Rasch analysis of the 32-item motor function measure in ambulant patients with Duchenne muscular dystrophy

Huang, Meihuan; Chen, Turong; Zhou, Chunming; Wang, Yujuan; Zeng, Hongwu; Xiao, Lu; Cao, Jianguo

doi:10.1177/02692155221135843

Cited by 2 publications

(2 citation statements)

References 28 publications

(42 reference statements)

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“…Nevertheless, D2 and D3 of the MFM must be used with caution with this group of patients. 22 According to Pizzato et al, 5 the 10 MWT can be used as a predictor of gait loss. 5 Those authors found that, between two consecutive tests, if the ratio of increase in time is over 1.25, then the patient would become wheelchair-dependent.…”

Section: Discussionmentioning

confidence: 99%

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Generation of percentile curves for strength and functional abilities for boys with Duchenne muscular dystrophy

et al. 2023

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Introduction/Aims Considering the heterogeneity of the clinical manifestations of Duchenne muscular dystrophy (DMD), it is important to describe their various clinical profiles. Thus, in this study we aimed to develop percentile curves for DMD using a battery of measures to define the patterns of functional abilities, timed tests, muscle strength, and range of motion (ROM). Methods This retrospective data analysis was based on the records of patients with DMD using the Motor Function Measure (MFM) scale, isometric muscle strength (IS), dorsiflexion ROM, 10‐meter walk test (10 MWT), and 6‐minute walk test (6 MWT). Percentile curves (25th, 50th, and 75th percentiles) with MFM, IS, ROM, 10 MWT, and 6 MWT on the y axis and patient age on the x axis were constructed using the generalized additive model for location, scale, and shape, with Box‐Cox power exponential distribution. Results There were records of 329 assessments of patients between 4 and 18 years of age. The MFM percentiles showed a gradual reduction in all dimensions. Muscle strength and ROM percentiles showed that the knee extensors were the most affected from 4 years of age, and dorsiflexion ROM negative values were noted from the age of 8 years. The 10 MWT showed a gradual increase in performance time with age. For the 6 MWT, the distance curve remained stable until 8 years, with a subsequent progressive decline. Discussion In this study we generated percentile curves that can help health professionals and caregivers follow the trajectory of disease progression in DMD patients.

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Section: Discussionmentioning

confidence: 99%

“…In addition, D1 of the MFM is valid, reliable, and provides a unidimensional measure of motor function in ambulatory DMD patients. Nevertheless, D2 and D3 of the MFM must be used with caution with this group of patients 22 …”

Section: Discussionmentioning

confidence: 99%

Generation of percentile curves for strength and functional abilities for boys with Duchenne muscular dystrophy

et al. 2023

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Rasch Analysis of the Chinese Version of the Nociception Coma Scale–Revised in Patients with Prolonged Disorders of Consciousness

Zheng,

Lin,

Huang

et al. 2024

Clin Rehabil

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Objectives The aim of this study was to analyze the Chinese version of the Nociception Coma Scale–Revised in patients with prolonged disorders of consciousness within the framework of Rasch modeling, including investigating the invariance of total scores across different etiologies of disorders of consciousness. Design Prospective psychometric study. Participants Patients with prolonged disorders of consciousness from the Rehabilitation and Neurology units in hospital. Interventions None. Main Outcome Measure The Nociception Coma Scale–Revised was undertaken by trained raters and the Coma Recovery Scale-Revised was used to assess patients’ consciousness. The psychometric properties within the Rasch model including item-person targeting, reliability and separation, item fit, unidimensionality, and differential item functioning were assessed. Results 84 patients with prolonged disorders of consciousness (mean age 53 years; mean injury 5 months; 42 with Minimally Conscious State and 42 with Unresponsive Wakefulness Syndrome) of 252 observations were enrolled in the study. Through the procedure of repeated assessment and differential item function, a lower item bias Rasch set was purified. The Rasch model assumptions were examined and met, with item reliability and validity meeting the recommended threshold. Conclusions The Chinese version of the Nociception Coma Scale–Revised demonstrated unidimensionality, good reliability and separation, and good item fit, but dissatisfied person fit and item-person targeting. The verbal subscale showed a notable discrepancy between person responses and the difficulty of the items, suggesting limited clinical significance.

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Rasch analysis of the 32-item motor function measure in ambulant patients with Duchenne muscular dystrophy

Cited by 2 publications

References 28 publications

Generation of percentile curves for strength and functional abilities for boys with Duchenne muscular dystrophy

Generation of percentile curves for strength and functional abilities for boys with Duchenne muscular dystrophy

Rasch Analysis of the Chinese Version of the Nociception Coma Scale–Revised in Patients with Prolonged Disorders of Consciousness

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