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SOCIAL SUPPORT, SELF-EFFICACY, AND GENDER
IN TREATMENT ADHERENCE OF HEART FAILURE PATIENTS
by
Uta Maeda
_____________________________________________________
A Thesis Presented to the
FACULTY OF THE USC GRADUATE SCHOOL
UNIVERSITY OF SOUTHERN CALIFORNIA
In Partial Fulfillment of the
Requirements for the Degree
MASTER OF ARTS
(PSYCHOLOGY)
August 2010
Copyright 2010 Uta Maeda
Object Description
| Title | Social support, self-efficacy, and gender in treatment adherence of heart failure patients |
| Author | Maeda, Uta |
| Author email | umaeda@usc.edu; utamaeda@gmail.com |
| Degree | Master of Arts |
| Document type | Thesis |
| Degree program | Psychology |
| School | College of Letters, Arts and Sciences |
| Date defended/completed | 2010-05-05 |
| Date submitted | 2010 |
| Restricted until | Unrestricted |
| Date published | 2010-06-14 |
| Advisor (committee chair) | Shen, Biing-Jiun |
| Advisor (committee member) |
Meyerowitz, Beth Baker, Laura |
| Abstract | Nonadherence to medical recommendations is a leading preventable cause of rehospitalization and premature mortality in chronic heart failure (HF) patients. This study examined the contribution of functional and structural social support to general and specific adherence, and whether self-efficacy and gender mediated and moderated these relationships, respectively. Participants consisted of 252 HF patients (31% women) with a mean age of 54 years. All analyses controlled for age, gender, marital status, education, ethnicity, New York Heart Association (NYHA) class, and comorbidity. Structural support was significantly associated with both general (β=.156, p<.05) and specific adherence (β=.165, p<.05). Similarly, functional support was significantly associated with both general (β=.275, p<.001) and specific (β=.274, p<.001) adherence. The tangible, emotional/informational, affectionate, and positive social interaction subtypes of functional support were highly intercorrelated (Pearson’s r=.77 - .88, ps <.001) and not differentially associated with adherence. Self-efficacy significantly mediated the effects of structural support on general (Sobel Z = 2.71, p=.007) and specific adherence (Sobel Z = 3.09, p=.002), as well as the effects of functional support on general (Sobel Z = 3.13, p=.002) and specific adherence (Sobel Z = 4.18, p=.000). Gender did not appear to moderate any of these relationships (ps>.05). These results suggest that both the quality and quantity of social support are important predictors of both global and domain-specific adherence, and that this positive influence occurs indirectly via self-efficacy. Implications and future directions for HF interventions are discussed. |
| Keyword | heart failure; adherence; social support; self-efficacy; gender |
| Geographic subject (city or populated place) | Miami; Los Angeles |
| Geographic subject (state) | Florida; California |
| Language | English |
| Part of collection | University of Southern California dissertations and theses |
| Publisher (of the original version) | University of Southern California |
| Place of publication (of the original version) | Los Angeles, California |
| Publisher (of the digital version) | University of Southern California. Libraries |
| Provenance | Electronically uploaded by the author |
| Type | texts |
| Legacy record ID | usctheses-m3131 |
| Rights | Maeda, Uta |
| Repository name | Libraries, University of Southern California |
| Repository address | Los Angeles, California |
| Repository email | http://www.usc.edu/isd/libraries/services/ask_a_librarian/email/ |
| Filename | etd-Maeda-3781 |
| Archival file | uscthesesreloadpub_Volume48/etd-Maeda-3781.pdf |
Description
| Title | Page 1 |
| Full text | SOCIAL SUPPORT, SELF-EFFICACY, AND GENDER IN TREATMENT ADHERENCE OF HEART FAILURE PATIENTS by Uta Maeda _____________________________________________________ A Thesis Presented to the FACULTY OF THE USC GRADUATE SCHOOL UNIVERSITY OF SOUTHERN CALIFORNIA In Partial Fulfillment of the Requirements for the Degree MASTER OF ARTS (PSYCHOLOGY) August 2010 Copyright 2010 Uta Maeda |
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