Comparison of two approaches to measuring change in health status in rheumatoid arthritis: the Health Assessment Questionnaire (HAQ) and modified HAQ.
As an alternative to the calculation of change scores for health status questionnaires used in clinical trials or longitudinal studies, transitional questions have been developed for patients to assess changes directly themselves. Here the original Health Assessment Questionnaire (HAQ) is compared with a modified version of the HAQ (MHAQ) which contains transition questions used at follow up. These, together with a set of standard rheumatological tests, were all completed by 100 patients with...Expand abstract
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