Psychometric Properties of the Scoliosis Research Society Questionnaire (Version 22r) Domains Among Adults With Spinal Deformity : A Rasch Measurement Theory Analysis
Kyrölä, K., Hiltunen, S., Uimonen, M. M., Ylinen, J., Häkkinen, A., & Repo, J. P. (2022). Psychometric Properties of the Scoliosis Research Society Questionnaire (Version 22r) Domains Among Adults With Spinal Deformity : A Rasch Measurement Theory Analysis. Neurospine, 19(2), 422-433. https://doi.org/10.14245/ns.2143354.677
© 2022 the Korean Spinal Neurosurgery Society
Objective: Adults with degenerative spinal deformity (ASD) have lower health-related quality of life (HRQL) compared to the general population. Applying Rasch Measurement Theory (RMT), this study tested the revised Scoliosis Research Society-22 (SRS-22r) HRQL instrument among symptomatic adult patients with degenerative spinal disorders and varying degrees of ASD. Methods: SRS-22r data from 637 outpatient spine clinic patients with degenerative spine conditions were investigated for unidimensionality, item/scale fit, differential item functioning (DIF), scale coverage/targeting, and person separation index (PSI) using RMT. Results: Unidimensionality of the SRS-22r was not supported for either the total score or for three of its five domains. Item fit was acceptable for 11/22 items. The individual domains showed good coverage despite the degree of structural disorders. Ordered thresholds were achieved by merging response categories in some of the items. DIF towards age or sex was found in 11/22 items and in some domain items. The PSI exceeded 0.7 for the SRS-22r total score. Conclusion: The individual domain scores of the SRS-22r perform better than the total score providing good coverage and targeting among patients with ASD. Refinements of items and domains may improve the structural validity of the instrument to meet the criteria for measuring ASD patients, even when multidimensionality persists. ...
PublisherThe Korean Spinal Neurosurgery Society
Publication in research information system
MetadataShow full item record
- Liikuntatieteiden tiedekunta 
Additional information about fundingThis study received no specific grant from any funding agency in the public, commercial, or not-for-profit sectors
Showing items with similar title or keywords.
Structural Validity of the Foot and Ankle Outcome Score for Orthopaedic Pathologies with Rasch Measurement Theory Tapaninaho, Krista; Saarinen, Antti J.; Ilves, Outi; Uimonen, Mikko M.; Häkkinen, Arja H.; Sandelin, Henrik; Repo, Jussi P. (Elsevier, 2022)Background The Foot and Ankle Outcome Score (FAOS) is one of the most frequently used patient-reported outcome measures for foot and ankle conditions. The aim is to test the structural validity of the Finnish version of ...
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 Multanen, Juhani; Ylinen, Jari; Karjalainen, Teemu; Ikonen, Joona; Häkkinen, Arja; Repo, Jussi P. (Biomed Central, 2020)Background 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 ...
Aunola, Kaisa; Sorkkila, Matilda; Tolvanen, Asko (Wiley-Blackwell, 2020)The aim of the present study was to validate the Finnish version of the Parental Burnout Assessment (PBA) using data from 1,688 Finnish parents (91\% mothers) living in Finland with at least one child living at home. ...
Spinopelvic changes based on the simplified SRS-Schwab adult spinal deformity classification: relationships with disability and health-related quality of life in adult patients with prolonged degenerative spinal disorders Kyrölä, Kati; Repo, Jussi; Mecklin, Jukka-Pekka; Ylinen, Jari; Kautiainen, Hannu; Häkkinen, Arja (Wolters Kluwer Health, Inc, 2018)Study Design. Cross-sectional, observational study. Objective. To study the occurrence of sagittal malalignment, the adaptability of a simplified sagittal modifiers grading of the Scoliosis Research Society (SRS)-Schwab ...
Psychometric properties of the 10-item Connor–Davidson resilience scale among Finnish older adults Tourunen, Anu; Siltanen, Sini; Saajanaho, Milla; Koivunen, Kaisa; Kokko, Katja; Rantanen, Taina (Routledge, 2021)Objectives: Resilience, the ability to bounce back after adverse events may be an important factor in active aging. The 10-item version of the Connor–Davidson Resilience Scale (CD-RISC10) seems suitable for aging research ...