Nakamura 1995.

Study characteristics
Methods	Randomisation method: random number table Allocation: not stated Intervention model: parallel Blinding: none
Participants	Country: United States of America No. of participants: 39: 2.7 mm TEC atherectomy plus BA: 13 4.0 mm TEC atherectomy plus BA: 13 BA: 13 Age (mean (years) ± SD): 2.7 mm TEC: 64 ± 6 4.0 mm TEC: 70 ± 6 BA: 61 ± 4.1 Inclusion criteria: occluded SFA with 1 to 2 block claudication Exclusion criteria: those with previous femoropopliteal graft or "insufficient run‐off vessels"
Interventions	BA versus 2.7 mm TEC atherectomy plus BA versus 4.0 mm TEC atherectomy plus BA
Outcomes	Initial and 6‐month vessel patency Preprocedure and 6‐month ABI
Notes	6‐month ABI only reported for participants with primary patency at 6 months
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Low risk	Random number table used for randomisation.
Allocation concealment (selection bias)	High risk	Not specifically stated.
Blinding of participants and personnel (performance bias) All outcomes	High risk	Neither participants nor personnel were blinded.
Blinding of outcome assessment (detection bias) All outcomes	High risk	No mention of blinding of outcome assessment.
Incomplete outcome data (attrition bias) All outcomes	Low risk	Complete data available to 6 months.
Selective reporting (reporting bias)	Unclear risk	Initial and 6 month patencies reported. ABI only reported for participants whose vessels remained patent at 6 months.
Other bias	High risk	No mention of antiplatelet protocol pre‐ or postprocedure.