RNSurveyInternational journal of nursing practice2025

Validity and Reliability of the Korean Version of the Self-Care Self-Efficacy Scale for Patients With Heart Failure: A Psychometric Evaluation.

JinShil Kim, Minjeong An

PMID 40887066

WHAT IT FOUND

In 159 Korean patients with heart failure, a 10-item self-care confidence scale produced consistent scores and related to symptoms and physical function as expected.

Scores averaged 36.24 on a 0 to 100 scale and were lower in NYHA classes III/IV.

Key findings

01The Korean 10-item scale supported a single self-care confidence measure, with all item loadings above 0.50 and internal consistency of 0.913.

02Higher symptom status was associated with lower confidence (r = -0.331), and better physical function was associated with higher confidence (r = 0.299).

03The mean overall scale score was 36.24, and patients in NYHA Classes I/II had a mean score of 37.10, compared with 30.83 in Class III and 31.17 in Class IV.

STILL TO COME

How it was doneWhat they foundWhat it means for RNs

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What it does not show

Most participants were in NYHA Class I (14.2%) or II (70.3%), so results may not apply to more severely symptomatic patients. The study did not check whether scores stay stable over time because it collected data only once. The sample was 159, while the authors note 175 participants would be needed for confirmatory factor analysis power 0.81. It tested only a Korean version in Korean hospital patients, so transfer to other languages or settings is not shown.

The easy way to misread this

Do not conclude that using the scale improves heart failure self-care. This was a cross-sectional validation in 159 patients, 84.5% in NYHA Classes I/II, and it did not test an intervention.

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