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Measuring health related quality of life in patients with rheumatoid arthritis--reliability, validity, and responsiveness of a Swedish version of RAQoL.

Eberhardt, Kerstin LU ; Duckberg, Siv; Larsson, Britt-Marie; Johnson, Pia Malcus and Nived, Kerstin (2002) In Scandinavian Journal of Rheumatology 31(1). p.6-12
Abstract
OBJECTIVE: To adapt the Rheumatoid Arthritis Quality of Life (RAQoL) questionnaire for Swedish patients and evaluate psychometric properties in a prospective study. METHODS: Reliability was assessed in 61 patients filling in RAQoL two times with one week's interval. 114 patients completed RAQoL and Nottingham Health Profile (NHP) on 2-3 occasions 6 months apart. Validity was evaluated comparing RAQoL-scores to disease-related variables and NHP subscales. Standardized response mean was applied to calculate responsiveness with the RA-related variables as external indicators of change. RESULTS: Test-retest reliability was high and internal consistency sufficient. RAQoL correlated as expected to NHP section scores. In a multivariate model the... (More)
OBJECTIVE: To adapt the Rheumatoid Arthritis Quality of Life (RAQoL) questionnaire for Swedish patients and evaluate psychometric properties in a prospective study. METHODS: Reliability was assessed in 61 patients filling in RAQoL two times with one week's interval. 114 patients completed RAQoL and Nottingham Health Profile (NHP) on 2-3 occasions 6 months apart. Validity was evaluated comparing RAQoL-scores to disease-related variables and NHP subscales. Standardized response mean was applied to calculate responsiveness with the RA-related variables as external indicators of change. RESULTS: Test-retest reliability was high and internal consistency sufficient. RAQoL correlated as expected to NHP section scores. In a multivariate model the Stanford Health Assessment Questionnaire disability index (HAQ) and general health could explain 40% and disease activity measures 13% of the variance of RAQoL. Correlations between change scores of clinical variables and RAQoL and NHP were weak but positive. Standardized response means regarding change of disease activity, HAQ, and general health were small but in the same range for both RAQoL and NHP. CONCLUSION: The Swedish RAQoL had similar measurement properties as the original version. However, responsiveness regarding condition specific measures was not better than for the generic instrument NHP. (Less)
Please use this url to cite or link to this publication:
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organization
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type
Contribution to journal
publication status
published
subject
keywords
Reproducibility of Results, Regression Analysis, Quality of Life, Psychometrics, Prospective Studies, Middle Age, Male, Human, Female, Cross-Cultural Comparison, Comparative Study, Rheumatoid : psychology, Arthritis, Rheumatoid : physiopathology, Sickness Impact Profile, Support, Non-U.S. Gov't, Sweden
in
Scandinavian Journal of Rheumatology
volume
31
issue
1
pages
6 - 12
publisher
Taylor & Francis
external identifiers
  • wos:000174497400002
  • pmid:11922201
  • scopus:0036181360
ISSN
1502-7732
DOI
10.1080/030097402317255291
language
English
LU publication?
yes
id
ede59588-0f85-40fd-b99b-1bdc51369bc4 (old id 107297)
alternative location
http://www.ncbi.nlm.nih.gov/sites/entrez?Db=pubmed&Cmd=ShowDetailView&TermToSearch=11922201&ordinalpos=3&itool=EntrezSystem2.PEntrez.Pubmed.Pubmed_ResultsPanel.Pubmed_RVDocSum
date added to LUP
2007-07-04 12:18:49
date last changed
2017-05-28 03:33:16
@article{ede59588-0f85-40fd-b99b-1bdc51369bc4,
  abstract     = {OBJECTIVE: To adapt the Rheumatoid Arthritis Quality of Life (RAQoL) questionnaire for Swedish patients and evaluate psychometric properties in a prospective study. METHODS: Reliability was assessed in 61 patients filling in RAQoL two times with one week's interval. 114 patients completed RAQoL and Nottingham Health Profile (NHP) on 2-3 occasions 6 months apart. Validity was evaluated comparing RAQoL-scores to disease-related variables and NHP subscales. Standardized response mean was applied to calculate responsiveness with the RA-related variables as external indicators of change. RESULTS: Test-retest reliability was high and internal consistency sufficient. RAQoL correlated as expected to NHP section scores. In a multivariate model the Stanford Health Assessment Questionnaire disability index (HAQ) and general health could explain 40% and disease activity measures 13% of the variance of RAQoL. Correlations between change scores of clinical variables and RAQoL and NHP were weak but positive. Standardized response means regarding change of disease activity, HAQ, and general health were small but in the same range for both RAQoL and NHP. CONCLUSION: The Swedish RAQoL had similar measurement properties as the original version. However, responsiveness regarding condition specific measures was not better than for the generic instrument NHP.},
  author       = {Eberhardt, Kerstin and Duckberg, Siv and Larsson, Britt-Marie and Johnson, Pia Malcus and Nived, Kerstin},
  issn         = {1502-7732},
  keyword      = {Reproducibility of Results,Regression Analysis,Quality of Life,Psychometrics,Prospective Studies,Middle Age,Male,Human,Female,Cross-Cultural Comparison,Comparative Study,Rheumatoid : psychology,Arthritis,Rheumatoid : physiopathology,Sickness Impact Profile,Support,Non-U.S. Gov't,Sweden},
  language     = {eng},
  number       = {1},
  pages        = {6--12},
  publisher    = {Taylor & Francis},
  series       = {Scandinavian Journal of Rheumatology},
  title        = {Measuring health related quality of life in patients with rheumatoid arthritis--reliability, validity, and responsiveness of a Swedish version of RAQoL.},
  url          = {http://dx.doi.org/10.1080/030097402317255291},
  volume       = {31},
  year         = {2002},
}