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Health and Quality of Life Outcomes
Published in: Health and Quality of Life Outcomes 1/2017

Open Access 01-01-2017 | Research

Reliability and validity of the Korean version of the coronary revascularization outcome questionnaire

Authors: Minju Kim, JiYeong Seo, Jin-Yong Hwang, Ki Soo Park

Published in: Health and Quality of Life Outcomes | Issue 1/2017

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Abstract

Background

People with ischemic heart disease have increased drastically, and their health-related quality of life (HRQOL) has been increasingly important. The Coronary Revascularization Outcome Questionnaire (CROQ) is a widely used tool to assess the quality of life in patients with coronary artery disease. The purpose of this study was to rigorously examine the psychometric properties of the CROQ in patients who had undergone percutaneous coronary intervention (PCI).

Methods

The CROQ was translated into Korean. A total of 209 patients before PCI and 169 patients after PCI were recruited from a university hospital in Korea and completed questionnaires. In terms of statistical analyses, internal consistency, concurrent validity with using the Short Form 12 (SF-12) and Seattle Angina Questionnaire-Korean version (SAQ-K), and construct validity using exploratory factor analysis were assessed. Effective size statistics were calculated.

Results

The internal consistency coefficients for all subscales of the CROQ were above 0.70, except the domain of adverse effects. The concurrent validity was mostly supported by the pattern of association among CROQ-K, SAQ-K, and SF-12. The results of EFA showed the core items of the CROQ had 7 factors. Large effect sizes were observed for the symptoms and the psychosocial functioning scales.

Conclusions

The Korean version of the CROQ is a valid and reliable scale for assessing HRQOL in patients with coronary artery disease.
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Metadata
Title
Reliability and validity of the Korean version of the coronary revascularization outcome questionnaire
Authors
Minju Kim
JiYeong Seo
Jin-Yong Hwang
Ki Soo Park
Publication date
01-01-2017
Publisher
BioMed Central
Published in
Health and Quality of Life Outcomes / Issue 1/2017
Electronic ISSN: 1477-7525
DOI
https://doi.org/10.1186/s12955-017-0615-y

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