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. Author manuscript; available in PMC: 2017 Feb 17.
Published in final edited form as: J Vasc Surg. 2015 Jan 16;61(4):1010–1019. doi: 10.1016/j.jvs.2014.11.073

Fig 1.

Fig 1

Identification of cases for analysis. AAA, Abdominal aortic aneurysm; CAS, carotid artery stenting; CEA, carotid endarterectomy; PVI, peripheral vascular intervention; TEVAR, thoracic endovascular aortic repair; VQI, Vascular Quality Initiative. *Proportion represents total urgent/emergency of all first time procedures. #Denominator is all eligible patients for analysis (elective first-time procedures). §Denominator is all patients available for perioperative analysis.