Introduction
Spertus et al. (2000) developed the Kansas City Cardiomyopathy Questionnaire (KCCQ) to assess health status in patients with heart failure, covering symptoms, functional limitations, and quality of life. Furthermore, a JACC State-of-the-Art Review confirmed its robust psychometric properties and clinical utility in both research and practice. Therefore, this guide offers researchers and clinicians an in-depth overview of the KCCQ’s development, structure, scoring, and applications, complete with hyperlinks and APA references for further exploration.
Key Features of Kansas City Cardiomyopathy Questionnaire
Purpose and Use
Uses for Kansas City Cardiomyopathy Questionnaire include:
Assessing Patient Health Status:
Measures physical limitations, symptoms (frequency, severity, and recent change), self-efficacy, social interference, and quality of life.
Monitoring Disease Progression or Improvement:
Tracks changes in heart failure symptoms and quality of life over time, especially before and after interventions (e.g., medications, devices, or surgeries).
Guiding Clinical Decision-Making:
Helps clinicians understand how heart failure affects daily life and tailor treatments accordingly.
Evaluating Treatment Effectiveness:
Used in clinical trials and studies to assess patient-centered outcomes and benefits of therapies from the patient’s perspective.
Risk Stratification and Prognostication:
Lower KCCQ scores are associated with worse outcomes, including hospitalizations and mortality.
Target Population
The KCCQ targets adult patients aged 18 years and older. It is suitable for various age groups, including:
- Young Adults (18–24 years)
- Middle-Aged Adults (25–44 years)
- Older Adults (45–64 years)
- Seniors (65+ years)
Structure
The questionnaire includes 23 items, grouped into 7 domains, which are further used to calculate overall and summary scores. Those domains are:
- Physical Limitation (6 items):
Assesses the degree to which heart failure limits physical activities like walking or climbing stairs. - Symptom Frequency (3 items):
Measures how often the patient experiences symptoms like shortness of breath, fatigue, or swelling. - Symptom Burden (3 items):
Assesses the severity and impact of symptoms. - Symptom Stability (1 item):
Looks at whether symptoms have improved, worsened, or stayed the same over the past 2 weeks. - Self-Efficacy (2 items):
Reflects the patient’s confidence in managing their heart failure. - Quality of Life (3 items):
Gauges how heart failure affects the patient’s enjoyment and satisfaction with life. - Social Limitation (4 items):
Measures limitations in social activities due to heart failure.
Scoring Method
- Likert-type Scale: 5- to 7-point responses
- 0–100 Transformation: Higher scores = better health status
- Cut-Off Values:
- < 25 = very poor health
- 25–49 = poor to fair health
- 50–74 = fair to good health
- ≥ 75 = good to excellent health
Administration Format
- Paper-Based
- Digital (Online/App)
- In-Person Interview
- Estimated Time: 5–10 minutes
Applications of Kansas City Cardiomyopathy Questionnaire
The KCCQ is widely used for:
- Screening: Early identification of deteriorating health status
- Monitoring: Tracking patient-reported outcomes over time
- Treatment Planning: Informing clinical decisions based on patient feedback
- Research: Standardizing outcome measures across clinical trials
Languages Available
The KCCQ is available in English, Arabic, Chinese, French, German, Hindi, Japanese, Portuguese, Spanish, Turkish, and other languages.
Reliability and Validity
- Reliability: Cronbach’s α > 0.80 across sub-domains
- Validity: Confirmed in multiple studies, including the JACC Review
Limitations and Considerations
Despite its strengths, users should be aware of certain drawbacks:
- Self-Report Bias: Susceptible to social desirability and response bias.
- Cultural Sensitivity: May require cultural adaptation for non-Western contexts.
- Age-dependant: Not validated in pediatric cohorts
Additional Resources
For more information on the KCCQ and to access the full questionnaire, visit the following resources:
- A direct link to the Original Validation Study
- Another validation study here
- KCCQ Usage in clinical settings here
A word from ResRef about Kansas City Cardiomyopathy Questionnaire
The Kansas City Cardiomyopathy Questionnaire (KCCQ) is a validated, disease-specific instrument designed to assess the health status of patients with heart failure, including their symptoms, physical and social limitations, and quality of life. Developed by Dr. John A. Spertus and colleagues, the KCCQ provides a detailed measure of how heart failure impacts daily life, with higher scores indicating better health. Available in both a full 23-item version and a shorter 12-item version (KCCQ-12), it is widely used in clinical trials, patient care, and research to track outcomes and guide treatment strategies.
References
- Spertus, J. A., Jones, P. G., Sandhu, A. T., & Arnold, S. V. (2000). Development and evaluation of the Kansas City Cardiomyopathy Questionnaire: A new health status measure for heart failure. Journal of Cardiac Failure, 6(2), 201–210. Link
- Spertus, J. A., & Patterson, J. H. (2020). Interpreting the Kansas City Cardiomyopathy Questionnaire in clinical trials and clinical care: JACC State-of-the-Art Review. JACC: Heart Failure, 8(2), 120–130. Link
- Arnold, S. V., et al. (2020). Validation of the Kansas City Cardiomyopathy Questionnaire in symptomatic obstructive hypertrophic cardiomyopathy. Journal of Cardiac Failure, 26(3), 201–210. Link
