Heart failure family caregivers: Psychometrics of a new quality of life scale and variables associated with caregiver outcomes
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Julie Ann Nauser, PhD, MSN, BSN, RN, CNE
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- Upsilon Tau
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The number of patients with chronic heart failure (HF) is at an all-time high and the incidence is expected to increase as our population ages. HF patients experience impaired cognition, exertional shortness of breath, and persistent fatigue; therefore, family members are needed to assist with their care at home. Although existing literature suggests that HF caregivers experience negative physical, mental, and social outcomes, there is a lack of studies guided by a conceptual model to determine factors associated with these outcomes. The purpose of this study was to determine factors associated with HF caregiver depressive symptoms, life changes, and quality of life guided by a conceptual model derived from Lazarus and colleagues’ transactional approach to stress. Psychometric properties of a new HF caregiver-specific quality of life (HFCQL) scale were also determined. Using a descriptive design, a convenience sample of 100 HF caregivers was interviewed by telephone using established measures along with the new HFCQL scale. The 16-item HFCQL scale, which measures physical, psychological, social, and spiritual well-being demonstrated evidence of internal consistency reliability (α = .89); 2-week test-retest reliability (ICC = .83); construct validity, as evaluated with factor analysis (loadings > .32) and hierarchical multiple regression (59% variance, p < .001); and criterion validity, as shown with significant (p < .001) correlations with the Bakas Caregiving Outcomes Scale (r = .73), SF-36 general and mental health (r = .45; .59), and a single overall QOL item (r = .71). Using hierarchical multiple regression, themodel constructs accounted for 35% variance of depressive symptoms, 46% variance of life changes, and 59% variance of HFCQL (p < .001). Factors significantly associated with these outcomes included caregiving task difficulty, uncertainty, social support, and threat appraisal. Support for the conceptual model was provided, and potential areas for intervention development were identified. The new HFCQL scale showed potential as a quality outcome measure in HF caregivers, and might be used to screen HF caregivers for poor quality of life. Further research using the proposed conceptual model and the HFCQL scale is warranted.
This dissertation has also been disseminated through the ProQuest Dissertations and Theses database. Dissertation/thesis number: 3283966; ProQuest document ID: 304857099. 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 | Descriptive/Correlational |
Research Approach | Qualitative Research |
Keywords | Heart Failure; Family Caregivers; Quality of Life; Depressive Symptoms |
Grantor | Indiana University |
Advisor | Bakas, Tamilyn; Sims, Sharon; Fisher, Mary L.; Welch, Janet |
Level | PhD |
Year | 2007 |
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