Psychological distress, social support, and use of outpatient care among adult men and women with coronary artery disease or other non-cardiovascular chronic disease

OBJECTIVES: Psychological distress, as defined by elevations in symptoms of depression, anxiety, and/or perceived stress, is frequent in patients with chronic diseases, such as coronary artery disease (CAD). While psychological distress is known to impact disease outcomes, less is known about its influence on health care utilization, or on the factors that may modify these relationships. This prospective study examined whether 1) psychological distress predicts greater use of outpatient care services over a period of up to eight years in middle-aged to older individuals with CAD or other non-cardiovascular chronic diseases; 2) this relationship differs according to sex, presence of CAD, and/or social support. METHODS: Men and women (N = 1236; aged 60.85 ± 6.95 years) with and without CAD completed validated questionnaires on symptoms of depression, anxiety, perceived stress, and social support. Number of medical outpatient visits was obtained from the Régie de l'assurance maladie du Québec. Analyses included bivariate correlations, hierarchical regressions, and moderation analyses, controlling for sociodemographic and lifestyle variables. RESULTS: Psychological distress, social support, and yearly outpatient visits were significantly correlated (ps < 0.05). In regression analyses, only depressive symptoms were associated with significantly greater use of outpatient care (b = 0.048, p = .004), particularly among CAD patients (b = 0.085, p < .001). Neither sex nor social support moderated this relation. CONCLUSION: Depression predicted greater outpatient visits in patients with chronic disease, especially CAD patients. More research is needed to determine whether psychosocial interventions may have an impact on health care utilization.