Illness intrusiveness, health locus of control, and anxiety symptoms among veterans with congestive heart failure.

Disease severity, illness intrusiveness, and health locus of control (HLC) each contribute to psychosocial wellbeing in patients with congestive heart failure (CHF). To better understand the relationships between these variables regarding anxiety symptoms, we analyzed data from 116 adult male veterans with comorbid CHF and anxiety. Results suggested that illness intrusiveness significantly mediated the relation of CHF severity to anxiety symptom severity, and that the illness intrusiveness domains of physical well-being/diet, work/finances, and other aspects of life (religious/spirituality, community/civic, self-improvement/expression) were also significant mediators of that relationship. The relation of illness intrusiveness to anxiety was not moderated by internal HLC. Findings highlight the importance of assessing and treating various aspects of illness intrusiveness to manage anxiety symptoms in CHF patients.