Ref (type)	Population	Outcome, Interventions	Results and statistical analysis	Effect size	Favours
Re-intervention / restenosis
RCT	279 people with intermittent claudication and iliac artery stenosis	Proportion of people requiring reintervention 10/143 (7%) with percutaneous transluminal angioplasty (PTA) plus routine stenting 6/136 (4%) with PTA plus selective stenting	ARR +3% 95% CI –3% to +8%		Not significant
RCT	73 people with severe intermittent claudication, chronic critical limb ischaemia or ischaemic ulcers, and superficial femoral artery stenosis or occlusion	Proportion of people with >50% restenosis according to duplex ultrasound 3 months 1/34 (3%) with PTA plus routine stenting (nitinol self-expanding stents) 7/37 (19%) with PTA with optional secondary stenting	P = 0.033	Effect size not calculated	PTA plus routine stenting
RCT	73 people with severe intermittent claudication, chronic critical limb ischaemia or ischaemic ulcers, and superficial femoral artery stenosis or occlusion	Proportion of people with >50% restenosis 6 months 7/32 (22%) with PTA plus routine stenting (nitinol self-expanding stents) 20/36 (56%) with PTA with optional secondary stenting	Intention-to-treat analysis P = 0.005	Effect size not calculated	PTA plus routine stenting
RCT	227 people with severe claudication or limb-threatening stenosis of the superficial femoral artery	Proportion of people who died or had >50% restenosis 1 year 30/89 (34%) with PTA plus routine stenting 29/86 (33%) with PTA plus selective 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	Proportion of people with restenosis 12 months 18/49 (37%) with PTA plus routine stenting (primary nitinol self-expanding stents) 33/52 (63%) with balloon angioplasty with optional secondary stenting	P = 0.01	Effect size not calculated	PTA plus routine stenting
RCT	73 people with severe intermittent claudication, chronic critical limb ischaemia or ischaemic ulcers, and superficial femoral artery stenosis or occlusion	Proportion of people with >50% restenosis according to duplex ultrasound 12 months 11/32 (34%) with PTA plus routine stenting (nitinol self-expanding stents) 22/36 (61%) with PTA with optional secondary stenting	Intention-to-treat analysis P = 0.028	Effect size not calculated	PTA plus routine stenting