PMID- 22897700 OWN - NLM STAT- MEDLINE DCOM- 20130403 LR - 20191210 IS - 1464-5165 (Electronic) IS - 0963-8288 (Linking) VI - 35 IP - 4 DP - 2013 Feb TI - Validity of the de Morton Mobility Index (DEMMI) for measuring the mobility of patients with hip fracture during rehabilitation. PG - 325-33 LID - 10.3109/09638288.2012.705220 [doi] AB - 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. FAU - de Morton, Natalie A AU - de Morton NA AD - La Trobe University, Musculoskeletal Research Centre and School of Physiotherapy, Bundoora, Australia. FAU - Harding, Katherine E AU - Harding KE FAU - Taylor, Nicholas F AU - Taylor NF FAU - Harrison, Glenys AU - Harrison G LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20120816 PL - England TA - Disabil Rehabil JT - Disability and rehabilitation JID - 9207179 SB - IM MH - *Activities of Daily Living MH - Adult MH - Aged MH - Exercise Test MH - Female MH - Geriatric Assessment MH - Hip Fractures/*rehabilitation MH - Hospitalization MH - Humans MH - Male MH - Middle Aged MH - *Mobility Limitation MH - Outcome Assessment, Health Care/*methods MH - Psychometrics MH - Psychomotor Performance/physiology MH - Reproducibility of Results MH - Walking/physiology EDAT- 2012/08/18 06:00 MHDA- 2013/04/04 06:00 CRDT- 2012/08/18 06:00 PHST- 2012/08/18 06:00 [entrez] PHST- 2012/08/18 06:00 [pubmed] PHST- 2013/04/04 06:00 [medline] AID - 10.3109/09638288.2012.705220 [doi] PST - ppublish SO - Disabil Rehabil. 2013 Feb;35(4):325-33. doi: 10.3109/09638288.2012.705220. Epub 2012 Aug 16.