Abstract 16070: Gender Disparity in the Outcomes and the Rates of Revascularization of Patients With Stable Coronary Artery Disease in the United States
Background: There is a gender disparity in the outcomes and therapies of patients with myocardial infarction. Female gender is associated with poorer outcomes and lower rates of revascularization. However, whether the outcomes and the revascularization rates of women with stable coronary artery disease (CAD) are different from men is not known.
Methods: We used the Healthcare Cost and Utilization Project (HCUP) to study national rates for admissions due to CAD as well as the outcomes and the rates of procedures for revascularization therapy with bypass surgery or percutaneous coronary intervention during the year of 2005.
Results: Out of a total of 917,478 admissions for coronary atherosclerosis, 333,757 (36%) were women and 583,581 (64%) were men. Women had longer lengths of stay compared to men (3.6 ± 0.1 vs 3.5 ± 0.1 days, respectively; P<0.001) and higher in-hospital mortality rates (0.67 % vs 0.42%; respectively; P<0.01). The proportion of women admitted with a diagnosis of coronary atherosclerosis and undergoing coronary bypass surgery with use of internal mammary artery was lower compared to men (1.9% vs 3.1%, respectively; P<0.001), as was the proportion of women undergoing percutaneous coronary intervention (46% vs 49%, respectively; P<0.001).
Conclusion: Our data demonstrate a significant gender disparity in outcomes and utilization of surgical or percutaneous interventions in patients with CAD. Further studies are needed to better understand the link between the poorer outcomes of women with stable CAD and the lesser utilization of revascularization procedures and to better define the underlying reasons for this gender disparity.
- © 2010 by American Heart Association, Inc.