- Research Article
- 10.1161/circ.148.suppl_1.17668
Abstract 17668: Association of Female Sex With Outcomes in Older Patients With STEMI
- Nov 07, 2023
- Circulation
- Minji Seok + 1 more +1
Introduction: Acute coronary syndrome is increasingly affecting the aging population. Despite this, we have observed that older patients presenting with acute coronary syndromes often experience poorer outcomes in the setting of age-related comorbidities and undergo decreased rates of reperfusion therapy. In this analysis, we aimed to uncover any sex differences in outcomes amongst older female patients admitted with ST-Elevation Myocardial Infarction (STEMI). Methods: We utilized the National Inpatient Sample data from 2020 to isolate cases where patients were primarily admitted for STEMI. From this pool, we then identified two subsets: individuals who were aged 65 and over and females. We implemented both logistic and linear regression analyses and accounted for any potential confounding factors. We considered our findings to be statistically significant if the 2-tailed p-value was <0.05. Results: During 2020, there were a total of 159,890 hospitalizations for STEMI. Among these cases, 46.3% or 74,013 involved patients over 65 years old. After adjusting for various factors such as race, hospital characteristics (including bed size, location, and teaching status), insurance coverage, income level, and Elixhauser comorbidities, we noted a number of significant findings for women over the age of 65 admitted due to STEMI. These included a heightened in-hospital mortality rate (aOR 1.36, 95% CI 1.23- 1.52), reduced usage of mechanical ventilation (aOR 0.86, 95% CI 0.78 - 0.96), less likelihood to receive mechanical circulatory support (aOR 0.64, 95% CI 0.53 - 0.78), and a decreased probability to undergo PCI (aOR 0.87, 95% CI 0.81 - 0.94). Conclusion: In hospital admissions for STEMI, we observed that older female patients experienced increased complications during hospitalization and were less likely to undergo invasive reperfusion therapy. Additional research would be required to identify if these sex differences can be attributed to variations in initial presentation before STEMI or if changes in clinical management by sex are contributing to adverse outcomes.
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