The Relationship between Cardiac Functional Capacity and Patients' Symptom-specific Utilities for Angina

Graham Nichol, Hilary A. Llewellyn-Thomas, Elaine C. Thiel and C. David Naylor

Medical Decision Making, 1996, vol. 16, issue 1, 78-85

Abstract: Forty-one angina patients with coronary disease were interviewed to examine the correlation between prespecified and individualized weights for disease-specific measures of the effects of angina on the patients' well-being. Modifications of the Canadian Cardiovascular Society (CCS) scale for angina and the Duke Activity Specific Index (DASI) were used to rate functional capacity with prespecified items. Disease-specific utilities based on descriptions of functional status were obtained directly, and again indirectly with different anchoring conditions to control for noncardiac comorbidity. Correlations between the functional-capacity measures and the derived utilities were not strong, ranging from -0 25 (p > 0.1) to -0.35 (p = 0.02). Correlation between the two prespecified measures was higher (r = -0.51 or -0.69, both p

Date: 1996
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Persistent link: https://EconPapers.repec.org/RePEc:sae:medema:v:16:y:1996:i:1:p:78-85

DOI: 10.1177/0272989X9601600116

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