Ref (type)	Population	Outcome, Interventions	Results and statistical analysis	Effect size	Favours
Healing
[89] RCT	120 people with compression	Proportion of people healed at 12 weeks 55% with porcine extracellular matrix graft 34% with usual care Absolute numbers not reported	RR 1.59 95% CI 1.06 to 2.42 RR reported for healing with matrix	Small effect size	matrix graft