Moving instead of asking? Performance-based tests and BASFI-questionnaire measure different aspects of physical function in ankylosing spondylitis

Salima F.E. van Weely; J. Christiaan van Denderen; Martijn P.M. Steultjens; Marike van der Leeden; Michael T. Nurmohamed; Joost Dekker; Ben A.C. Dijkmans; Irene E. van der Horst-Bruinsma

doi:10.1186/ar3765

Moving instead of asking? Performance-based tests and BASFI-questionnaire measure different aspects of physical function in ankylosing spondylitis

Salima F.E. van Weely^*, J. Christiaan van Denderen, Martijn P.M. Steultjens, Marike van der Leeden, Michael T. Nurmohamed, Joost Dekker, Ben A.C. Dijkmans, Irene E. van der Horst-Bruinsma

^*Corresponding author for this work

Podiatry

Research output: Contribution to journal › Article › peer-review

35 Citations (Scopus)

29 Downloads (Pure)

Abstract

Introduction: Ankylosing Spondylitis (AS) is characterised by limitations in physical function. The Bath Ankylosing Spondylitis Functional Index (BASFI) is considered to be the gold-standard to assess physical function in AS patients. However, the BASFI questionnaire is a self-reported outcome measure and susceptible to subjective interpretation (under- or over-estimation). More objective outcome measures, like performance-based tests, could provide an objective outcome measurement for the evaluation of limitations in physical function. Therefore, the primary aim of this study was to determine the association between performance-based measures and the BASFI questionnaire.

Methods: In this cross-sectional study 126 AS patients completed the BASFI questionnaire and eight performance-based tests based on BASFI-items. Each test received three scores: one for performance (time or points) and a score for exertion and pain experienced during performance (using modified Borg-scale and VAS 0-100 mm, respectively). Linear regression analyses were used to assess the associations between the BASFI questionnaire and performance-based tests.

Results: The univariable association between performance and BASFI-score was moderate with a R-square of 0.31 and Beta of 0.56 (p's < 0.05). In a multivariable analysis, the association between performance, exertion and pain on the one hand and BASFI-score on the other was assessed; R-square increased to 0.54: the Beta's for exertion and pain during performance were 0.38 and 0.26, respectively; the Beta for performance decreased to 0.19 (p's < 0.05).

Conclusions: This study demonstrates that alongside actual performance, patients seem to incorporate exertion and pain in their assessment of perceived physical function on the BASFI questionnaire. Performance-based tests could provide an objective outcome measurement for the evaluation of physical function and give relevant new information in addition to the BASFI questionnaire.

Original language	English
Article number	R52
Number of pages	6
Journal	Arthritis Research and Therapy
Volume	14
Issue number	2
DOIs	https://doi.org/10.1186/ar3765
Publication status	Published - 8 Mar 2012

Keywords

Physical Function
Ankylose Spondylitis
Bath Ankylose Spondylitis Functional Index
Bath Ankylose Spondylitis Metrology Index
Objective Outcome Measurement

ASJC Scopus subject areas

Rheumatology
Immunology and Allergy
Immunology

Documents and Links

10.1186/ar3765

van Weely, S. F. E. et al (2012) Moving instead of asking? Performance-based tests and BASFI-questionnaire measure different aspects of physical function in ankylosing spondylitis
© 2012 Van Weely et al.; licensee BioMed Central Ltd. This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Final published version, 267 KBLicence: CC BY

Cite this

van Weely, S. F. E., van Denderen, J. C., Steultjens, M. P. M., van der Leeden, M., Nurmohamed, M. T., Dekker, J., Dijkmans, B. A. C., & van der Horst-Bruinsma, I. E. (2012). Moving instead of asking? Performance-based tests and BASFI-questionnaire measure different aspects of physical function in ankylosing spondylitis. Arthritis Research and Therapy, 14(2), Article R52. https://doi.org/10.1186/ar3765

