A1 Journal article (refereed)
Structural Validity of the Foot and Ankle Outcome Score for Orthopaedic Pathologies with Rasch Measurement Theory (2021)


Tapaninaho, K., Saarinen, A. J., Ilves, O., Uimonen, M. M., Häkkinen, A. H., Sandelin, H., & Repo, J. P. (2021). Structural Validity of the Foot and Ankle Outcome Score for Orthopaedic Pathologies with Rasch Measurement Theory. Foot and Ankle Surgery, In Press. https://doi.org/10.1016/j.fas.2021.03.005


JYU authors or editors


Publication details

All authors or editors: Tapaninaho, Krista; Saarinen, Antti J.; Ilves, Outi; Uimonen, Mikko M.; Häkkinen, Arja H.; Sandelin, Henrik; Repo, Jussi P.

Journal or series: Foot and Ankle Surgery

ISSN: 1268-7731

eISSN: 1460-9584

Publication year: 2021

Volume: In Press

Publisher: Elsevier

Publication country: United Kingdom

Publication language: English

DOI: https://doi.org/10.1016/j.fas.2021.03.005

Publication open access: Openly available

Publication channel open access: Partially open access channel


Abstract

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 the FAOS using Rasch Measurement Theory.

Methods
FAOS scores were obtained from 218 consecutive patients who received operative treatment for foot and ankle conditions. The FAOS data were fitted into the Rasch model and person separation index (PSI) calculated.

Results
All the five subscales provided good coverage and targeting. Three subscales presented unidimensional structure. After testlet formation, all subscales were unidimensional. All subscales showed sufficient fit to the Rasch model. PSI ranged from 0.73 to 0.94 for the subscales.

Conclusions
The Finnish version of the FAOS shows acceptable structural validity for assessing complaints among orthopaedic foot and ankle patients.


Keywords: surgical treatment; legs; ankles; treatment outcomes; quality of life; psychometrics; measuring instruments (indicators); validity; Rasch model

Free keywords: quality of life; psychometric properties; validity


Contributing organizations


Ministry reporting: No, publication in press

Preliminary JUFO rating: 1


Last updated on 2021-07-07 at 17:55