Ref (type)	Population	Outcome, Interventions	Results and statistical analysis	Effect size	Favours
Prevention of pressure ulcers
RCT	46 hospitalised elderly people In review	Non-blanching erythema 24 hours 3/23 (13%) with 30° tilt position 2/23 (9%) with 90° lateral and supine position	P >0.05		Not significant
RCT	46 hospitalised elderly people In review	Visible breaks in the epidermis 24 hours 0/23 (0%) with 30° tilt position 0/23 (0%) with 90° lateral and supine position	Reported as non-significant P value and significance not reported		Not significant
RCT	46 hospitalised elderly people In review	Proportion of people who found the position difficult to maintain 20/23 (87%) with 30° tilt position 5/23 (22%) with 90° lateral and supine position	P <0.05	Effect size not calculated	90° lateral and supine position