Ref (type)	Population	Outcome, Interventions	Results and statistical analysis	Effect size	Favours
Quality of life
RCT	279 people with intermittent claudication and iliac artery stenosis	Improvement in quality of life (assessed using the RAND-36 questionnaire) 3 months with percutaneous transluminal angioplasty (PTA) plus routine stenting with PTA plus selective stenting Absolute results not reported	Reported as not significant P value not reported		Not significant
RCT	104 people with severe claudication caused by stenosis or occlusion of the superficial femoral artery Further report of reference	Physical component of the short form-36 (SF-36) quality-of-life questionnaire 6 months 33 with PTA plus routine stenting (primary nitinol self-expanding stents) 37 with balloon angioplasty with optional secondary stenting	P = 0.8		Not significant
RCT	104 people with severe claudication caused by stenosis or occlusion of the superficial femoral artery Further report of reference	Mental component of the SF-36 quality-of-life questionnaire 6 months 53 with PTA plus routine stenting (primary nitinol self-expanding stents) 50 with balloon angioplasty with optional secondary stenting	P = 0.5		Not significant
RCT	104 people with severe claudication caused by stenosis or occlusion of the superficial femoral artery Further report of reference	Physical component of the SF-36 quality-of-life questionnaire 12 months 35 with PTA plus routine stenting (primary nitinol self-expanding stents) 37 with balloon angioplasty with optional secondary stenting	P = 0.9		Not significant
RCT	104 people with severe claudication caused by stenosis or occlusion of the superficial femoral artery Further report of reference	Mental component of the SF-36 quality-of-life questionnaire 12 months 54 with PTA plus routine stenting (primary nitinol self-expanding stents) 51 with balloon angioplasty with optional secondary stenting	P = 0.1		Not significant