The effects of a self-efficacy enhancing Internet intervention on the dietary management of cholesterol
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Dr. Claire P. Donaghy, PhD, RN
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- Iota Alpha at-Large
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Cardiovascular disease continues to be the leading cause of morbidity and mortality in the United States. Elevated serum cholesterol is a risk factor for cardiovascular disease. Diets high in saturated fat and cholesterol contribute to elevation in blood cholesterol. The purpose of this study was to develop and test a self-efficacy enhancing Internet intervention for dietary reduction of cholesterol. Data were analyzed on 3 8 employees of a community college who participated in an Internet dietary change intervention during the fall semester of 2003. Analysis of covariance (ANCOVA) controlling for baseline self-efficacy did not reveal significant differences in LDL cholesterol, dietary adherence, nutrition knowledge, or self-efficacy as hypothesized. Self-efficacy did not mediate nutrition knowledge or dietary adherence. ANCOVA controlling for baseline LDL cholesterol revealed significantly improved LDL cholesterol in the self-efficacy group (p = .04). Website use also differed significantly between groups with the self-efficacy group logging on an average of 119 times compared to 19 times for the education group (p < .000). The small sample size and healthy baseline habits of the sample possibly affected study results. LDL cholesterol decreased in the self-efficacy group while increasing in the education group. Both groups had high baseline self-efficacy and nutrition knowledge that remained stable. Improvements in dietary adherence to a cholesterol-lowering diet were noted for both groups. In summary, the self-efficacy enhancing Internet dietary change intervention did not produce the hypothesized results. The Internet intervention was readily used by participants, especially by the group who received self-efficacy support. Further study of behavioral change interventions using the Internet is recommended.
This dissertation has also been disseminated through the ProQuest Dissertations and Theses database. Dissertation/thesis number: 3191078; ProQuest document ID: 305384963. The author still retains copyright.
This item has not gone through this repository's peer-review process, but has been accepted by the indicated university or college in partial fulfillment of the requirements for the specified degree.
Type | Dissertation |
Acquisition | Proxy-submission |
Review Type | None: Degree-based Submission |
Format | Text-based Document |
Evidence Level | Randomized Controlled Trial |
Research Approach | Pilot/Exploratory Study |
Keywords | Heart Disease; High Cholesterol; Patient Education |
CINAHL Subject(s) | Cholesterol, Dietary; Diet; Self Care |
Grantor | Rutgers, The State University of New Jersey |
Advisor | Lev, Elise L. |
Level | PhD |
Year | 2005 |
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