Independent predictors of physical health in community-dwelling patients with coronary heart disease in Singapore

Wenru Wang, Ying Jiang, Chi-Hang Lee

Patients with coronary heart disease (CHD) experienced poor physical health which was found to be associated with higher hospital readmission rates and increased mortality. The study aimed to identify the independent predictors of physical health in Singaporean patients with CHD. A consecutive sample of 129 patients with CHD was recruited from the medical heart clinic of a tertiary public hospital in Singapore. A set of questionnaires including the Short Form 12-item health survey version 2, Perceived Stress Scale, Hospital Anxiety and Depression Scale, and Cardiac Self-Efficacy Scale were used to measure the study outcomes. The patients' socio-demographic and clinical data were also collected. A multivariate linear regression analysis indicated that depression (B = -0.766, p < 0.05) and self-efficacy for maintaining function (B = 2.351, p < 0.05) remained significant while the other variables were adjusted and identified as the independent predictors of physical health in Singaporean patients with CHD. This study has shed some light on the key factors influencing the physical health of Singaporean patients with CHD. The finding suggests tailored interventions that target mitigating a patient's depression and promote self-efficacy for maintaining function may be helpful in improving patients' physical health and quality of life.