@article{287df70b98004937831be80c9645c530,

title = "Moving instead of asking? Performance-based tests and BASFI-questionnaire measure different aspects of physical function in ankylosing spondylitis",

abstract = "Introduction: Ankylosing Spondylitis (AS) is characterised by limitations in physical function. The Bath Ankylosing Spondylitis Functional Index (BASFI) is considered to be the gold-standard to assess physical function in AS patients. However, the BASFI questionnaire is a self-reported outcome measure and susceptible to subjective interpretation (under- or over-estimation). More objective outcome measures, like performance-based tests, could provide an objective outcome measurement for the evaluation of limitations in physical function. Therefore, the primary aim of this study was to determine the association between performance-based measures and the BASFI questionnaire.Methods: In this cross-sectional study 126 AS patients completed the BASFI questionnaire and eight performance-based tests based on BASFI-items. Each test received three scores: one for performance (time or points) and a score for exertion and pain experienced during performance (using modified Borg-scale and VAS 0-100 mm, respectively). Linear regression analyses were used to assess the associations between the BASFI questionnaire and performance-based tests.Results: The univariable association between performance and BASFI-score was moderate with a R-square of 0.31 and Beta of 0.56 (p's < 0.05). In a multivariable analysis, the association between performance, exertion and pain on the one hand and BASFI-score on the other was assessed; R-square increased to 0.54: the Beta's for exertion and pain during performance were 0.38 and 0.26, respectively; the Beta for performance decreased to 0.19 (p's < 0.05).Conclusions: This study demonstrates that alongside actual performance, patients seem to incorporate exertion and pain in their assessment of perceived physical function on the BASFI questionnaire. Performance-based tests could provide an objective outcome measurement for the evaluation of physical function and give relevant new information in addition to the BASFI questionnaire.",

keywords = "Physical Function, Ankylose Spondylitis, Bath Ankylose Spondylitis Functional Index, Bath Ankylose Spondylitis Metrology Index, Objective Outcome Measurement",

author = "{van Weely}, {Salima F.E.} and {van Denderen}, {J. Christiaan} and Steultjens, {Martijn P.M.} and {van der Leeden}, Marike and Nurmohamed, {Michael T.} and Joost Dekker and Dijkmans, {Ben A.C.} and {van der Horst-Bruinsma}, {Irene E.}",

year = "2012",

month = mar,

day = "8",

doi = "10.1186/ar3765",

language = "English",

volume = "14",

journal = "Arthritis Research and Therapy",

issn = "1478-6354",

publisher = "BioMed Central Ltd.",

number = "2",

}

van Weely, SFE, van Denderen, JC, Steultjens, MPM, van der Leeden, M, Nurmohamed, MT, Dekker, J, Dijkmans, BAC & van der Horst-Bruinsma, IE 2012, 'Moving instead of asking? Performance-based tests and BASFI-questionnaire measure different aspects of physical function in ankylosing spondylitis', Arthritis Research and Therapy, vol. 14, no. 2, R52. https://doi.org/10.1186/ar3765

Moving instead of asking? Performance-based tests and BASFI-questionnaire measure different aspects of physical function in ankylosing spondylitis. / van Weely, Salima F.E.; van Denderen, J. Christiaan; Steultjens, Martijn P.M. et al.
In: Arthritis Research and Therapy, Vol. 14, No. 2, R52, 08.03.2012.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Moving instead of asking? Performance-based tests and BASFI-questionnaire measure different aspects of physical function in ankylosing spondylitis

AU - van Weely, Salima F.E.

AU - van Denderen, J. Christiaan

AU - Steultjens, Martijn P.M.

AU - van der Leeden, Marike

AU - Nurmohamed, Michael T.

AU - Dekker, Joost

AU - Dijkmans, Ben A.C.

AU - van der Horst-Bruinsma, Irene E.

