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de Morton Mobility Index (DEMMI)
This instrument is freely available: de Morton Mobility Index
Exploratory: Unruptured Cerebral Aneurysms and Subarachnoid Hemorrhage (SAH)
Short Description of Instrument

The DEMMI was designed in order to measure changes in mobility of the hospitalized elderly population across different settings from the acute to chronic range and from clinical to community.

Comments/Special Instructions
Psychometrics: good reliability, validity and low floor/ceiling effect
Comprised of 15 hierarchical mobility items:
? 3 bed
? 3 chair
? 4 balance
? 2 walking
? 3 dynamic balance

Each item is scored on a scale from 0 (unable) to 2 (independent) and summed for a raw score, which is converted to a DEMMI score using a conversion table.

de Morton NA, Davidson M, Keating JL. The de Morton Mobility Index (DEMMI): an essential health index for an ageing world. Health Qual Life Outcomes. 2008;6:63.
Sommers J, Vredeveld T, Lindeboom R, Nollet F, Engelbert RH, van der Schaaf M. de Morton Mobility Index Is Feasible, Reliable, and Valid in Patients With Critical Illness. Phys Ther. 2016;96(10):1658-1666.


Document last updated February 2018