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Published on: June 10, 2025
Type D personality, self-efficacy, and medication adherence in patients with heart failure-A mediation analysis
Jia-Rong Wu1, Eun Kyeung Song2, Debra K Moser3
1University of North Carolina at Chapel Hill, School of Nursing, Chapel Hill, NC 27599, USA.
Background:
Type D personality is associated with medication non-adherence. Both Type D personality and non-adherence are predictors of poor outcomes. Self-efficacy, which is modifiable, is also associated with medication adherence.
Objectives:
To determine the relationships among Type D personality, self-efficacy, and medication adherence in 84 heart failure patients.
Methods:
Self-efficacy, Type D personality, medication adherence, demographic and clinical data were collected. Hierarchical linear regression was used.
Results:
Type D patients were more likely to have lower self-efficacy (p = .023) and medication non-adherence (p = .027) than non-Type D patients. Low self-efficacy was associated with medication non-adherence (p < .001). Type D personality didn't predict medication adherence after entering self-efficacy in the model (p = .422), demonstrating mediation.
Conclusions:
Self-efficacy mediates the relationship between Type D personality and medication adherence. Developing and applying interventions to enhance self-efficacy may help to sever the link between Type D personality and poor outcomes.
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