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RESEARCH PRODUCT

Structural Validity of the Foot and Ankle Outcome Score for Orthopaedic Pathologies with Rasch Measurement Theory

Henrik SandelinJussi P. RepoOuti IlvesMikko M. UimonenAntti J. SaarinenKrista TapaninahoArja Häkkinen

subject

Quality of lifemedicine.medical_specialtyvalidityPsychometricsCULTURAL-ADAPTATIONStructural validityelämänlaatupsychometric propertiesOutcome (game theory)VALIDATIONleikkaushoitoValidity03 medical and health sciences0302 clinical medicineRaschin malliQuality of lifeSurveys and QuestionnairesmedicineQUALITYHumansOrthopedics and Sports MedicineVERSION030222 orthopedicsRasch modelbusiness.industrydigestive oral and skin physiologyOutcome measuresReproducibility of Resultsfood and beverages030229 sport sciences3126 Surgery anesthesiology intensive care radiologyDifferential item functioningjalatnilkatpsykometriikkaPsychometric propertiesOrthopedicsmedicine.anatomical_structurequality of lifeRATING-SCALEShoitotuloksetvaliditeettimittarit (mittaus)Physical therapyTRANSLATIONAnkleAnklebusinessFoot (unit)

description

Publisher Copyright: © 2021 The Authors A B S T R A C T 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. Thirty-eight of the 42 items had ordered response category thresholds. Three of the 42 items had differential item functioning towards gender. 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 in orthopaedic foot and ankle patients. (c) 2021 The Authors. Published by Elsevier Ltd on behalf of European Foot and Ankle Society. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Peer reviewed

yearjournalcountryeditionlanguage
2022-02-01
http://urn.fi/URN:NBN:fi:jyu-202202171546