The Swedish version of the KCCQ demonstrated acceptable validity and reliability, with Cronbach's alpha ≥0.70 for most scales, and was more responsive to clinical change than the SF-36.
Observational (n=118)
Is the Swedish version of the KCCQ a valid, reliable, and responsive instrument for assessing health-related quality of life in patients with chronic heart failure?
The Swedish version of the KCCQ is a valid, reliable, and responsive tool for measuring health-related quality of life in patients with chronic heart failure.
BACKGROUND: Valid assessments of health-related Quality of Life (HRQL) are increasingly important in chronic, incurable conditions, such as chronic heart failure (CHF). AIMS: To evaluate the psychometric properties of a Swedish version of the Kansas City Cardiomyopathy Questionnaire (KCCQ) in hospitalized patients with decompensated CHF. METHOD AND RESULTS: The KCCQ and SF-36 were administered to patients (n=118) with CHF at baseline and then 1 (n=51) and 4 months (n=83) after admission. The Swedish version of the KCCQ appears to have acceptable convergent and discriminant validity for all suggested health domains. Cronbach's alpha and test-retest reliability met for most of the scales the minimum of 0.70. Known-groups comparison indicated that the KCCQ discriminated between patients differing in the New York Heart Association (NYHA) classification (criterion validity). The KCCQ was also more responsive to changes in the NYHA classification as compared with the SF-36. However, KCCQ has some weakness in the response distributions for two questions and the convergent validity in one question. CONCLUSION: Overall, the KCCQ is a valid and reliable instrument in a Swedish CHF population. It yields reliable and valid scores and is quite responsive to clinical change.
Patel et al. (2007) conducted an observational in Chronic heart failure (n=118). Swedish version of the Kansas City Cardiomyopathy Questionnaire (KCCQ) vs. SF-36 was evaluated on Psychometric properties (validity, reliability, responsiveness). The Swedish version of the KCCQ demonstrated acceptable validity and reliability, with Cronbach's alpha ≥0.70 for most scales, and was more responsive to clinical change than the SF-36.