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Atrial fibrillation (AF) is highly prevalent and is associated with significant morbidity, mortality and healthcare costs. However, little is known about racial disparities in AF outcomes.
Using data from the 2009-2010 Healthcare Cost and Utilization Project, we explored differences in AF hospitalizations and in-hospital mortality, adjusting for pertinent patient comorbidities.
Analyses were derived from 165,359 AF hospitalizations with available race/ethnicity data. There were a total of 6,387 hospitalizations for African American (AA) men and 6,280 AA women. Both AA women and men were significantly younger at time of index hospitalization for AF than white inpatients [mean age 67.4 (SD 15.1) vs. 75 (SD 12.1) for women and 59.3 (SD 15.2) vs. 66.7 (SD 13.7) for men, p<0.001]. Mortality rates were higher for AA women and men as compared with their white counterparts (figure). After adjusting for clinical covariates and length of stay, AA race was an independent predictor of in-hospital mortality with an Odds Ratio (95% CI) of 1.4 (1.1, 1.8) for AA women and 1.8 (1.4, 2.5) for AA men.
Using a large, contemporary sample of inpatients, we found significant racial and gender disparities in AF hospitalizations and mortality. Our study suggests a high mortality burden of AF in younger AA men and women. Future studies are necessary to explore determinants of these significant racial and gender disparities in the presentation and outcomes of AF.
Moderated Poster Contributions
Poster Sessions, Expo North
Sunday, March 10, 2013, 3:45 p.m.-4:30 p.m.
Session Title: Surprises and Controversies in Outcomes Research
Abstract Category: 28. Quality of Care and Outcomes Assessment
Presentation Number: 1243M-95
- 2013 American College of Cardiology Foundation