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Table 5 Internal consistency of the domains and summary scores of the KCCQ

From: Psychometric properties of the Japanese version of the Kansas City Cardiomyopathy Questionnaire in Japanese patients with chronic heart failure

KCCQ

Cronbach’s standardized α

Domains

 Physical limitations

0.88

 Symptom frequency

0.83

 Symptom severity

0.74

 Self-efficacy

0.74

 Social limitations

0.77

 Quality of life

0.75

Summary scores

 Total symptom score

0.90

 Clinical summary score

0.90

 Overall summary score

0.90

  1. KCCQ Kansas City Cardiomyopathy Questionnaire
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Health and Quality of Life Outcomes

ISSN: 1477-7525

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