorporating hydrocellular foam, hyper‐absorber, lock‐away core with a silicone wound contact layer the buttocks and the sacrum were examined daily the dressing was replaced as needed Control group: no dressing
Outcomes	PU incidence Outcome type: dichotomous outcome Unit of measure: numbers Direction: lower is better Data value: endpoint
Identification	Sponsorship source: not reported Country: USA Setting: surgical ICU Comments: no comment Author's name: I Saab Institution: Henry Ford Hospital Email: not provided Address: 2799 West Grand Boulevard, Detroit, MA 48202
Notes
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	Sequence generation not stated
Allocation concealment (selection bias)	Unclear risk	Not stated
Blinding of participants and personnel (performance bias) All outcomes	High risk	Open‐label
Blinding of outcome assessment (detection bias) All outcomes	High risk	Open‐label
Incomplete outcome data (attrition bias) All outcomes	Low risk	Outcomes reported for those randomised to each group
Selective reporting (reporting bias)	Low risk	PU incidence reported
Other bias	Unclear risk	As this is an abstract, this element is unclear