A simultaneous test of the relationship between identified psychosocial risk factors and recurrent events in coronary artery disease patients
Stewart, Donna Eileen
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Psychosocial factors are increasingly recognized as risk indicators for coronary artery disease (CAD) prognosis, and they are likely interrelated. The objective of this study is to simultaneously test the relationship between key psychosocial constructs as independent factor scores, and recurrent events in CAD patients. One thousand two hundred and sixty eight CAD outpatients of 97 cardiologists were surveyed at two points. Recurrent events or hospitalization in the intervening 9 months were reported. Factor analysis of items from the Hospital Anxiety and Depression Scale, Perceived Stress Scale, the ENRICHD Social Support Inventory, and Hostile Attitudes Scale was performed, to generate orthogonal factor scores. With adjustment for prognostic variables, logistic regression analysis was performed to examine the relationship between these factor scores and recurrent events. Factor analysis resulted in a six-factor solution: hostility, stress, anxiety, depressive symptoms, support and resilience. Logistic regression revealed that functional status and anxiety, with a trend for depressive symptoms, were related to experiencing a recurrent event. In this simultaneous test of psychosocial constructs hypothesized to relate to cardiac prognosis, anxiety may be a particularly hazardous psychosocial factor. While replication is warranted, efforts to investigate the potential benefits of screening and investigate treatments is needed.