PMID- 24598378
OWN - NLM
STAT- MEDLINE
DCOM- 20140515
LR  - 20181202
IS  - 1878-5921 (Electronic)
IS  - 0895-4356 (Linking)
VI  - 67
IP  - 5
DP  - 2014 May
TI  - Patients' ratings of global perceived change during 2 years were strongly 
      influenced by the current health status.
PG  - 508-15
LID - S0895-4356(13)00506-4 [pii]
LID - 10.1016/j.jclinepi.2013.12.001 [doi]
AB  - OBJECTIVES: To investigate the longitudinal validity of patients' ratings of 
      global perceived change (GPC) and to assess the implications of using the GPC as 
      the anchor to determine the minimal important change (MIC). STUDY DESIGN AND 
      SETTING: Secondary analysis of data from a multicenter study including 380 
      patients with disc-related sciatica with follow-ups at 3, 6, 12, and 24 months. 
      The GPC scale ranged from much worse to completely gone. Five patient-reported 
      outcome measures were used. An MIC was defined as the mean change score in the 
      actual outcome measure for patients reporting being better. The influence of 
      patients' current state and baseline scores on the GPC was analyzed by 
      multivariate linear regression. Differences in the magnitude of the MIC between 
      the 3- and 24-month recall periods were analyzed by hierarchical linear models. 
      RESULTS: Across all recall periods and outcome measures, the GPC was strongly 
      influenced by the patient's state at the time of asking. In four of five outcome 
      measures, the magnitude of the MIC increased when recall increased from 3 to 24 
      months. CONCLUSION: Caution is needed when using the GPC to determine the MIC of 
      patient-reported outcome measures in patients with chronic conditions.
CI  - Copyright (c) 2014 Elsevier Inc. All rights reserved.
FAU - Grovle, Lars
AU  - Grovle L
AD  - Department of Rheumatology, Sykehuset Ostfold, 1603 Fredrikstad, Norway. 
      Electronic address: largro@so-hf.no.
FAU - Haugen, Anne J
AU  - Haugen AJ
AD  - Department of Rheumatology, Sykehuset Ostfold, 1603 Fredrikstad, Norway.
FAU - Hasvik, Eivind
AU  - Hasvik E
AD  - Department of Physiotherapy, Sykehuset Ostfold, 1603 Fredrikstad, Norway; 
      National Institute of Occupational Health, 0033 Oslo, Norway.
FAU - Natvig, Bard
AU  - Natvig B
AD  - Department of General Practice, Institute of Health and Society, University of 
      Oslo, 0316 Oslo, Norway.
FAU - Brox, Jens I
AU  - Brox JI
AD  - Department of Physical Medicine and Rehabilitation, Oslo University Hospital, 
      0424 Oslo, Norway.
FAU - Grotle, Margreth
AU  - Grotle M
AD  - FORMI (Communication Unit for Musculoskeletal Disorders), Division of 
      Neuroscience, Oslo University Hospital, Ullevaal, 0424 Oslo, Norway; Department 
      of Physiotherapy, Faculty of Health Sciences, Oslo and Akershus University 
      College of Applied Sciences, 0130 Oslo, Norway.
LA  - eng
PT  - Journal Article
PT  - Multicenter Study
PT  - Research Support, Non-U.S. Gov't
DEP - 20140303
PL  - United States
TA  - J Clin Epidemiol
JT  - Journal of clinical epidemiology
JID - 8801383
RN  - Intervertebral disc disease
SB  - IM
MH  - *Diagnostic Self Evaluation
MH  - Follow-Up Studies
MH  - *Health Status
MH  - Humans
MH  - Intervertebral Disc Degeneration/complications/*therapy
MH  - Intervertebral Disc Displacement/complications/*therapy
MH  - Linear Models
MH  - Mental Recall
MH  - Multivariate Analysis
MH  - Reproducibility of Results
MH  - Sciatica/etiology/*therapy
MH  - Time Factors
MH  - Treatment Outcome
OTO - NOTNLM
OT  - Global perceived change
OT  - Minimal clinically important difference
OT  - Minimal important change
OT  - Outcome assessment
OT  - Recall bias
OT  - Transition rating
EDAT- 2014/03/07 06:00
MHDA- 2014/05/16 06:00
CRDT- 2014/03/07 06:00
PHST- 2013/05/02 00:00 [received]
PHST- 2013/10/29 00:00 [revised]
PHST- 2013/12/06 00:00 [accepted]
PHST- 2014/03/07 06:00 [entrez]
PHST- 2014/03/07 06:00 [pubmed]
PHST- 2014/05/16 06:00 [medline]
AID - S0895-4356(13)00506-4 [pii]
AID - 10.1016/j.jclinepi.2013.12.001 [doi]
PST - ppublish
SO  - J Clin Epidemiol. 2014 May;67(5):508-15. doi: 10.1016/j.jclinepi.2013.12.001. 
      Epub 2014 Mar 3.