Qiuli 2010.

Methods	Trial design: RCT Trial grouping: parallel groups Ethics and informed consent: not stated Follow‐up period: 7 days Sample size estimate: not stated ITT analysis: yes; number randomised: 64; number analysed: 64 Funding: not stated
Participants	Inclusion criteria: Waterlow score18‐23 Department of neurosurgery Exclusion criteria: not reported Pretreatment 30 men and 34 women aged 55‐80 years 26 suffered from hemiplegia, 4 with paraplegia, 24 with coma and 6 with advanced tumours Waterlow Pressure Sore Risk Assessment Scale scores:18 to 23, haemoglobin: 90 g/L to 110 g/L fasting blood glucose: 4.2‐6.5 mmol/L 16 participants suffered from incontinence
Interventions	Intervention group: Mepilex dressing applied to weight‐bearing bony areas Control group: massage of bony areas Both groups turned 2‐3 hourly and nursed on air cushion beds
Outcomes	PU incidence Outcome type: dichotomous outcome Reporting: fully reported Unit of measure: numbers Direction: lower is better Data value: endpoint
Identification	Sponsorship source: not stated Country: China Setting: long‐term care Comments: no comments Author's name: Bao Qiuli Institution: Department of Neurosurgery Email: not provided Address: Second Affiliated Hospital of Harbin Medical University
Notes	PU classification system not described
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	Not stated
Allocation concealment (selection bias)	Unclear risk	Not stated
Blinding of participants and personnel (performance bias) All outcomes	High risk	Not stated, but difference in the appearance of dressing makes blinding impossible
Blinding of outcome assessment (detection bias) All outcomes	High risk	Not stated
Incomplete outcome data (attrition bias) All outcomes	Low risk	All participants included in the final analysis
Selective reporting (reporting bias)	Low risk	All outcomes reported in the paper were those outlined by the authors
Other bias	Unclear risk	Baseline characteristics not reported