Table 3:

Keywords in the NLP algorithm for ascertainment of PAD status

Confirmation Key Words Disease Location	Confirmation Key Words Diagnosis	Exclusion Key Words
leg/legs; lower limbs/limb; lower extremities/extremity; Iliac/femoral/ tibial/popliteal artery/arteries; distal/ infrarenal/abdominal aorta/aorto-(bi)iliac/ aorto(bi)iliac/aorto(bi)-iliac; aorto-(bi)femoral; foot, toe, toes, shin; plantar, heel, ankle, interdigital; below/above knee, claudication/calf pain;	ischemic ulcer/ulcers; ASO/Arteriosclerosis obliterans/arterial sclerosis obliterans/atherosclerotic disease; PAD/peripheral arterial disease /peripheral vascular disease/ peripheral arterial occlusive disease; arterial occlusive disease/ occlusion/ occluded; stenosis; NCV/non compressible vessels; NCA/non compressible arteries; PCV/poorly compressible vessels; stiff vessels/ arteries ischemia; positive ABI/ankle brachial index/vascular labs/ extremities study/arterial studies; revascularization/recanalization/bypass/angioplasty/PTA/sten ting/stent/graendarterectomy/endarterectomies; thrombectomy/thromboembolectomy/throm bosis/embolectomy/embolectomies.	family history of, upper extremities / upper extremity; arm/arms, hand(s); brachial artery, axillary artery, radial artery, ulnar artery; carotid, innominate artery, subclavian artery; mesenteric artery; celiac artery; AAA/abdominal aortic aneurysm/abd aortic aneurysm; renal arteries/ artery; coronaries, coronary arteries/ artery/cerebrovascular-disease/arteries/artery; pseudoclaudication/ pseudoclaudicatory pain. Amputation; traumatic /trauma; sarcoma/osteoma; diabetic foot, hammer toe/ toes; vascular calcification; varicose veins; lower extremity/extremities edema/cellulitis/venous system; carotid artery disease/spinal ischemia.