(Stroke. 1997;28:1876-1882.)
© 1997 American Heart Association, Inc.
Articles |
Is the EuroQol a Valid Measure of Health-Related Quality of Life After Stroke?
From the Neurosciences Trials Unit, Department of Clinical Neurosciences, University of Edinburgh, Western General Hospital, Edinburgh, UK.
Correspondence to Dr Paul Dorman, Neurosciences Trials Unit, Department of Clinical Neurosciences, University of Edinburgh, Western General Hospital, Crewe Rd, Edinburgh EH4 2XU, UK. E-mail pd{at}skull.dcn.ed.ac.uk
Background and Purpose The EuroQol measures aspects of quality of life that are highly relevant to stroke patients. It is short and simple and many stroke patients can complete the form without help. However, its validity has not been adequately assessed after stroke. We therefore assessed its concurrent and discriminant validity in a group of prospectively studied stroke survivors.
Methods We assessed the validity of the EuroQol in a series of 152 patients with stroke who were all visited by a study nurse. The nurse gave the patients the EuroQol, the Frenchay Activities Index, a visual analogue pain scale, and the Hospital Anxiety and Depression Scale in the form of questionnaires to be self-completed where possible. The nurse interviewed the patient directly to assess disability using the Office of Population Censuses and Surveys Disability scale and Barthel Index.
Results The nurse assessed 152 patients; of these 92 were able to complete the EuroQol without help, the remaining 60 could only be assessed by interview. The EuroQol had reasonable concurrent validity; median scores on the relevant standard instruments varied significantly (and in the appropriate direction) for groups defined by their response to the relevant EuroQol domain. The EuroQol had reasonable discriminant validity since the responses enabled separation between patients with differing stroke syndromes and stroke severities. Accuracy for predicting outcome after stroke was good for both self-completed and interview-completed questionnaires.
Conclusions The EuroQol appears to have acceptable concurrent and discriminant validity for the measurement of health-related quality of life after stroke. It may be administered by either a questionnaire for self-completion in patients with mild to moderate stroke or by interview in patients with significant motor deficits.
Key Words: stroke outcome • quality of life • stroke assessment
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