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The revised Bristol Rheumatoid Arthritis Fatigue measures and the Rheumatoid Arthritis Impact of Disease scale : Validation in six countries

Hewlett, Sarah; Kirwan, John; Bode, Christina; Cramp, Fiona; Carmona, Loreto; Dures, Emma; Englbrecht, Matthias; Fransen, Jaap; Greenwood, Rosemary and Hagel, Sofia LU , et al. (2018) In Rheumatology (United Kingdom) 57(2). p.300-308
Abstract

Objective. To evaluate the Bristol Rheumatoid Arthritis Fatigue Multidimensional Questionnaire (BRAFMDQ), the revised Bristol Rheumatoid Arthritis Numerical Rating Scales (BRAF-NRS V2) and the Rheumatoid Arthritis Impact of Disease (RAID) scale in six countries. Methods. We surveyed RA patients in France, Germany, The Netherlands, Spain, Sweden and the UK, including the HAQ, 36-item Short Form Health Survey (SF-36) and potential revisions of the BRAF-NRS coping and Spanish RAID coping items. Factor structure and internal consistency were examined by factor analysis and Cronbach's α and construct validity by Spearman's correlation. Results. A total of 1276 patients participated (76% female, 25% with a disease duration < 5 years,... (More)

Objective. To evaluate the Bristol Rheumatoid Arthritis Fatigue Multidimensional Questionnaire (BRAFMDQ), the revised Bristol Rheumatoid Arthritis Numerical Rating Scales (BRAF-NRS V2) and the Rheumatoid Arthritis Impact of Disease (RAID) scale in six countries. Methods. We surveyed RA patients in France, Germany, The Netherlands, Spain, Sweden and the UK, including the HAQ, 36-item Short Form Health Survey (SF-36) and potential revisions of the BRAF-NRS coping and Spanish RAID coping items. Factor structure and internal consistency were examined by factor analysis and Cronbach's α and construct validity by Spearman's correlation. Results. A total of 1276 patients participated (76% female, 25% with a disease duration < 5 years, median HAQ 1.0). The original BRAF-MDQ four-factor structure and RAID single-factor structure were confirmed in every country with ≥66% of variation in items explained by each factor and all item factor loadings of 0.71-0.98. Internal consistency for the BRAF-MDQ total and subscales was a Cronbach's α of 0.75-0.96 and for RAID, 0.93-0.96. Fatigue construct validity was shown for the BRAF-MDQ and BRAF-NRS severity and effect scales, correlated internally with SF-36 vitality and with RAID fatigue (r = 0.63-0.93). Broader construct validity for the BRAFs and RAID was shown by correlation with each other, HAQ and SF-36 domains (r = 0.46-0.82), with similar patterns in individual countries. The revised BRAF-NRS V2 Coping item had stronger validity than the original in all analyses. The revised Spanish RAID coping item performed as well as the original. Conclusion. Across six European countries, the BRAF-MDQ identifies the same four aspects of fatigue, and along with the RAID, shows strong factor structure and internal consistency and moderate-good construct validity. The revised BRAF-NRS V2 shows improved construct validity and replaces the original.

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Contribution to journal
publication status
published
subject
keywords
Cultural, Fatigue, Impact, PROMs, Rheumatoid arthritis, Validation
in
Rheumatology (United Kingdom)
volume
57
issue
2
pages
9 pages
publisher
Oxford University Press
external identifiers
  • scopus:85041541280
ISSN
1462-0324
DOI
10.1093/rheumatology/kex370
language
English
LU publication?
yes
id
0120b758-328d-4452-8da4-0e66672b558e
date added to LUP
2018-03-06 13:16:13
date last changed
2018-09-16 04:53:44
@article{0120b758-328d-4452-8da4-0e66672b558e,
  abstract     = {<p>Objective. To evaluate the Bristol Rheumatoid Arthritis Fatigue Multidimensional Questionnaire (BRAFMDQ), the revised Bristol Rheumatoid Arthritis Numerical Rating Scales (BRAF-NRS V2) and the Rheumatoid Arthritis Impact of Disease (RAID) scale in six countries. Methods. We surveyed RA patients in France, Germany, The Netherlands, Spain, Sweden and the UK, including the HAQ, 36-item Short Form Health Survey (SF-36) and potential revisions of the BRAF-NRS coping and Spanish RAID coping items. Factor structure and internal consistency were examined by factor analysis and Cronbach's α and construct validity by Spearman's correlation. Results. A total of 1276 patients participated (76% female, 25% with a disease duration &lt; 5 years, median HAQ 1.0). The original BRAF-MDQ four-factor structure and RAID single-factor structure were confirmed in every country with ≥66% of variation in items explained by each factor and all item factor loadings of 0.71-0.98. Internal consistency for the BRAF-MDQ total and subscales was a Cronbach's α of 0.75-0.96 and for RAID, 0.93-0.96. Fatigue construct validity was shown for the BRAF-MDQ and BRAF-NRS severity and effect scales, correlated internally with SF-36 vitality and with RAID fatigue (r = 0.63-0.93). Broader construct validity for the BRAFs and RAID was shown by correlation with each other, HAQ and SF-36 domains (r = 0.46-0.82), with similar patterns in individual countries. The revised BRAF-NRS V2 Coping item had stronger validity than the original in all analyses. The revised Spanish RAID coping item performed as well as the original. Conclusion. Across six European countries, the BRAF-MDQ identifies the same four aspects of fatigue, and along with the RAID, shows strong factor structure and internal consistency and moderate-good construct validity. The revised BRAF-NRS V2 shows improved construct validity and replaces the original.</p>},
  author       = {Hewlett, Sarah and Kirwan, John and Bode, Christina and Cramp, Fiona and Carmona, Loreto and Dures, Emma and Englbrecht, Matthias and Fransen, Jaap and Greenwood, Rosemary and Hagel, Sofia and van de Laar, Maart and Molto, Anna and Nicklin, Joanna and Petersson, Ingemar F. and Redondo, Marta and Schett, Georg and Gossec, Laure},
  issn         = {1462-0324},
  keyword      = {Cultural,Fatigue,Impact,PROMs,Rheumatoid arthritis,Validation},
  language     = {eng},
  number       = {2},
  pages        = {300--308},
  publisher    = {Oxford University Press},
  series       = {Rheumatology (United Kingdom)},
  title        = {The revised Bristol Rheumatoid Arthritis Fatigue measures and the Rheumatoid Arthritis Impact of Disease scale : Validation in six countries},
  url          = {http://dx.doi.org/10.1093/rheumatology/kex370},
  volume       = {57},
  year         = {2018},
}