The disease-specific Chronic Heart Failure Questionnaire (CHQ) demonstrated significantly better psychometric properties, including fewer floor and ceiling effects, than the generic SF-36.
Cross-Sectional (n=670)
No
Does a disease-specific health status measure (CHQ) have better psychometric properties than a generic measure (SF-36) in outpatients with CAD and/or CHF?
The disease-specific Chronic Heart Failure Questionnaire (CHQ) demonstrates superior psychometric properties compared to the generic SF-36 in outpatients with CAD and/or CHF.
The objectives of this study were to evaluate and compare the psychometric properties of a generic health status measure, the Medical Outcomes Study SF-36, and a disease-specific health status measure, a modified version of the Chronic Heart Failure Questionnaire (CHQ), among outpatients known to have coronary artery disease (CAD) and/or congestive heart failure (CHF). A cross-sectional analysis of baseline data obtained from 670 outpatients participating in a randomized controlled clinical trial in the general medicine clinics of a major academic medical center was performed. The SF-36 was more comprehensive in its coverage of different health status domains. In contrast, the CHQ had fewer problems with floor and ceiling effects, was more internally consistent, had better dimensional reproducibility, and exhibited less factorial complexity. Although both instruments are appropriate for use among outpatients known to have CAD and/or CHF the CHQ has significantly better psychometric properties than does the SF-36.
Wolinsky et al. (Mon,) conducted a cross-sectional in Coronary artery disease (CAD) and/or congestive heart failure (CHF) (n=670). Chronic Heart Failure Questionnaire (CHQ) vs. Medical Outcomes Study SF-36 was evaluated on Psychometric properties (floor and ceiling effects, internal consistency, dimensional reproducibility, factorial complexity). The disease-specific Chronic Heart Failure Questionnaire (CHQ) demonstrated significantly better psychometric properties, including fewer floor and ceiling effects, than the generic SF-36.