Related Experiment Videos
Gender differences in patients undergoing coronary artery bypass surgery, from a mandatory statewide database
M R Williams1, A F Choudhri, D L Morales
1Division of Cardiothoracic Surgery, Department of Surgery, College of Physicians and Surgeons, Columbia University, New York, NY, USA. mw365@columbia.edu
The Journal of Gender-Specific Medicine : JGSM : the Official Journal of the Partnership for Women'S Health at Columbia
|March 20, 2001
Summary
Female gender is an independent risk factor for mortality after coronary artery bypass grafting (CABG). Smaller size and advanced age do not fully explain this disparity, suggesting other factors contribute to higher female mortality rates.
Area of Science:
- Cardiovascular Surgery
- Surgical Outcomes
- Health Disparities
Background:
- Women exhibit higher mortality rates than men following coronary artery bypass grafting (CABG).
- The reasons for this observed gender-based disparity in CABG outcomes remain incompletely understood.
Purpose of the Study:
- To investigate the underlying factors contributing to the increased mortality observed in women undergoing CABG.
- To identify specific demographic, clinical, and procedural variables associated with higher female mortality.
Main Methods:
- Retrospective analysis of 19,224 patients undergoing CABG in New York State in 1995.
- Utilized univariate (Student t test, chi-square, Fisher exact test) and multivariate (logistic regression) analyses.
- Evaluated 27 potential risk factors, including body surface area, age, degree of revascularization, and internal mammary artery use.
Main Results:
- Smaller body surface area was a risk factor for mortality in both genders.
- Advanced age increased mortality risk for women across all age groups.
- Women received lesser revascularization and less frequent internal mammary artery use.
Conclusions:
- Smaller size and advanced age alone do not account for the independent risk of female gender in CABG mortality.
- Increased comorbidity in women at referral, potentially due to less aggressive evaluation, may contribute to higher mortality.
- Further research is needed to address gender-specific factors influencing CABG outcomes.