Abstract
BACKGROUND: Identifying moderators of the effects of self-efficacy enhancing interventions could facilitate their refinement and more targeted, cost-effective delivery. Current theories and data concerning the potential moderating effect of depressive symptoms on interventions to enhance patient chronic illness self-management self-efficacy are conflicting. OBJECTIVES: To explore the moderating effect of depressive symptoms on the effect of an intervention to enhance patient self-efficacy for self-managing chronic illness. RESEARCH DESIGN: Regression analyses using baseline and postintervention (6 weeks) data from an ongoing randomized controlled trial. SUBJECTS: Patients (N = 415) aged ≥40 years recruited from a primary care network in Northern California with arthritis, asthma, chronic obstructive pulmonary disease, congestive heart failure, depression, and/or diabetes mellitus, plus impairment in ≥1 basic activity, and/or a score of ≥4 on the 10-item Center for Epidemiologic Studies Depression Scale (CES-D). MEASURES: Stanford self-efficacy scale, self-reported depression, CES-D, and Medical Outcomes Study Short Form health status questionnaire (SF-36) Mental Component Summary score. RESULTS: Regression analyses revealed the intervention was effective primarily in those with self-reported depression (interaction effect F = 8.24, P = 0.0003), highest CES-D score category (F = 5.68, P = 0.0037), and lowest (most depressed) Mental Component Summary-36 tercile (F = 4.36, P = 0.0135). CONCLUSIONS: Individuals with more depressive symptoms seem more likely to experience self-efficacy gains from chronic illness self-management training than individuals with less depressive symptoms. Future self-management training studies should stratify subjects within study groups by depressive symptom level to further explore its potential moderating effect.
Original language | English (US) |
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Pages (from-to) | 523-531 |
Number of pages | 9 |
Journal | Medical Care |
Volume | 46 |
Issue number | 5 |
DOIs | |
State | Published - May 2008 |
Keywords
- Chronic disease
- Depression
- Effect modifiers
- Home care services
- Self care
- Self-efficacy
ASJC Scopus subject areas
- Nursing(all)
- Public Health, Environmental and Occupational Health
- Health(social science)
- Health Professions(all)