Clinimetrics of the Freezing of Gait Questionnaire for Parkinson Disease During the “off” State
Introduction: Freezing of gait, a common PD motor symptom, could increase the risk of falling. This study aimed to investigate the clinimetric attributes of the Freezing of Gait Questionnaire (FOGQ) for people with Parkinson disease in the “off” state. Methods: A total of 115 patients with Parkinson...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Iran University of Medical Sciences
2021-01-01
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| Series: | Basic and Clinical Neuroscience |
| Subjects: | |
| Online Access: | http://bcn.iums.ac.ir/article-1-1977-en.html |
| _version_ | 1827331661482688512 |
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| author | Ghorban Taghizadeh Seyed Mohammad Fereshtehnejad Pablo Martinez-Martin Mohammad Taghi Joghataei Fatemeh Mahdizadeh Sajad Sabbaghi Sepide Goudarzi Mahsa Meimandi Sayed Amir Hasan Habibi Maryam Mehdizadeh |
| author_facet | Ghorban Taghizadeh Seyed Mohammad Fereshtehnejad Pablo Martinez-Martin Mohammad Taghi Joghataei Fatemeh Mahdizadeh Sajad Sabbaghi Sepide Goudarzi Mahsa Meimandi Sayed Amir Hasan Habibi Maryam Mehdizadeh |
| author_sort | Ghorban Taghizadeh |
| collection | DOAJ |
| description | Introduction: Freezing of gait, a common PD motor symptom, could increase the risk of falling. This study aimed to investigate the clinimetric attributes of the Freezing of Gait Questionnaire (FOGQ) for people with Parkinson disease in the “off” state.
Methods: A total of 115 patients with Parkinson disease (PD; mean age, 60.25 years) were included. Acceptability, internal consistency (by the Cronbach alpha, and test-retest by Intraclass Correlation [ICC]), and reliability of the Persian-translated version of the FOGQ were examined. Dimensionality was estimated by Exploratory Factor Analysis (EFA). Fall efficacy scale-international, unified Parkinson disease rating scale-II, Berg balance scale, functional reach test, and Parkinson disease questionnaire-39 were applied to determine the convergent validity. Diagnostic accuracy for obtaining optimal cutoff point, separating faller and non-faller groups, was analyzed by Receiver Operating Characteristics (ROC) curve analysis and Area Under the Curve (AUC). All tests were carried out in an “off” state.
Results: The Cronbach alpha was high (α=0.92). The test-retest showed high reliability (ICC=0.89). The FOGQ was unidimensional according to the EFA and had acceptable convergent validity with moderate to high correlation with other clinical scales. The optimal cutoff point to discriminate fallers from non-fallers during the “off” state was 9/10, with an AUC of 0.92.
Conclusion: Our results suggest that the FOGQ has appropriate reliability, validity, and discriminative ability for measuring FOG in patients with PD during the “off” state. |
| first_indexed | 2024-03-07T16:40:30Z |
| format | Article |
| id | doaj.art-89ccc21ea2d7440286f5dffb7889033b |
| institution | Directory Open Access Journal |
| issn | 2008-126X 2228-7442 |
| language | English |
| last_indexed | 2024-03-07T16:40:30Z |
| publishDate | 2021-01-01 |
| publisher | Iran University of Medical Sciences |
| record_format | Article |
| series | Basic and Clinical Neuroscience |
| spelling | doaj.art-89ccc21ea2d7440286f5dffb7889033b2024-03-03T08:32:11ZengIran University of Medical SciencesBasic and Clinical Neuroscience2008-126X2228-74422021-01-011216978Clinimetrics of the Freezing of Gait Questionnaire for Parkinson Disease During the “off” StateGhorban Taghizadeh0Seyed Mohammad Fereshtehnejad1Pablo Martinez-Martin2Mohammad Taghi Joghataei3Fatemeh Mahdizadeh4Sajad Sabbaghi5Sepide Goudarzi6Mahsa Meimandi7Sayed Amir Hasan Habibi8Maryam Mehdizadeh9 Department of Occupational Therapy, Rehabilitation Research Center, School of Rehabilitation Sciences, Iran University of Medical Science, Tehran, Iran. Department of Neurobiology, Division of Clinical Geriatrics, Care Sciences and Society (NVS), Karolinska Institutet, Stockholm, Sweden. National Center of Epidemiology and CIBERNED, Carlos III Institute of Health, Madrid, Spain. Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran. Neuromuscular Research Center, Semnan University of Medical Sciences, Semnan, Iran. Department of Occupational Therapy, School of Rehabilitation Sciences, University of Social Welfare Rehabilitation, Tehran, Iran. Department of Pharmacology and Toxicology, Faculty of Pharmacy, Tehran University of Medical Science, Tehran, Iran. Department of Occupational Therapy, School of Rehabilitation Sciences, Iran University of Medical Science, Tehran, Iran. Department of Neurology, Rasoul Akram Hospital, Iran University of Medical Science, Tehran, Iran. Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran. Introduction: Freezing of gait, a common PD motor symptom, could increase the risk of falling. This study aimed to investigate the clinimetric attributes of the Freezing of Gait Questionnaire (FOGQ) for people with Parkinson disease in the “off” state. Methods: A total of 115 patients with Parkinson disease (PD; mean age, 60.25 years) were included. Acceptability, internal consistency (by the Cronbach alpha, and test-retest by Intraclass Correlation [ICC]), and reliability of the Persian-translated version of the FOGQ were examined. Dimensionality was estimated by Exploratory Factor Analysis (EFA). Fall efficacy scale-international, unified Parkinson disease rating scale-II, Berg balance scale, functional reach test, and Parkinson disease questionnaire-39 were applied to determine the convergent validity. Diagnostic accuracy for obtaining optimal cutoff point, separating faller and non-faller groups, was analyzed by Receiver Operating Characteristics (ROC) curve analysis and Area Under the Curve (AUC). All tests were carried out in an “off” state. Results: The Cronbach alpha was high (α=0.92). The test-retest showed high reliability (ICC=0.89). The FOGQ was unidimensional according to the EFA and had acceptable convergent validity with moderate to high correlation with other clinical scales. The optimal cutoff point to discriminate fallers from non-fallers during the “off” state was 9/10, with an AUC of 0.92. Conclusion: Our results suggest that the FOGQ has appropriate reliability, validity, and discriminative ability for measuring FOG in patients with PD during the “off” state.http://bcn.iums.ac.ir/article-1-1977-en.htmlparkinson's diseasegaitquestionnairevalidityreliabilitydiagnostic accuracy“off” state |
| spellingShingle | Ghorban Taghizadeh Seyed Mohammad Fereshtehnejad Pablo Martinez-Martin Mohammad Taghi Joghataei Fatemeh Mahdizadeh Sajad Sabbaghi Sepide Goudarzi Mahsa Meimandi Sayed Amir Hasan Habibi Maryam Mehdizadeh Clinimetrics of the Freezing of Gait Questionnaire for Parkinson Disease During the “off” State Basic and Clinical Neuroscience parkinson's disease gait questionnaire validity reliability diagnostic accuracy “off” state |
| title | Clinimetrics of the Freezing of Gait Questionnaire for Parkinson Disease During the “off” State |
| title_full | Clinimetrics of the Freezing of Gait Questionnaire for Parkinson Disease During the “off” State |
| title_fullStr | Clinimetrics of the Freezing of Gait Questionnaire for Parkinson Disease During the “off” State |
| title_full_unstemmed | Clinimetrics of the Freezing of Gait Questionnaire for Parkinson Disease During the “off” State |
| title_short | Clinimetrics of the Freezing of Gait Questionnaire for Parkinson Disease During the “off” State |
| title_sort | clinimetrics of the freezing of gait questionnaire for parkinson disease during the off state |
| topic | parkinson's disease gait questionnaire validity reliability diagnostic accuracy “off” state |
| url | http://bcn.iums.ac.ir/article-1-1977-en.html |
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