title: The Daily Activity Questionnaire: a novel questionnaire to assess patient activity after total hip arthroplasty.
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.
authors.affiliation: Department of Orthopaedic Surgery, University of Würzburg, König-Ludwig-Haus, Würzburg, Germany.
authors.forename: Nicole
authors.initials: N
authors.lastname: Wollmerstedt
authors.forename: Uli
authors.initials: U
authors.lastname: Nöth
authors.forename: Akif
authors.initials: A
authors.lastname: Ince
authors.forename: Hanns
authors.initials: H
authors.lastname: Ackermann
authors.forename: John M
authors.initials: JM
authors.lastname: Martell
authors.forename: Christian
authors.initials: C
authors.lastname: Hendrich
mesh_terms: D000203:Activities of Daily Living; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000465:Algorithms; D019644:Arthroplasty, Replacement, Hip; D004185:Disability Evaluation; D005260:Female; D006306:Health Surveys; D006622:Hip Prosthesis; D006801:Humans; D016014:Linear Models; D008297:Male; D008875:Middle Aged; D015207:Osteoarthritis, Hip / Q000601:surgery*; D017063:Outcome Assessment, Health Care; D015203:Reproducibility of Results; D016896:Treatment Outcome; D016138:Walking