. Author manuscript; available in PMC: 2018 Mar 1.

Published in final edited form as: J Vasc Surg. 2016 Dec 14;65(3):626–634. doi: 10.1016/j.jvs.2016.09.036

Table V.

Adjusted Odds Ratios for Perioperative Mortality By Volume Quintile with High Volume (Quintile 5 as Reference)

	Surgeon Volume	Surgeon Volume Adjusted for Hospital Volume	Hospital Volume	Hospital Volume Adjusted for Surgeon Volume
	Odds Ratio (95% CI)		Odds Ratio (95% CI)
Quintile 1
EVAR	1.1 (0.9–1.3)	0.9 (0.7–1.1)	1.4 (1.2–1.7)^a	1.5 (1.2–1.9)^a
Open	1.6 (1.4–1.9)^a	1.5 (1.3–1.7)^a	1.5 (1.3–1.8)^a	1.3 (1.1–1.5)^a
Quintile 2
EVAR	1.0 (0.8–1.2)	0.9 (0.7–1.1)	1.2 (1.0–1.4)	1.3 (1.0–1.6)^a
Open	1.4 (1.2–1.7)^a	1.3 (1.1–1.6)^a	1.4 (1.2–1.7)^a	1.2 (1.1–1.5)^a
Quintile 3
EVAR	0.9 (0.8–1.1)	0.9 (0.7–1.1)	1.2 (1.0–1.4)	1.3 (1.0–1.6)^a
Open	1.3 (1.1–1.5)^a	1.2 (1.0–1.4)^a	1.3 (1.1–1.5)^a	1.2 (1.0–1.4)
Quintile 4
EVAR	0.9 (0.7–1.1)	0.8 (0.7–1.0)	1.2 (1.0–1.4)	1.2 (1.0–1.5)
Open	1.2 (1.0–1.4)^a	1.2 (1.0–1.4)	1.2 (1.0–1.4)	1.1 (1.0–1.3)

Statistically significant effect, CI: Confidence Interval