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Published on: September 30, 2020
The Daily Activity Questionnaire: a novel questionnaire to assess patient activity after total hip arthroplasty
Nicole Wollmerstedt1, Uli Nöth, Akif Ince
1Department of Orthopaedic Surgery, University of Würzburg, König-Ludwig-Haus, Würzburg, Germany.
Abstract:
Expensive electronic accelerometers are the only validated method to determine patient activity levels. The aim of this study was to develop a clinical questionnaire to assess patient activity. The Daily Activity Questionnaire (DAQ) was developed and evaluated using 3 groups of patients with osteoarthritis of the hip. A total of 160 patients underwent 855 days of monitoring. Practicability, reliability, and validity of the new questionnaire were assessed. The test-retest reliability of the DAQ was comparable to the electronic accelerometer StepWatch (ICC = 0.77-0.89). A significant correlation between the DAQ and the StepWatch was found (r = 0.742). The DAQ is a reliable and valid instrument to measure patient activity.
