Title
Reproducibility and validity of the Dutch translation of the de Morton Mobility Index (DEMMI) used by physiotherapists in older patients with knee or Hip osteoarthritis
Author
Jans, M.P.
Slootweg, V.C.
Boot, C.R.
de Morton, N.A.
van der Sluis, G.
van Meeteren, N.L.
Publication year
2011
Abstract
Objective: To examine the reproducibility, construct validity, and unidimensionality of the Dutch translation of the de Morton Mobility Index (DEMMI), a performance-based measure of mobility for older patients. Design: Cross-sectional study. Setting: Rehabilitation center (reproducibility study) and hospital (validity study). Participants: Patients (N=28; age >65y) after orthopedic surgery (reproducibility study) and patients (N=219; age >65y) waiting for total hip or total knee arthroplasty (validity study). Intervention: Not applicable. Main Outcome Measures: Not applicable. Results: The intraclass correlation coefficient for interrater reliability was high (.85; 95% confidence interval, 71.93), and minimal detectable change with 90% confidence was 7 on the 100-point DEMMI scale. Rasch analysis identified that the Dutch translation of the DEMMI is a unidimensional measure of mobility in this population. DEMMI scores showed high correlations with scores on other performance-based measures of mobility (Timed Up and Go test, Spearman r=-.73; Chair Rise Time, r=-.69; walking test, r=.74). A lower correlation of.44 was identified with the self-report measure Western Ontario and McMaster Universities Osteoarthritis Index. Conclusions: The Dutch translation of the DEMMI is a reproducible and valid performance-based measure for assessing mobility in older patients with knee or hip osteoarthritis. © 2011 American Congress of Rehabilitation Medicine.
Subject
Healthy Living
HL - Healthy for Life
Themalijn
Health
Activities of daily living
Aged
Geriatric assessment
Mobility limitation
Rehabilitation
Reproducibility of results
aged
article
clinical article
clinical practice
construct validity
cross-sectional study
de Morton mobility index
female
hip osteoarthritis
human
interrater reliability
knee osteoarthritis
male
orthopedic surgery
patient mobility
performance
physiotherapist
rating scale
reproducibility
self report
total hip prosthesis
total knee replacement
To reference this document use:
http://resolver.tudelft.nl/uuid:fb853d00-a772-44b9-99f4-f68bf00dce19
DOI
https://doi.org/10.1016/j.apmr.2011.05.011
TNO identifier
442980
ISSN
0003-9993
Source
Archives of Physical Medicine and Rehabilitation, 92 (11), 1892-1899
Document type
article