b'Scientific Session Abstracts SUNDAY APRIL 21, 2024Table II. One-year mortality following IIB vs PVI by body mass index.Univariable MultivariableIIB N (%) PVI NIIB vs PVI HR 542 (11.6%) (%) 3,961p value (95% CI) p valueUnderweight (88.3%)(BMI 18.5 kg/m2)84 (16.0%) 817 (20.6%) 0.014 0.830.171(0.63,1.09)IIB N (%)PVI N (%)IIB vs PVI HR 4,55930,848p value (95% CI) p valueNormal Weight (12.9%) (87.1%)(BMI 18.5-24.9 kg/m2)503 5,0020.001 0.800.001(11.0%) (15.2%) (0.72,0.87)IIB N (%)PVI N (%)IIB vs PVI HR 4,684 34,186 p value (95% CI) p valueOverweight (12.1%) (87.9%)(BMI 25-29.9 kg/m2)453 (9.7%) 4,5670.001 0.870.010(13.4%) (0.80,0.97)IIB N (%)PVI N (%)IIB vs PVI HR 3,721 30,660 p value (95% CI) p valueObese (10.8%) (89.2%)(BMI 30-39.9314 (8.4%) 3,703 0.001 0.850.008(12.1%) (0.75,0.96)IIB N (%) 436PVI N (%)IIB vs PVI HR (8.3%) 4,808 p value (95% CI) p valueMorbidly Obese (91.7%)(BMI 40- 49.9 kg/m2)44 (10.1%) 613 (12.8%) 0.108 0.940.736(0.65,1.35)Outcomes are adjusted for patient demographics, comorbidities, medications, and prior procedures. OR,Odds ratio, IIB, Infrainguinal Bypass, PVI, peripheral vascular intervention, BMI, body mass index. R eference=PVI. Significant114SOUTHERN CALIFORNIA VASCULAR SURGICAL SOCIETY'