Patterson 1997.

Methods	Randomised, parallel group design
Participants	55 patients with arterial claudication symptoms >3 months (aged 50‐75 years)
Interventions	12 week supervised exercise (predominantly aerobic, treadmill 1hr 3 x wk) versus 12 week unsupervised (walking for 20‐40min 3 x wk)
Outcomes	At 6 months maximum walking time to claudication and claudication pain time was significantly reduced in the supervised exercise group. There was no difference in SF‐36 scores between groups.
Notes	17 dropouts at 6 months. Study conducted in USA
Risk of bias
Bias	Authors' judgement	Support for judgement
Allocation concealment?	Unclear risk	B ‐ Unclear