Relationship between Uncertainty and Health-related Quality of Life in Patients with Implantable Cardioverter-Defibrillators: Mediating Effect of Self-care Competence

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Purpose: This descriptive survey examined the mediating effect of self-care competence on the relationship between uncertainty and health-related quality of life (HRQoL) in patients with implantable cardioverter-defibrillators (ICDs). Methods: Data were collected from 108 patients with ICDs who were receiving outpatient treatment at a tertiary hospital in J, Korea. Data were analyzed using SPSS/WIN 25.0 with descriptive statistics, the independent t-test, one-way analysis of variance, Pearson's correlation coefficient, and Hayes' PROCESS macro Model 4 with 95% bias-corrected bootstrap confidence intervals. Results: Uncertainty had a significant negative effect on physical HRQoL (β=-9.74, p=.014), whereas self-care competence had a significant positive effect on physical HRQoL (β =5.46, p=.004); the model explained 46% of the variance. The indirect effect of uncertainty on physical HRQoL through self-care competence was significant (indirect effect=-3.26, 95% bootstrap CI: -8.81 to -0.16). Uncertainty also had a significant negative effect on mental HRQoL (β=-15.17, p<.001), whereas self-care competence had a significant positive effect on mental HRQoL (β=5.80, p=.004); the model explained 39% of the variance. The indirect effect of uncertainty on mental HRQoL through self-care competence was significant (indirect effect=-4.52, 95% bootstrap CI: -10.08 to -0.14). Conclusion: Nursing interventions that strengthen self-care competence for continuous self-management are needed to reduce uncertainty and improve quality of life in patients with ICDs.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.