Table II.

Unadjusted Cox regression for 3-year outcomes after open infrainguinal bypass by race/ethnicity with non-Hispanic White race as the reference group.

Outcome	3-year event rates (%)	uHR (95% CI)	P-value
Amputation  Non-Hispanic White  Black  Hispanic  Asian	19 32 27 20	Ref 1.9 (1.7–2.2) 1.6 (1.3–2.0) 0.93 (0.4–2.0)	Ref <.001 <.001 .849
Re-intervention  Non-Hispanic White  Black  Hispanic  Asian	57 61 70 55	Ref 1.2 (1.1–1.3) 1.4 (1.2–1.6) 0.79 (0.51–1.2)	Ref .001 <.001 .298
Mortality  Non-Hispanic White  Black  Hispanic  Asian	42 38 38 36	Ref 0.90 (0.81–0.99) 0.88 (0.76–1.0) 0.83 (0.52–1.3)	Ref .026 .095 .423
MALE*  Non-Hispanic White  Black  Hispanic  Asian	4.9 8.1 8.7 8.5	Ref 1.3 (1.2–1.4) 1.5 (1.3–1.7) 0.71 (0.46–1.1)	<.001 <.001 0.12

*Data for MALE represent 30-day event rates and hazard ratios.

Abbreviations: uHR = unadjusted hazard ratio; CI = confidence interval; MALE = major adverse limb events