Title: Self-rated health and coronary artery disease severity in patients with angina pectoris
- Michał Skrzypek, Teresa Widomska-Czekajska
- Original articles
- Polish Journal of Cardiology
- Start page:
- Final page:
- functional status, quality of life, angina pectoris, coronary artery disease
Introduction: Studies on functional status in coronary patients have shown poor correlation between real-life activity profile and clinical measures such as exercise capacity on the treadmill and severity of coronary artery disease (CAD) in coronary angiography assessment. Evaluation of health-related quality of life may be suitable for explaining the variability in functioning of CAD patients with similar level of clinical impairment. Both patient-reported symptom status and physical function are major components of disability determina-tions and a key contributors to health-related quality of life (QOL) in this group of patients. Aim of the study: The goal of the current investigation was to evaluate the relation of QOL in angina patients to the severity of coronary artery disease in angiographic assessment.
Materials and methods: The study included 100 patients with stable angina, mean age 49.3±6.5 qualified for diagnostic coronary angiography. Patients completed self-administered questionnaires for QOL assessment. Patient-reported functional capacity was measured by the Duke Activity Status lndex(scaled 11.5-33) and symptom status by the Health Complaints Scalę (scaled 0-96).
Results: QOL scores were not associated with CAD severity. Patients with one, two and three vessel disease did not differ substantially regarding QOLmeasures. Biomedical clinical factors explain only 16%of QOL variability. Significant gender-related differences in QOL scores were found: females report morę somatic complaints after controlling for CAD severity (p=0.001). Subjects without significant coronary stenoses show paradoxically lower QOL scores (p<0.05) after controlling for the impact of gender. Conclusions: Extent of CAD in angiography assessment is not correlated with QOL of patients with angina pectoris.