Why the study?
Although nursing interventions improve heart failure outcomes, the mechanisms underlying their effects on health-related quality of life remain unclear.
Does an educational intervention improve health-related quality of life in patients with heart failure?
Comparison
Individual education plus 8 weeks of telephone follow-up vs usual care
Design
Causal mediation analysis of a randomized controlled trial
Follow-up
6 months
Key result
An educational intervention improved health-related quality of life in heart failure patients, mediated by overall self-care (indirect effect -7.18; 95% CI -13.48 to -2.35).
Authors
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Prioritize self-care in heart failure education to improve HRQOL; confirms its causal mediation in this RCT.
RCT (n=122)
Does an educational intervention improve health-related quality of life in patients with heart failure?
Effect estimate: indirect effect -7.18 (95% CI -13.48 to -2.35)
Educational interventions improve health-related quality of life in heart failure patients primarily by enhancing overall self-care and self-care maintenance.
Hwang et al. (2026) conducted an RCT in Heart failure (n=122). Educational intervention (individual education plus telephone follow-up) vs. Usual care was evaluated on Health-related quality of life at 6 months mediated by overall self-care (indirect effect -7.18, 95% CI -13.48 to -2.35). An educational intervention improved health-related quality of life in heart failure patients, mediated by overall self-care (indirect effect -7.18; 95% CI -13.48 to -2.35).