PMID- 24971868
OWN - NLM
STAT- MEDLINE
DCOM- 20150511
LR  - 20220321
IS  - 1522-9653 (Electronic)
IS  - 1063-4584 (Linking)
VI  - 22
IP  - 8
DP  - 2014 Aug
TI  - Concordance between important change and acceptable symptom state following knee 
      arthroplasty: the role of baseline scores.
PG  - 1107-10
LID - S1063-4584(14)01115-7 [pii]
LID - 10.1016/j.joca.2014.06.006 [doi]
AB  - OBJECTIVE: To assess the influence of baseline score on concordance between the 
      Minimal Clinically Important Difference (MCID) and Patient Acceptable Symptom 
      State (PASS) estimates obtained on persons following total knee arthroplasty 
      (TKA). DESIGN: Patients scheduled for TKA in 15 hospitals in Spain were recruited 
      and provided pre-operative and 1-year postoperative Western Ontario and McMaster 
      Universities Osteoarthritis Index (WOMAC) Pain and Function scores. 1 year 
      following surgery, patients completed questionnaires that determined the 
      importance of any changes in status since surgery as well as the extent of 
      satisfaction with the 1-year outcome. Kappa (kappa) was used to determine the extent 
      of concordance between MCID and PASS measures for the entire sample and after 
      splitting the sample based on quartiles of the baseline WOMAC scores. RESULTS: A 
      total of 923 patients participated in the study. The extent of concordance 
      between MCID and PASS without regard to baseline score was kappa = 0.41 (95% 
      Confidence Interval (CI) = 0.36, 0.47) for WOMAC Function and after stratifying 
      baseline scores into quartiles, kappa = 0.72 (95%CI = 0.68, 0.77). Similar estimates 
      were obtained for WOMAC Pain. CONCLUSIONS: Baseline score has substantial 
      influence on the extent of concordance between MCID and PASS for patients 
      undergoing TKA. Clinicians should account for baseline score when interpreting 
      either MCID or PASS and the extent to which these measures agree. These findings 
      have potential to influence the interpretation of outcome following TKA.
CI  - Copyright (c) 2014 Osteoarthritis Research Society International. Published by 
      Elsevier Ltd. All rights reserved.
FAU - Escobar, A
AU  - Escobar A
AD  - Research Unit, Hospital Universitario Basurto, Avda. Montevideo 18, 48013 Bilbao, 
      Spain; Red de Investigacion en Servicios de Salud en Enfermedades Cronicas 
      (REDISSEC), Spain. Electronic address: ANTONIO.ESCOBARMARTINEZ@osakidetza.net.
FAU - Riddle, D L
AU  - Riddle DL
AD  - Departments of Physical Therapy and Orthopaedic Surgery, Virginia Commonwealth 
      University, Richmond, VA, USA. Electronic address: dlriddle@vcu.edu.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20140625
PL  - England
TA  - Osteoarthritis Cartilage
JT  - Osteoarthritis and cartilage
JID - 9305697
SB  - IM
MH  - Aged
MH  - *Arthroplasty, Replacement, Knee
MH  - Female
MH  - Humans
MH  - Male
MH  - Middle Aged
MH  - Osteoarthritis, Knee/physiopathology/*surgery
MH  - *Pain Measurement
MH  - *Patient Satisfaction
MH  - Severity of Illness Index
MH  - Surveys and Questionnaires
MH  - Treatment Outcome
OTO - NOTNLM
OT  - Arthroplasty
OT  - Knee
OT  - MCID
OT  - PASS
EDAT- 2014/06/28 06:00
MHDA- 2015/05/12 06:00
CRDT- 2014/06/28 06:00
PHST- 2014/03/12 00:00 [received]
PHST- 2014/05/27 00:00 [revised]
PHST- 2014/06/10 00:00 [accepted]
PHST- 2014/06/28 06:00 [entrez]
PHST- 2014/06/28 06:00 [pubmed]
PHST- 2015/05/12 06:00 [medline]
AID - S1063-4584(14)01115-7 [pii]
AID - 10.1016/j.joca.2014.06.006 [doi]
PST - ppublish
SO  - Osteoarthritis Cartilage. 2014 Aug;22(8):1107-10. doi: 
      10.1016/j.joca.2014.06.006. Epub 2014 Jun 25.