Cross-cultural adaption and validation of simplified Chinese version of the lower extremity function scale in patients with knee osteoarthritis

Xu, Ling; Wang, Chen; Zhang, Chen; Feng, Xinzhe; Tong, Wenwen

doi:10.1007/s10067-020-05077-5

Cited by 3 publications

(18 citation statements)

References 31 publications

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“…The ICC values for individual items were in the 0.78 to 0.97 range, while the ICC for the Srb-LEFS scale was 0.99, concurring with the previously reported results. 10,[12][13][14][15] These findings are also supported by the systematic review conducted by Mehta et al 23 indicating that the ICC values for the LEFS questionnaire typically range from 0.85 to 0.99. The internal consistency of the Srb-LEFS questionnaire (α = 0.95) is also in accordance with the values reported in pertinent literature.…”

Section: Discussionsupporting

confidence: 54%

“…The internal consistency of the Srb-LEFS questionnaire (α = 0.95) is also in accordance with the values reported in pertinent literature. 10,[13][14][15] The construct validity of the Srb-LEFS was established through factor analysis, which revealed that it is a two-dimensional questionnaire (eigenvalue >1), even though the original English version is one-dimensional. 20 The first and the second principal component explained 51.7% and 13.8% of the variance, while their respective factor loadings were in the 0.51 to 0.88 and 0.43 to 0.97 range.…”

Section: Discussionmentioning

confidence: 99%

“…The SF-36-RAND is widely used in validation studies for comparison with other instruments 10,20,26 including the original 20 and other versions of LEFS. 10,13,27 In previous validation studies involving patients with knee OA, WOMAC or KOOS were typically adopted to examine criterion validity. 10,13,28 However, as the instrument developed and validated by Lequesne et al 11 was specifically designed for use in older individuals, it was used in this work.…”

Section: Discussionmentioning

confidence: 99%

“…9 Reliable and validated questionnaires are particularly valuable for monitoring disease progression, as timely detection of changes allows treatment to be initiated or modified accordingly. 9,10 For this purpose, WOMAC (Western Ontario and McMaster Universities osteoarthritis index), KOOS (Knee injury and Osteoarthritis Outcome Score), ICOAP (Measure of intermittent and constant osteoarthritis pain), 9 Lequesne index, 11 OKS (Oxford Knee Score), and LEFS (Lower Extremity Functional Score) are typically used. 12 However, unlike the WOMAC-PF subscale, which assesses physical function and cannot detect the difference between pain and function-the LEFS enables such differentiation.…”

mentioning

confidence: 99%

“…13 Moreover, the LEFS has been validated for use in patients with various musculoskeletal disorders of the lower extremities, 14,15 including knee OA. 10,12,13 Because the LEFS is currently not available in the Serbian language, the aims of the present study were to validate its cross-culturally adapted version for use in the Serbian-speaking population and to assess its test-retest reliability and internal consistency, as well as concurrent, convergent, and construct validity, with the view of using this instrument for obtaining patient-reported outcome measures from postmenopausal women with knee OA.…”

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confidence: 99%

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Cross-cultural validation of the Lower Extremity Functional Scale in Serbian postmenopausal women with knee osteoarthritis

et al. 2023

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Objective Translation and cross-cultural validation of the Serbian version of the Lower Extremity Functional Scale (Srb-LEFS). Methods This prospective cross-sectional study initially included 186 postmenopausal women aged 60 to 75 years who underwent an x-ray examination of both knees, along with body mass, body height, waist circumference, knee range of motion, and blood pressure measurements. The laboratory analyses included the evaluation of fasting glucose levels and lipid profile. All participants completed the LEFS, Lequesne index, and 36-Item Short-Form Survey-RAND. Results The analyses revealed good internal consistency (α = 0.95), good test-retest reliability, and a two-factor structure of the Srb-LEFS. Concurrent validity analysis confirmed a significant positive correlation between Srb-LEFS scores and the 36-Item Short-Form Survey-RAND Physical Functioning subscale (r = 0.889, P < 0.0001), the Lequesne index (r = −0.976, P < 0.0001), and the Numeric Rating Scale for pain (r = −0.762, P < 0.0001). Convergent validity analyses revealed a statistically significant negative correlation between the Srb-LEFS scores and age (r = −0.25, P = 0.006), body mass index (r = −0.31, P < 0.01), and waist circumference (r = −0.37, P < 0.0001). The Srb-LEFS scores were statistically significantly higher among participants that reported moderate physical activity levels, as well as those that had fewer comorbidities, minor structural knee damage, greater knee range of motion, and greater quadriceps femoris muscle strength. Conclusions The Serbian version of the LEFS is feasible, valid, and reliable for use in both clinical practice and clinical studies to assess self-reported physical functioning in older individuals with knee osteoarthritis.

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Section: Discussionsupporting

confidence: 54%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

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confidence: 99%

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Cross-cultural validation of the Lower Extremity Functional Scale in Serbian postmenopausal women with knee osteoarthritis

et al. 2023

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Psychometric Analysis of the questionnaires for the assessment of lower limbs available in Italian version: a systematic review

Barni

Carrasco-Vega

Martín-Martín

et al. 2023

Preprint

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Introduction The present study aims to analyze the structural and psychometric properties of the questionnaires published in Italian to evaluate the lower limbs. Material and Methods two blinded researcher performed a literature searches on the databases: Pubmed, Scopus, Cochrane, Dialnet, Cinahl, Embase, and PEDro databases. For the Keywords was using the Boolean operators "OR" and "AND": lower limb, hip, knee, foot and ankle, questionnaire, Italian, psychometric, validity and Validation. In each of the selected articles, the structural characteristics and, secondly, the psychometric characteristics were analysed. Results A great heterogeneity is observed in the number of items that made up each questionnaire, ranging between 4 and 42; most of the questionnaires are completed in less than 10 min, with some exceptions. