National Healthcare Quality and Disparities Report
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Research Studies is a compilation of published research articles funded by AHRQ or authored by AHRQ researchers.
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1 to 2 of 2 Research Studies DisplayedAnjorin AC, Marcaccio CL, Patel PB
Racial and ethnic disparities in 3-year outcomes following infrainguinal bypass for chronic limb-threatening ischemia.
This study’s objective was to determine the differences in 3-year outcomes after open infrainguinal bypass for chronic limb-threatening ischemia (CLTI) stratified by race/ethnicity and explored the potential factors contributing to these differences to help determine reasons why outcomes are worse for racial and ethnic minorities. The authors identified all CLTI patients who had undergone primary open infrainguinal bypass in the Vascular Quality Initiative registry from 2003 to 2017 with linkage to Medicare claims through 2018 for the 3-year outcomes. Primary outcomes were the 3-year rates of major amputation, reintervention, and mortality. They also recorded 30-day major adverse limb events (MALE) defined as major amputation or reintervention. Of the 7108 patients with CLTI 79% were non-Hispanic White, 15% were Black, 1% were Asian, and 6% were Hispanic. Compared with White patients, Black patients had higher rates of 3-year major amputation (Black vs White, 32% vs 19%), reintervention (Black vs White, 61% vs 57%), and 30-day MALE (Black vs White, 8.1% vs 4.9%) but lower mortality (Black vs White, 38% vs 42%). Hispanic patients also experienced higher rates of amputation (Hispanic vs White, 27% vs 19%), reintervention (Hispanic vs White, 70% vs 57%), and MALE (Hispanic vs White, 8.7% vs 4.9%). However, mortality was similar between Hispanic vs White groups. A higher presence of comorbidities in Black and Hispanic patients with CLTI is considered the greatest contributing factors to higher amputation and reintervention rates.
AHRQ-funded; HS027285.
Citation: Anjorin AC, Marcaccio CL, Patel PB .
Racial and ethnic disparities in 3-year outcomes following infrainguinal bypass for chronic limb-threatening ischemia.
J Vasc Surg 2022 Nov;76(5):1335-46.e7. doi: 10.1016/j.jvs.2022.06.026..
Keywords: Racial and Ethnic Minorities, Disparities, Outcomes, Surgery, Cardiovascular Conditions
Fitzgerald DC, Simpson AN, Baker RA DC, Simpson AN, Baker RA
Determinants of hospital variability in perioperative red blood cell transfusions during coronary artery bypass graft surgery.
This observational cohort study’s objective was to identify to what extent distinguishing patient and procedural characteristics can explain center-level transfusion variation during coronary artery bypass grafting (CABG) surgery. The study used patients from the Perfusion Measures and Outcomes Registry from 43 adult cardiac surgical programs from July 2011 through June 2017. Of the 22,272 adult patients undergoing isolate CABG surgery using cardiopulmonary bypass, 7241 (32.5%) received at least 1 U allogeneic red blood cells. Patients who received transfusions were older (68 vs 64 years), were women (41.5% vs 15.9%), and had a lower body surface area, respectively. The majority of center-level transfusion variations could not be explained through models containing both patient and intraoperative factors.
AHRQ-funded; HS026003.
Citation: Fitzgerald DC, Simpson AN, Baker RA DC, Simpson AN, Baker RA .
Determinants of hospital variability in perioperative red blood cell transfusions during coronary artery bypass graft surgery.
J Thorac Cardiovasc Surg 2022 Mar;163(3):1015-24.e1. doi: 10.1016/j.jtcvs.2020.04.141..
Keywords: Surgery, Heart Disease and Health, Cardiovascular Conditions, Hospitals, Practice Patterns, Disparities