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Comparison of the Self-Reported Foot and Ankle Score (SEFAS) and the American Orthopedic Foot and Ankle Society Score (AOFAS)
Lund University, Sweden; Lund University, Sweden; Hand Foot Surg Centre, Sweden.
Lund University, Sweden; Lund University, Sweden.
Lund University, Sweden; Lund University, Sweden.
Linköping University, Department of Medical and Health Sciences, Division of Cardiovascular Medicine. Linköping University, Faculty of Health Sciences.
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2014 (English)In: Foot & ankle international, ISSN 1071-1007, E-ISSN 1944-7876, Vol. 35, no 10, 1031-1036 p.Article in journal (Refereed) Published
Abstract [en]

Background: The Self-reported Foot and Ankle Score (SEFAS) is a patient-reported outcome measure, while the American Orthopedic Foot and Ankle Society Score (AOFAS) is a clinician-based score, both used for evaluation of foot and ankle disorders. The purpose of this study was to compare the psychometric properties of these 2 scoring systems. Methods: A total of 95 patients with great toe disorders and 111 patients with ankle or hindfoot disorders completed the 2 scores before and after surgery. We evaluated time to complete the scores in seconds, correlations between scores with Spearmans correlation coefficient (r(s)), floor and ceiling effects by proportion of individuals who reached the minimum or maximum values, test-retest reliability and interobserver reliability by intraclass correlation coefficient (ICC), internal consistency by Cronbachs coefficient alpha (CA), and responsiveness by effect size (ES). Data are provided as correlation coefficients, means, and standard deviations. Results: SEFAS was completed 3 times faster than AOFAS. The scores correlated with an r(s) of .49 for great toe disorders and .67 for ankle/hindfoot disorders (both P less than .001). None of the scores had any floor or ceiling effect. SEFAS test-retest ICC values measured 1 week apart were .89 for great toe and .92 for ankle/hindfoot disorders, while the corresponding ICC values for AOFAS were .57 and .75. AOFAS interobserver reliability ICC values were .70 for great toe and .81 for ankle/hindfoot disorders. SEFAS CA values were .85 for great toe and .86 for ankle/hindfoot disorders, while the corresponding CA values for AOFAS were .15 and .42. SEFAS ES values were 1.15 for great toe and 1.39 for ankle/hindfoot disorders, while the corresponding ES values for AOFAS were 1.05 and 1.73. Conclusion: As SEFAS showed similar or better outcome in our tests and was completed 3 times faster than AOFAS, we recommend SEFAS for evaluation of patients with foot and ankle disorders.

Place, publisher, year, edition, pages
SAGE Publications (UK and US): 12 month Embargo , 2014. Vol. 35, no 10, 1031-1036 p.
Keyword [en]
ankle; AOFAS; comparison; foot; hindfoot; reliability; responsiveness; SEFAS; score; validity
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Clinical Medicine
Identifiers
URN: urn:nbn:se:liu:diva-113029DOI: 10.1177/1071100714543647ISI: 000345189500011PubMedID: 25015390OAI: oai:DiVA.org:liu-113029DiVA: diva2:778911
Available from: 2015-01-12 Created: 2015-01-08 Last updated: 2017-12-05

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Brudin, Lars

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