PY - 2012/3/8

Y1 - 2012/3/8

N2 - Introduction: Ankylosing Spondylitis (AS) is characterised by limitations in physical function. The Bath Ankylosing Spondylitis Functional Index (BASFI) is considered to be the gold-standard to assess physical function in AS patients. However, the BASFI questionnaire is a self-reported outcome measure and susceptible to subjective interpretation (under- or over-estimation). More objective outcome measures, like performance-based tests, could provide an objective outcome measurement for the evaluation of limitations in physical function. Therefore, the primary aim of this study was to determine the association between performance-based measures and the BASFI questionnaire.Methods: In this cross-sectional study 126 AS patients completed the BASFI questionnaire and eight performance-based tests based on BASFI-items. Each test received three scores: one for performance (time or points) and a score for exertion and pain experienced during performance (using modified Borg-scale and VAS 0-100 mm, respectively). Linear regression analyses were used to assess the associations between the BASFI questionnaire and performance-based tests.Results: The univariable association between performance and BASFI-score was moderate with a R-square of 0.31 and Beta of 0.56 (p's < 0.05). In a multivariable analysis, the association between performance, exertion and pain on the one hand and BASFI-score on the other was assessed; R-square increased to 0.54: the Beta's for exertion and pain during performance were 0.38 and 0.26, respectively; the Beta for performance decreased to 0.19 (p's < 0.05).Conclusions: This study demonstrates that alongside actual performance, patients seem to incorporate exertion and pain in their assessment of perceived physical function on the BASFI questionnaire. Performance-based tests could provide an objective outcome measurement for the evaluation of physical function and give relevant new information in addition to the BASFI questionnaire.

AB - Introduction: Ankylosing Spondylitis (AS) is characterised by limitations in physical function. The Bath Ankylosing Spondylitis Functional Index (BASFI) is considered to be the gold-standard to assess physical function in AS patients. However, the BASFI questionnaire is a self-reported outcome measure and susceptible to subjective interpretation (under- or over-estimation). More objective outcome measures, like performance-based tests, could provide an objective outcome measurement for the evaluation of limitations in physical function. Therefore, the primary aim of this study was to determine the association between performance-based measures and the BASFI questionnaire.Methods: In this cross-sectional study 126 AS patients completed the BASFI questionnaire and eight performance-based tests based on BASFI-items. Each test received three scores: one for performance (time or points) and a score for exertion and pain experienced during performance (using modified Borg-scale and VAS 0-100 mm, respectively). Linear regression analyses were used to assess the associations between the BASFI questionnaire and performance-based tests.Results: The univariable association between performance and BASFI-score was moderate with a R-square of 0.31 and Beta of 0.56 (p's < 0.05). In a multivariable analysis, the association between performance, exertion and pain on the one hand and BASFI-score on the other was assessed; R-square increased to 0.54: the Beta's for exertion and pain during performance were 0.38 and 0.26, respectively; the Beta for performance decreased to 0.19 (p's < 0.05).Conclusions: This study demonstrates that alongside actual performance, patients seem to incorporate exertion and pain in their assessment of perceived physical function on the BASFI questionnaire. Performance-based tests could provide an objective outcome measurement for the evaluation of physical function and give relevant new information in addition to the BASFI questionnaire.

KW - Physical Function

KW - Ankylose Spondylitis

KW - Bath Ankylose Spondylitis Functional Index

KW - Bath Ankylose Spondylitis Metrology Index

KW - Objective Outcome Measurement

U2 - 10.1186/ar3765

DO - 10.1186/ar3765

M3 - Article

C2 - 22401146

AN - SCOPUS:84857979536

SN - 1478-6354

VL - 14

JO - Arthritis Research and Therapy

JF - Arthritis Research and Therapy

IS - 2

M1 - R52

ER -

Moving instead of asking? Performance-based tests and BASFI-questionnaire measure different aspects of physical function in ankylosing spondylitis

Abstract

Keywords

ASJC Scopus subject areas

Documents and Links

Fingerprint

Cite this