2026-06-14T03:54:09Zhttps://repisalud.isciii.es/rest/oai/request

oai:repisalud.isciii.es:20.500.12105/139072025-04-23T07:33:54Zcom_20.500.12105_2052com_20.500.12105_2051col_20.500.12105_19608

00925njm 22002777a 4500 dc Taghizadeh, Ghorban author Fereshtehnejad, Seyed-Mohammad author Martínez-Martín, Pablo author Joghataei, Mohammad Taghi author Mahdizadeh, Fatemeh author Sabbaghi, Sajad author Goudarzi, Sepide author Meimandi, Mahsa author Habibi, Seyed-Amirhasan author Mehdizadeh, Maryam author 2021 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. Basic Clin Neurosci. 2021;12(1):69-78. 10.32598/bcn.12.1.882.11 2008-126X Basic and Cclinical Neuroscience 33995929 http://hdl.handle.net/20.500.12105/13907 Diagnostic accuracy Gait Parkinson’s disease Questionnaire Reliability Validity “Off”state Clinimetrics of the Freezing of Gait Questionnaire for Parkinson Disease During the "off" State