期刊
DISABILITY AND REHABILITATION
卷 35, 期 4, 页码 325-333出版社
TAYLOR & FRANCIS LTD
DOI: 10.3109/09638288.2012.705220
关键词
Hip fractures; mobility limitation; outcome assessment (health care)
资金
- National Health and Medical Research Council of Australia (NHMRC) [519555]
- Physiotherapy Departments at Peter James Centre
- Wantirna Health, Eastern Health, Victoria, Australia
Purpose: Many patients suffer long term loss of mobility after hip fracture but there is no gold standard method for measuring mobility in this group. We aimed to validate a new mobility outcome measure, the de Morton Mobility Index (DEMMI) in a hip fracture population during inpatient rehabilitation. Method: The DEMMI was compared with the existing measures of activity limitation: 6 minute walk test, 6 metre walk test and Barthel Index on 109 consecutive patients admitted to rehabilitation after surgery for hip fracture. Patients were assessed by a physiotherapist at admission and discharge. Scale width, validity, minimal clinically important difference (MCID), responsiveness, and unidimensionality were investigated. Results: Evidence of convergent, discriminant and known groups validity were obtained for the DEMMI. Responsiveness was similar across instruments and the MCIDs were consistent with previous reports. A floor effect was identified for the 6 metre walk test and 6 minute walk test at hospital admission. Rasch analysis identified that the DEMMI maintains its unidimensional properties in this population. Conclusions: The DEMMI has a broader scale width than existing measures of activity limitation and provides a unidimensional measure of mobility for hip fracture patients during inpatient rehabilitation.
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