PMID- 21131272
OWN - NLM
STAT- MEDLINE
DCOM- 20111102
LR  - 20191210
IS  - 1462-0332 (Electronic)
IS  - 1462-0324 (Linking)
VI  - 50
IP  - 4
DP  - 2011 Apr
TI  - Comparison of measures of functional disability in patients with gout.
PG  - 709-13
LID - 10.1093/rheumatology/keq387 [doi]
AB  - OBJECTIVE: To compare the measurement properties of the HAQ disability index 
      (HAQ-DI), HAQ-II and short form 36 physical functioning scale (PF-10) in patients 
      with gout. METHODS: A cross-sectional sample of 97 patients with gout completed 
      all three measures. Reliability was assessed by examining the internal 
      consistency of the scales. Validity was assessed by testing for expected 
      intercorrelations and associations with other aspects of health status and the 
      ability to discriminate between patients with different levels of general health. 
      Additionally, distributional properties were examined. RESULTS: All three 
      measures demonstrated high reliability (Cronbach's alpha >/= 0.93), strong 
      intercorrelations (r  >/=  0.75), and the expected pattern of external 
      correlations. The HAQ-DI and HAQ-II performed somewhat better in discriminating 
      between patients. However, both demonstrated ceiling effects of 34.0 and 25.8%, 
      respectively, compared with only 7.2% of the patients scoring no disability on 
      the PF-10. CONCLUSIONS: The HAQ-DI, HAQ-II and PF-10 demonstrated similar and 
      adequate reliability and validity for measuring functional disability in patients 
      with gout. The large ceiling effects of both HAQ versions, however, may point to 
      limited content validity and responsiveness to change. Further research should 
      examine whether current instruments cover all aspects of physical functioning 
      relevant to patients with gout.
FAU - Ten Klooster, Peter M
AU  - Ten Klooster PM
AD  - Institute for Behavioural Research, Faculty of Behavioural Sciences, University 
      of Twente, The Netherlands. p.m.tenklooster@utwente.nl
FAU - Oude Voshaar, Martijn A H
AU  - Oude Voshaar MA
FAU - Taal, Erik
AU  - Taal E
FAU - van de Laar, Mart A F J
AU  - van de Laar MA
LA  - eng
PT  - Comparative Study
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PT  - Validation Study
DEP - 20101202
PL  - England
TA  - Rheumatology (Oxford)
JT  - Rheumatology (Oxford, England)
JID - 100883501
SB  - IM
MH  - Activities of Daily Living
MH  - Aged
MH  - Cross-Sectional Studies
MH  - Diagnosis, Differential
MH  - *Disability Evaluation
MH  - Female
MH  - Gout/diagnosis/*physiopathology
MH  - Humans
MH  - Male
MH  - Middle Aged
MH  - Outcome Assessment, Health Care/*methods
MH  - Reproducibility of Results
MH  - Severity of Illness Index
EDAT- 2010/12/07 06:00
MHDA- 2011/11/04 06:00
CRDT- 2010/12/07 06:00
PHST- 2010/12/07 06:00 [entrez]
PHST- 2010/12/07 06:00 [pubmed]
PHST- 2011/11/04 06:00 [medline]
AID - keq387 [pii]
AID - 10.1093/rheumatology/keq387 [doi]
PST - ppublish
SO  - Rheumatology (Oxford). 2011 Apr;50(4):709-13. doi: 10.1093/rheumatology/keq387. 
      Epub 2010 Dec 2.