Journal
HEALTH EDUCATION & BEHAVIOR
Volume 36, Issue 1, Pages 127-137Publisher
SAGE PUBLICATIONS INC
DOI: 10.1177/1090198107309459
Keywords
African American; depressive symptoms; hypertension; medication adherence; self-efficacy
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Many studies have documented the negative effects of depression on adherence to recommended treatment; however, little is known about the mechanism underlying this relationship. Using the Kenny and Baron analytic framework of mediation, the authors assessed whether self-efficacy mediated the relationship between depression and medication adherence in 167 hypertensive African Americans followed in a primary care practice. Depressive symptoms are associated with poor medication adherence (beta = .013, p = .036) and low self-efficacy (beta = -.008 p = .023) Self-efficacy is negatively associated with medication adherence at follow-up (beta = -.612, p < .001). The relationship between depressive symptoms and medication adherence becomes nonsignificant when controlling for self-efficacy (beta = .010, p = .087). Implications for further examination into the mediating role of self-efficacy and the deleterious effect of depression on medication adherence are discussed.
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