Development and a Psychometric Evaluation of Cardiovascular Disease-Specific Quality of Life Scale for Koreans.
10.4040/jkan.2007.37.3.313
- Author:
Eun Hyun LEE
1
;
Seong Jai TAHK
;
Jun Han SHIN
;
Young Whee LEE
;
Rhayun SONG
Author Information
1. Graduate School of Public Health, Ajou University, Korea. ehlee@ajou.ac.kr
- Publication Type:Original Article ; English Abstract ; Research Support, Non-U.S. Gov't ; Validation Studies
- Keywords:
Health related quality of life;
Cardiovascular disease;
Reliability;
Validity
- MeSH:
Adult;
Aged;
Cardiovascular Diseases/nursing/*psychology;
Factor Analysis, Statistical;
Female;
Humans;
Korea;
Male;
Middle Aged;
Multivariate Analysis;
Program Evaluation;
Psychometrics;
*Quality of Life;
*Questionnaires
- From:
Journal of Korean Academy of Nursing
2007;37(3):313-323
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
PURPOSE: Health-related quality of life (HRQOL) in patients with cardiovascular disease in Korea has rarely been studied, mostly due to the lack of a psychometrically validated disease-specific instrument. The purpose of this study was to develop and validate a cardiovascular specific-HRQOL questionnaire (CD-QOL). METHOD: The CD-QOL was developed and validated as follows; item generation, pilot study, and psychometric tests. Patients were recruited from three-university hospitals. The patients were asked to complete the preliminary questionnaire comprising the content-validated items, SF-36, and CES-D. The NYHA and KASI classifications were used to classify the functional performance of the patients. The data was analyzed using correlation, factor analysis, multidimensional scaling, multitrait/multi-item matrix, ANOVA, and Cronbach's alpha. RESULT: Preliminarily, thirty-nine items were generated. Factor analysisextracted a five-factor solution with a total of twenty-two items. One item was deleted based upon the MDS. The remaining items were moderately correlated with the subscales of the SF-36 and associated with depression measured with the CES-D. The mean scores of patients in NYHA and KASI class I were significantly higher than those in NYHA and KASI class II or/and III, which suggested patients with better functional performance were likely to have a better HRQOL. Cronbach's alphas of the total and subscales were all greater than 0.70. CONCLUSION: The CD-QOL is a easily applicable instrument with excellent psychometric properties of content, criterion, factorial, convergent, and known-groups validity, and internal consistency reliability in Korean patients with cardiovascular disease.
