Cross-cultural adaptation and measurement properties testing of the Iconographical Falls Efficacy Scale (Icon-FES)

Author(s)

Franco, Marcia Rodrigues ^[1] ; Pinto, Rafael Zambelli ^[2] ; Delbaere, Kim ^[3] ; Eto, Bianca Yumie ^[1] ; Faria, Maira Sgobbi ^[1] ; Aoyagi, Giovana Ayumi ^[1] ; Steffens, Daniel ^{[4, 5]} ; Pastre, Carlos Marcelo ^[1]

Affiliation

^[1] Univ Estadual Paulista UNESP, Fac Ciencias & Tecnol, Dept Fisioterapia, Rua Roberto Simonsen 305, BR-19060900 Presidente Prudente, SP - Brazil

^[2] Univ Fed Minas Gerais UFMG, Dept Fisioterapia, Belo Horizonte, MG - Brazil

^[3] Univ New South Wales, Neurosci Res Australia Neura, Sydney, NSW - Australia

^[4] Univ Sydney, Sydney Med Sch, Sydney, NSW - Australia

^[5] RPAH, Surg Outcomes Res Ctr SOuRCe, Sydney, NSW - Australia

• Document type: Journal article
• Source: BRAZILIAN JOURNAL OF PHYSICAL THERAPY; v. 22, n. 4, p. 291-303, JUL-AUG 2018.
• Web of Science Citations: 0

Abstract

Background: The Iconographical Falls Efficacy Scale (Icon-FES) is an innovative tool to assess concern of falling that uses pictures as visual cues to provide more complete environmental contexts. Advantages of Icon-FES over previous scales include the addition of more demanding balance-related activities, ability to assess concern about falling in highly functioning older people, and its normal distribution. Objective: To perform a cross-cultural adaptation and to assess the measurement properties of the 30-item and 10-item Icon-FES in a community-dwelling Brazilian older population. Methods: The cross-cultural adaptation followed the recommendations of international guidelines. We evaluated the measurement properties (i.e. internal consistency, test-retest reproducibility, standard error of the measurement, minimal detectable change, construct validity, ceiling/floor effect, data distribution and discriminative validity), in 100 community-dwelling people aged >= 60 years. Results: The 30-item and 10-item Icon-FES-Brazil showed good internal consistency (alpha and omega >0.70) and excellent intra-rater reproducibility (ICC2,1 = 0.96 and 0.93, respectively). According to the standard error of the measurement and minimal detectable change, the magnitude of change needed to exceed the measurement error and variability were 7.2 and 3.4 points for the 30-item and 10-item Icon-FES, respectively. We observed an excellent correlation between both versions of the Icon-FES and Falls Efficacy Scale - International (rho = 0.83, p < 0.001 {[}30-item version]; 0.76, p < 0.001 {[}10-item version]). Icon-FES versions showed normal distribution, no floor/ceiling effects and were able to discriminate between groups relating to fall risk factors. Conclusion: Icon-FES-Brazil is a semantically and linguistically appropriate tool with acceptable measurement properties to evaluate concern about falling among the community-dwelling older population. (C) 2018 Associacao Brasileira de Pesquisa e Pos-Graduacao em Fisioterapia. Published by Elsevier Editora Ltda. All rights reserved. (AU)

• FAPESP's process: 16/15697-5 - Evaluation of the psychometric properties of the Iconographical Falls Efficacy Scale questionnaire (Icon- FES)
• Grantee: Maíra Sgobbi de Faria
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• FAPESP's process: 15/23884-7 - Cross-cultural adaptation and evaluation of the psychometric properties of the Iconographical Falls Efficacy Scale (Icon-FES) among elderly Brazilians
• Grantee: Bianca Yumie Eto
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• FAPESP's process: 17/15539-3 - Association between fear of falling and physical activity levels among older people living in the community
• Grantee: Giovana Ayumi Aoyagi
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• FAPESP's process: 15/07704-9 - Effects of senior dance on risk factors for falls in older adults: a randomised controlled clinical trial
• Grantee: Marcia Rodrigues Franco Zambelli
• Support Opportunities: Scholarships in Brazil - Post-Doctoral