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Reliability and Validity of Fall Efficacy Scale-International in People with Parkinson's Disease during On- and Off-Drug Phases

PURPOSE: Since fear of falling may be one of the main problems in people with Parkinson's disease (PD), its assessment with valid tools is necessary in both drug phases. This study was carried out to investigate the psychometric attributes of the Fall Efficacy Scale-International (FES-I) in peo...

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Autores principales: Mehdizadeh, Maryam, Martinez-Martin, Pablo, Habibi, Seyed-Amirhasan, Fereshtehnejad, Seyed-Mohammad, Abasi, Amirabas, Niazi Khatoon, Javad, Saneii, Seyed Hassan, Taghizadeh, Ghorban
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Hindawi 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6334372/
https://www.ncbi.nlm.nih.gov/pubmed/30719277
http://dx.doi.org/10.1155/2019/6505232
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author Mehdizadeh, Maryam
Martinez-Martin, Pablo
Habibi, Seyed-Amirhasan
Fereshtehnejad, Seyed-Mohammad
Abasi, Amirabas
Niazi Khatoon, Javad
Saneii, Seyed Hassan
Taghizadeh, Ghorban
author_facet Mehdizadeh, Maryam
Martinez-Martin, Pablo
Habibi, Seyed-Amirhasan
Fereshtehnejad, Seyed-Mohammad
Abasi, Amirabas
Niazi Khatoon, Javad
Saneii, Seyed Hassan
Taghizadeh, Ghorban
author_sort Mehdizadeh, Maryam
collection PubMed
description PURPOSE: Since fear of falling may be one of the main problems in people with Parkinson's disease (PD), its assessment with valid tools is necessary in both drug phases. This study was carried out to investigate the psychometric attributes of the Fall Efficacy Scale-International (FES-I) in people with PD, both in On and Off phases. METHODS: One hundred twenty-four patients with PD (mean age ± standard deviation, 60.33 ± 12.59 years) were assessed with the FES-I, both in On- and Off-drug phases. Dimensionality, internal consistency, and test-retest reliability were, respectively, explored by means of factor analysis, Cronbach's alpha, and Intraclass Correlation Coefficient. Convergent validity of FES-I was established with Visual Analog Scale-Fear of Falling, Berg Balance Scale, and Functional Reach Test. Parkinson's Disease Questionnaire-39 and Unified Parkinson Disease Rating Scale-Activities of Daily Living were also applied. Discriminative validity was tested between patients with and without a history of falling. RESULTS: Factor analysis showed two factors for On- and one factor for Off-drug phase. Internal consistency (α = 0.96, On phase; 0.98, Off phase) and test-retest reliability (0.94; 0.91) were satisfactory in both drug phases. There was a moderate/high correlation (r(S) = |0.50–0.70|) between FES-I and Visual Analog Scale-Fear of Falling, Berg Balance Scale, and Functional Reach Test. Parkinson's Disease Questionnaire-39 and Unified Parkinson Disease Rating Scale-Activities of Daily Living were achieved in both drug phases too. The sensitivity of FES-I to discriminate Parkinson's disease with and without falls showed moderate effect size in both phases. CONCLUSION: This study verified that FES-I is unidimensional, reliable, and valid to measure the Fear of Falling during On- and Off-drug phases in people with PD.
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spelling pubmed-63343722019-02-04 Reliability and Validity of Fall Efficacy Scale-International in People with Parkinson's Disease during On- and Off-Drug Phases Mehdizadeh, Maryam Martinez-Martin, Pablo Habibi, Seyed-Amirhasan Fereshtehnejad, Seyed-Mohammad Abasi, Amirabas Niazi Khatoon, Javad Saneii, Seyed Hassan Taghizadeh, Ghorban Parkinsons Dis Research Article PURPOSE: Since fear of falling may be one of the main problems in people with Parkinson's disease (PD), its assessment with valid tools is necessary in both drug phases. This study was carried out to investigate the psychometric attributes of the Fall Efficacy Scale-International (FES-I) in people with PD, both in On and Off phases. METHODS: One hundred twenty-four patients with PD (mean age ± standard deviation, 60.33 ± 12.59 years) were assessed with the FES-I, both in On- and Off-drug phases. Dimensionality, internal consistency, and test-retest reliability were, respectively, explored by means of factor analysis, Cronbach's alpha, and Intraclass Correlation Coefficient. Convergent validity of FES-I was established with Visual Analog Scale-Fear of Falling, Berg Balance Scale, and Functional Reach Test. Parkinson's Disease Questionnaire-39 and Unified Parkinson Disease Rating Scale-Activities of Daily Living were also applied. Discriminative validity was tested between patients with and without a history of falling. RESULTS: Factor analysis showed two factors for On- and one factor for Off-drug phase. Internal consistency (α = 0.96, On phase; 0.98, Off phase) and test-retest reliability (0.94; 0.91) were satisfactory in both drug phases. There was a moderate/high correlation (r(S) = |0.50–0.70|) between FES-I and Visual Analog Scale-Fear of Falling, Berg Balance Scale, and Functional Reach Test. Parkinson's Disease Questionnaire-39 and Unified Parkinson Disease Rating Scale-Activities of Daily Living were achieved in both drug phases too. The sensitivity of FES-I to discriminate Parkinson's disease with and without falls showed moderate effect size in both phases. CONCLUSION: This study verified that FES-I is unidimensional, reliable, and valid to measure the Fear of Falling during On- and Off-drug phases in people with PD. Hindawi 2019-01-02 /pmc/articles/PMC6334372/ /pubmed/30719277 http://dx.doi.org/10.1155/2019/6505232 Text en Copyright © 2019 Maryam Mehdizadeh et al. http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Mehdizadeh, Maryam
Martinez-Martin, Pablo
Habibi, Seyed-Amirhasan
Fereshtehnejad, Seyed-Mohammad
Abasi, Amirabas
Niazi Khatoon, Javad
Saneii, Seyed Hassan
Taghizadeh, Ghorban
Reliability and Validity of Fall Efficacy Scale-International in People with Parkinson's Disease during On- and Off-Drug Phases
title Reliability and Validity of Fall Efficacy Scale-International in People with Parkinson's Disease during On- and Off-Drug Phases
title_full Reliability and Validity of Fall Efficacy Scale-International in People with Parkinson's Disease during On- and Off-Drug Phases
title_fullStr Reliability and Validity of Fall Efficacy Scale-International in People with Parkinson's Disease during On- and Off-Drug Phases
title_full_unstemmed Reliability and Validity of Fall Efficacy Scale-International in People with Parkinson's Disease during On- and Off-Drug Phases
title_short Reliability and Validity of Fall Efficacy Scale-International in People with Parkinson's Disease during On- and Off-Drug Phases
title_sort reliability and validity of fall efficacy scale-international in people with parkinson's disease during on- and off-drug phases
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6334372/
https://www.ncbi.nlm.nih.gov/pubmed/30719277
http://dx.doi.org/10.1155/2019/6505232
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