PMID- 15834591
OWN - NLM
STAT- MEDLINE
DCOM- 20060525
LR  - 20181113
IS  - 0940-6719 (Print)
IS  - 0940-6719 (Linking)
VI  - 14
IP  - 10
DP  - 2005 Dec
TI  - Psychometric properties of the functional rating index in patients with low back 
      pain.
PG  - 1008-12
AB  - MAIN PROBLEM: The purpose of this study was to validate the psychometric 
      properties of the functional rating index (FRI), establish the instrument's 
      minimum clinically important difference (MCID), and compare its psychometric 
      properties with the Oswestry questionnaire. METHODS: This was a cohort study of 
      patients with low back pain (LBP) undergoing physical therapy. One thirty one 
      patients with a primary complaint of LBP participating in a clinical trial were 
      assessed at baseline and at a 1- and 4-week follow-up. Test-re-test reliability 
      was examined using the intraclass correlation coefficient, and validity was 
      examined by determining the association between the FRI and Oswestry, a 
      concurrent measure of disability. Responsiveness was examined by calculating the 
      standard error of the measure, minimum detectable change, area under a receiver 
      operating characteristic curve, and minimum clinically important difference. 
      Changes in clinical status at each follow-up period were compared to the average 
      of the patient and therapist's perceived improvement using the 15-point global 
      rating of change scale. RESULTS: Test-retest reliability of the FRI was moderate, 
      with an intraclass correlation coefficient equal to 0.63 (0.35, 0.80). Validity 
      of the FRI was supported by a moderate correlation between the FRI and Oswestry 
      (r=0.67, P<0.001). Area under the curve for the FRI was 0.93 (0.89, 0.98), and 
      the minimum clinically important difference was approximately nine points. 
      CONCLUSIONS: The FRI is less reliable than the Oswestry but appears to have 
      comparable validity and responsiveness. Before the FRI can be recommended for 
      widespread use in patients with neck and low back pain, it should be further 
      tested in patients with neck pain.
FAU - Childs, John D
AU  - Childs JD
AD  - Department of Physical Therapy, Wilford Hall Medical Center, San Antonio, TX, 
      USA. childsjd@bigfoot.com
FAU - Piva, Sara R
AU  - Piva SR
LA  - eng
PT  - Comparative Study
PT  - Journal Article
PT  - Multicenter Study
PT  - Randomized Controlled Trial
PT  - Research Support, Non-U.S. Gov't
DEP - 20050415
PL  - Germany
TA  - Eur Spine J
JT  - European spine journal : official publication of the European Spine Society, the 
      European Spinal Deformity Society, and the European Section of the Cervical Spine 
      Research Society
JID - 9301980
SB  - IM
EIN - Eur Spine J. 2005 Dec;14(10):1013
MH  - Adolescent
MH  - Adult
MH  - Cohort Studies
MH  - Disability Evaluation
MH  - Follow-Up Studies
MH  - Humans
MH  - Low Back Pain/diagnosis/*psychology
MH  - Middle Aged
MH  - Neck Pain/diagnosis/psychology
MH  - *Psychometrics
MH  - Surveys and Questionnaires
EDAT- 2005/04/19 09:00
MHDA- 2006/05/26 09:00
CRDT- 2005/04/19 09:00
PHST- 2004/07/25 00:00 [received]
PHST- 2004/12/27 00:00 [accepted]
PHST- 2004/11/14 00:00 [revised]
PHST- 2005/04/19 09:00 [pubmed]
PHST- 2006/05/26 09:00 [medline]
PHST- 2005/04/19 09:00 [entrez]
AID - 10.1007/s00586-005-0900-z [doi]
PST - ppublish
SO  - Eur Spine J. 2005 Dec;14(10):1008-12. doi: 10.1007/s00586-005-0900-z. Epub 2005 
      Apr 15.