PMID- 21187205
OWN - NLM
STAT- MEDLINE
DCOM- 20110131
LR  - 20181201
IS  - 1532-821X (Electronic)
IS  - 0003-9993 (Linking)
VI  - 92
IP  - 1
DP  - 2011 Jan
TI  - Clinimetric properties of the de Morton Mobility Index in healthy, 
      community-dwelling older adults.
PG  - 51-8
LID - 10.1016/j.apmr.2010.08.023 [doi]
AB  - OBJECTIVE: To investigate the clinimetric properties of the de Morton Mobility 
      Index (DEMMI) in healthy, community-dwelling older adults. DESIGN: Cohort study. 
      SETTING: Retirement village and Returned and Services League (RSL) club in 
      Melbourne, Australia. PARTICIPANTS: All participants were 65 years or older, 
      healthy, and living within the community. The validation study included 
      participants recruited from a retirement village (n=61), and the reliability 
      studies included participants recruited from an RSL club and a subset of 
      participants from the retirement village. INTERVENTIONS: Not applicable. MAIN 
      OUTCOME MEASURES: Mobility was assessed using the DEMMI. The percentage of 
      participants who scored the highest and lowest possible score on the DEMMI was 
      calculated to determine whether a floor or ceiling effect occurred. The minimal 
      clinically important difference (MCID) was estimated using a distribution-based 
      method. Reliability was assessed independently and concurrently using the minimal 
      detectable change at 90% confidence (MDC(9)(0)). RESULTS: Evidence of convergent and 
      discriminant validity was obtained for the DEMMI by examining correlations with 
      measures of related constructs, the Lower Extremity Functional Scale (r=.69) and 
      Quality of Life Scale scores (r=.28), respectively. Participants who ambulated 
      without a gait aid (82.62+/-10.63) had significantly higher (P<.0) DEMMI scores 
      than those who ambulated with an aid (64.1+/-12.40), providing evidence of known 
      groups validity. No floor or ceiling effect was identified. The MCID was 7 
      points. The MDC(9)(0) was 13 (95% CI, 8.76-17.05) points on the 100-point scale. 
      CONCLUSION: DEMMI scores in healthy, community-dwelling older adults are both 
      valid and reliable.
CI  - Copyright A(c) 2011 American Congress of Rehabilitation Medicine. Published by 
      Elsevier Inc. All rights reserved.
FAU - Davenport, Sarah J
AU  - Davenport SJ
AD  - Department of Physiotherapy, Monash University, Victoria, Australia. 
      sarah.davenport@nh.org.au
FAU - de Morton, Natalie A
AU  - de Morton NA
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - United States
TA  - Arch Phys Med Rehabil
JT  - Archives of physical medicine and rehabilitation
JID - 2985158R
SB  - IM
MH  - Activities of Daily Living
MH  - Age Factors
MH  - Aged
MH  - Aged, 80 and over
MH  - Cohort Studies
MH  - Female
MH  - Frail Elderly/psychology/*statistics & numerical data
MH  - Gait
MH  - Geriatric Assessment/*methods
MH  - Humans
MH  - Independent Living/psychology/*statistics & numerical data
MH  - Lower Extremity/physiology
MH  - Male
MH  - Observer Variation
MH  - Orthopedic Equipment/statistics & numerical data
MH  - Physical Therapy Modalities
MH  - *Quality of Life
MH  - Reproducibility of Results
MH  - Sex Factors
EDAT- 2010/12/29 06:00
MHDA- 2011/02/01 06:00
CRDT- 2010/12/29 06:00
PHST- 2010/05/22 00:00 [received]
PHST- 2010/08/16 00:00 [revised]
PHST- 2010/08/25 00:00 [accepted]
PHST- 2010/12/29 06:00 [entrez]
PHST- 2010/12/29 06:00 [pubmed]
PHST- 2011/02/01 06:00 [medline]
AID - S0003-9993(10)00758-6 [pii]
AID - 10.1016/j.apmr.2010.08.023 [doi]
PST - ppublish
SO  - Arch Phys Med Rehabil. 2011 Jan;92(1):51-8. doi: 10.1016/j.apmr.2010.08.023.