PMID- 23523434
OWN - NLM
STAT- MEDLINE
DCOM- 20140320
LR  - 20191210
IS  - 1878-1632 (Electronic)
IS  - 1529-9430 (Linking)
VI  - 13
IP  - 8
DP  - 2013 Aug
TI  - Validation of a consensus-based minimal clinically important difference (MCID) 
      threshold using an objective functional external anchor.
PG  - 889-93
LID - S1529-9430(13)00172-1 [pii]
LID - 10.1016/j.spinee.2013.02.015 [doi]
AB  - BACKGROUND CONTEXT: The minimal clinically important difference (MCID) is defined 
      as the smallest change in an outcome that a patient would perceive as meaningful. 
      The Initiative on Methods, Measurement and Assessment in Clinical Trials 
      (IMMPACT) group proposed defining the MCID as a 30% improvement in self-reported 
      pain or function. However, this MCID threshold has not been validated against an 
      objective physical measure. PURPOSE: To test the validity of the IMMPACT-based 
      MCID threshold, using an objective physical measure as an external anchor. STUDY 
      DESIGN/SETTING: Prospective study of chronic disabling occupational lumbar 
      disorder (CDOLD) patients completing a functional restoration program. PATIENT 
      SAMPLE: A consecutive cohort of 743 CDOLD patients. OUTCOME MEASURES: Self-report 
      measures of pain-related function were compared with an objective lifting 
      measure, the progressive isoinertial lifting evaluation (PILE), obtained after 
      treatment. METHODS: The association between reporting 30% or greater improvement 
      (the IMMPACT's MCID key criterion) and the PILE score after treatment was 
      assessed. RESULTS: A 30% or greater improvement on the self-report measures was 
      significantly associated with improvement in physical function on the PILE task. 
      CONCLUSIONS: Despite extensive use of the MCID to evaluate effects of treatment 
      in spinal disorders, this is the first empirical documentation of the validity of 
      the IMMPACT's 30% change criterion compared with an objective physical anchor.
CI  - Copyright (c) 2013 Elsevier Inc. All rights reserved.
FAU - Gatchel, Robert J
AU  - Gatchel RJ
AD  - Department of Psychology, College of Science, The University of Texas at 
      Arlington, Arlington, TX, USA.
FAU - Mayer, Tom G
AU  - Mayer TG
FAU - Choi, Yunhee
AU  - Choi Y
FAU - Chou, Roger
AU  - Chou R
LA  - eng
PT  - Journal Article
PT  - Validation Study
DEP - 20130321
PL  - United States
TA  - Spine J
JT  - The spine journal : official journal of the North American Spine Society
JID - 101130732
SB  - IM
MH  - Adult
MH  - *Disability Evaluation
MH  - Female
MH  - Humans
MH  - Low Back Pain/*diagnosis/surgery
MH  - Lumbar Vertebrae/*surgery
MH  - Male
MH  - Middle Aged
MH  - Pain Measurement
MH  - Patient Satisfaction
MH  - Prospective Studies
MH  - Quality of Life
MH  - Spinal Diseases/*diagnosis/surgery
MH  - Surveys and Questionnaires
MH  - Treatment Outcome
OTO - NOTNLM
OT  - Chronic disabling occupational lumbar spinal disorders
OT  - Functional restoration
OT  - IMMPACT
OT  - Minimal clinically important difference (MCID)
OT  - PILE (progressive isoinertial lifting evaluation)
EDAT- 2013/03/26 06:00
MHDA- 2014/03/22 06:00
CRDT- 2013/03/26 06:00
PHST- 2012/01/31 00:00 [received]
PHST- 2012/10/04 00:00 [revised]
PHST- 2013/02/08 00:00 [accepted]
PHST- 2013/03/26 06:00 [entrez]
PHST- 2013/03/26 06:00 [pubmed]
PHST- 2014/03/22 06:00 [medline]
AID - S1529-9430(13)00172-1 [pii]
AID - 10.1016/j.spinee.2013.02.015 [doi]
PST - ppublish
SO  - Spine J. 2013 Aug;13(8):889-93. doi: 10.1016/j.spinee.2013.02.015. Epub 2013 Mar 
      21.