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Health-related quality of life assessment may be useful for understanding the variability in functioning of patients with a similar level of clinical impairment. We assessed the reliability, validity and responsiveness to clinical change of a reduced version of the Duke Activity Status Index (DASI) in chronic coronary patients.

european heart journal

Measuring functional status of chronic coronary patients: Reliability, validity and responsiveness to clinical change of the reduced version of the Duke Activity Status Index (DASI)