Ref (type)	Population	Outcome, Interventions	Results and statistical analysis	Effect size	Favours
Healing
[95] RCT	341 people In review [94]	Healing rates at 24 weeks 65% with surgery plus compression 65% with compression alone Absolute numbers not reported	HR for healing: 0.84 95% CI 0.77 to 1.24		Not significant
[96] RCT	341 people Further report of reference [95]	Healing rates at 3 years 93% with surgery plus compression 89% with compression alone Absolute numbers not reported	P = 0.73		Not significant
[94] Systematic review	76 legs Data from 1 RCT	Healed ulcers 68% with superficial venous surgery 64% with compression therapy Absolute numbers not reported	P value not reported Reported as not significant		Not significant
[94] Systematic review	45 people Data from 1 RCT	Healed ulcers 100% with superficial venous surgery 96% with compression therapy Absolute numbers not reported	P value not reported Reported as significant	Effect size not calculated	superficial venous surgery
[94] Systematic review	500 legs Data from 1 RCT	Healed ulcers 93% with superficial venous surgery 89% with compression therapy Absolute numbers not reported	P value not reported Reported as not significant		Not significant
[94] Systematic review	200 legs Data from 1 RCT	Healed ulcers 83% with superficial venous surgery 73% with compression therapy Absolute numbers not reported	P value not reported Reported as not significant		Not significant