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dc.contributor.authorMultanen, Juhani
dc.contributor.authorYlinen, Jari
dc.contributor.authorKarjalainen, Teemu
dc.contributor.authorIkonen, Joona
dc.contributor.authorHäkkinen, Arja
dc.contributor.authorRepo, Jussi P.
dc.date.accessioned2020-09-18T08:59:23Z
dc.date.available2020-09-18T08:59:23Z
dc.date.issued2020
dc.identifier.citationMultanen, J., Ylinen, J., Karjalainen, T., Ikonen, J., Häkkinen, A., & Repo, J. P. (2020). Structural validity of the Boston Carpal Tunnel Questionnaire and its short version, the 6-Item CTS symptoms scale : a Rasch analysis one year after surgery. <i>BMC Musculoskeletal Disorders</i>, <i>21</i>, Article 609. <a href="https://doi.org/10.1186/s12891-020-03626-2" target="_blank">https://doi.org/10.1186/s12891-020-03626-2</a>
dc.identifier.otherCONVID_42008365
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/71806
dc.description.abstractBackground The Boston Carpal Tunnel Questionnaire (BCTQ) and its shorter version, the Six-Item Carpal Tunnel Symptoms Scale (CTS-6), are widely used for assessing function and/or symptoms in patients with carpal tunnel syndrome. This study examined the structural validity of the BCTQ and CTS-6 among patients who had undergone surgery for treatment of carpal tunnel syndrome. Methods The data for this cross-sectional analysis were obtained from 217 adult patients who had undergone carpal tunnel release surgery 1 year earlier. All patients completed the CTS-6, Symptom Severity Scale (SSS) and Functional Status Scale (FSS) of the BCTQ at 12 months after surgery. The Rasch Measurement Theory (RMT) was applied to investigate the unidimensionality, residual correlation, differential item functioning, scale coverage/targeting, and person separation of the CTS-6, SSS and FSS of the BCTQ. Results The FSS showed unidimensionality and good scale and item fit. All items showed ordered response category thresholds. Eight of the FSS items displayed differential item functioning favoring age or gender. The multidimensional structure of the CTS-6 was absorbed by creating a testlet for frequency of symptoms or testlets for pain and numbness. The testlets supported unidimensionality in the BCTQ SSS. One item in the CTS-6 and two items in the BCTQ SSS showed differential item functioning favoring age or gender. Four items in the BCTQ SSS and two items in the CTS-6 exhibited disordered response category thresholds. Merging of the relevant response categories led to ordered response category thresholds. The person separation indices were 0.73, 0.86 and 0.77 for the CTS-6, BCTQ SSS and FSS, respectively. Conclusions Based on the RMT analysis, the CTS-6 has superior psychometric properties compared to the BCTQ SSS in surgically treated patients. The CTS-6 might be more accurate when separated into item sets measuring pain or numbness. The FSS of the BCTQ has acceptable construct validity, although gender differences at some ages were observed in responses.en
dc.format.mimetypeapplication/pdf
dc.languageeng
dc.language.isoeng
dc.publisherBiomed Central
dc.relation.ispartofseriesBMC Musculoskeletal Disorders
dc.rightsCC BY 4.0
dc.subject.othercarpal tunnel release
dc.subject.otherBoston carpal tunnel questionnaire
dc.subject.othersix-item carpal tunnel symptoms scale
dc.subject.otherRasch analysis
dc.subject.otherpsychometrics
dc.titleStructural validity of the Boston Carpal Tunnel Questionnaire and its short version, the 6-Item CTS symptoms scale : a Rasch analysis one year after surgery
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-202009185892
dc.contributor.laitosLiikuntatieteellinen tiedekuntafi
dc.contributor.laitosFaculty of Sport and Health Sciencesen
dc.contributor.oppiaineFysioterapiafi
dc.contributor.oppiainePhysiotherapyen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.description.reviewstatuspeerReviewed
dc.relation.issn1471-2474
dc.relation.volume21
dc.type.versionpublishedVersion
dc.rights.copyright© The Author(s), 2020
dc.rights.accesslevelopenAccessfi
dc.subject.ysoranteet
dc.subject.ysopsykometriikka
dc.subject.ysoleikkaushoito
dc.subject.ysotuki- ja liikuntaelinten taudit
dc.subject.ysovalidointi
dc.subject.ysomittarit (mittaus)
dc.subject.ysohoitotulokset
dc.format.contentfulltext
jyx.subject.urihttp://www.yso.fi/onto/yso/p809
jyx.subject.urihttp://www.yso.fi/onto/yso/p6328
jyx.subject.urihttp://www.yso.fi/onto/yso/p842
jyx.subject.urihttp://www.yso.fi/onto/yso/p2500
jyx.subject.urihttp://www.yso.fi/onto/yso/p20652
jyx.subject.urihttp://www.yso.fi/onto/yso/p21210
jyx.subject.urihttp://www.yso.fi/onto/yso/p25941
dc.rights.urlhttps://creativecommons.org/licenses/by/4.0/
dc.relation.doi10.1186/s12891-020-03626-2
jyx.fundinginformationThis work was supported by the Research Committee of the Kuopio University Hospital Catchment Area for State Research Funding.


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