PMID- 26203790
OWN - NLM
STAT- MEDLINE
DCOM- 20160719
LR  - 20191210
IS  - 1931-3543 (Electronic)
IS  - 0012-3692 (Linking)
VI  - 149
IP  - 3
DP  - 2016 Mar
TI  - Interpretability of Change Scores in Measures of Balance in People With COPD.
PG  - 696-703
LID - S0012-3692(15)00099-9 [pii]
LID - 10.1378/chest.15-0717 [doi]
AB  - BACKGROUND: Balance deficits and an increased fall risk are well documented in 
      individuals with COPD. Despite evidence that balance training programs can 
      improve performance on clinical balance tests, their minimal clinically important 
      difference (MCID) is unknown. The aim of this study was to determine the MCID of 
      the Berg Balance Scale (BBS), Balance Evaluation Systems Test (BESTest), and 
      Activities-Specific Balance Confidence (ABC) scale in patients with COPD 
      undergoing pulmonary rehabilitation. METHODS: We performed a secondary analysis 
      of data from two studies of balance training in COPD (n = 55). The MCID for each 
      balance measure was estimated using the following anchor and distribution-based 
      approaches: (1) mean change scores on a patient-reported global change in balance 
      scale, (2) optimal cut-point from receiver operating characteristic curves 
      (ROCs), and (3) the minimal detectable change with 95% confidence (MDC95). 
      RESULTS: Data from 55 patients with COPD (mean age, 71.2 +/- 7.1 y; mean FEV1, 39.2 
      +/- 15.8% predicted) were used in the analysis. The smallest estimate of MCID was 
      from the ROC method. Anchor-based estimates of the MCID ranged from 3.5 to 7.1 
      for the BBS, 10.2 to 17.4 for the BESTest, and 14.2 to 18.5 for the ABC scale; 
      their MDC95 values were 5.0, 13.1, and 18.9, respectively. CONCLUSIONS: Among 
      patients with COPD undergoing pulmonary rehabilitation, a change of 5 to 7 points 
      for the BBS, 13 to 17 points for the BESTest, and 19 points for the ABC scale is 
      required to be both perceptible to patients and beyond measurement error.
CI  - Copyright (c) 2016 American College of Chest Physicians. Published by Elsevier Inc. 
      All rights reserved.
FAU - Beauchamp, Marla K
AU  - Beauchamp MK
AD  - Department of Physical Medicine and Rehabilitation, Harvard Medical School, 
      Spaulding Rehabilitation Hospital, Cambridge, MA; Department of Respiratory 
      Medicine, West Park Healthcare Centre, Toronto, ON, Canada. Electronic address: 
      beaucm1@mcmaster.ca.
FAU - Harrison, Samantha L
AU  - Harrison SL
AD  - Department of Respiratory Medicine, West Park Healthcare Centre, Toronto, ON, 
      Canada.
FAU - Goldstein, Roger S
AU  - Goldstein RS
AD  - Department of Respiratory Medicine, West Park Healthcare Centre, Toronto, ON, 
      Canada; Department of Medicine, University of Toronto, Toronto, ON, Canada.
FAU - Brooks, Dina
AU  - Brooks D
AD  - Department of Respiratory Medicine, West Park Healthcare Centre, Toronto, ON, 
      Canada; Department of Physical Therapy, University of Toronto, Toronto, ON, 
      Canada.
LA  - eng
GR  - Canadian Institutes of Health Research/Canada
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20160112
PL  - United States
TA  - Chest
JT  - Chest
JID - 0231335
SB  - IM
MH  - Accidental Falls
MH  - Aged
MH  - Area Under Curve
MH  - Female
MH  - Forced Expiratory Volume
MH  - Humans
MH  - Male
MH  - Middle Aged
MH  - Outcome Assessment, Health Care
MH  - Physical Therapy Modalities
MH  - Postural Balance/*physiology
MH  - Pulmonary Disease, Chronic Obstructive/*physiopathology/rehabilitation
MH  - ROC Curve
MH  - Respiratory Therapy
OTO - NOTNLM
OT  - COPD
OT  - exercise
OT  - minimal clinically important difference
OT  - outcome measures
OT  - physical therapy
OT  - pulmonary rehabilitation
OT  - responsiveness
EDAT- 2015/07/24 06:00
MHDA- 2016/07/20 06:00
CRDT- 2015/07/24 06:00
PHST- 2015/03/30 00:00 [received]
PHST- 2015/06/03 00:00 [revised]
PHST- 2015/07/01 00:00 [accepted]
PHST- 2015/07/24 06:00 [entrez]
PHST- 2015/07/24 06:00 [pubmed]
PHST- 2016/07/20 06:00 [medline]
AID - S0012-3692(15)00099-9 [pii]
AID - 10.1378/chest.15-0717 [doi]
PST - ppublish
SO  - Chest. 2016 Mar;149(3):696-703. doi: 10.1378/chest.15-0717. Epub 2016 Jan 12.