The assessment of function using the Iowa Level of Assistance Scale was shown to be highly reliable, valid, and responsive in patients following total hip or knee replacements.
The DHI and the SF-36 provide reliable and responsive measurements, but they appear to provide different information about the health status of patients with vestibular disease. Compared with the general population, patients with vestibular disease had lower scores for health-related quality of life, but these scores improved after 6 to 8 weeks of treatment. Future studies should clarify whether this improved health status is due to vestibular rehabilitation.
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