Abstract
Introduction: Several recent publications demonstrated worse outcomes of interventional treatment of peripheral arterial disease (PAD) in patients of African American (AA) descent compared to Caucasians (C), and in female patients compared to male patients. However, studies addressing sex differences in outcomes, included predominantly white female patients. To our knowledge, there are no published studies specifically addressing outcomes of interventional treatment of PAD in female patients of African American descent. Aims: 1. To determine if the outcomes of interventional treatment of PAD in female patients of African American (FAA) descent differ from male African American patients (MAA), and Caucasian female patients (FC). If such differences exist, to identify factors associated with it. Methods: This study has a cross-sectional design with systematically retrospective data collection by the National Vascular Quality Initiative. Included in this study was data on patients treated with endovascular and open surgical options for symptomatic PAD. Statistical analysis was done using IBM Statistic SPSS V25. Results: 447,263 unique cases containing required data were available in the VQI database. Among them, 171,250 were female patients, of which 32,966 were FAA, 126,519 FC, and 39,461 MAA. This race and gender distribution is not significantly different from the US population structure (US Census Bureau 2023). 1 However, female to male ratio was higher in AA (0.83) compared to C (0.58, p<0.0001). FAA were younger (65.143+/-9.59) compared to FC (69.16+/-10.32, P<0.00001). Comparison of comorbidities, smoking rates, pre-interventional medications and post-interventional outcomes are listed in Table 1. Multivariate analysis confirmed higher amputation rate among FAA compared to FC and to MAA and showed no significant difference in mortality. Conclusions: FAA patients who require interventional treatment for PAD have significantly higher rate of hypertension and diabetes compared to FC and MAA patients and have higher amputation rates. It appears that differences in clinical outcomes of PAD treatment in FAA are related mostly if not entirely to poorly managed comorbidities existed prior to intervention.
Published Version
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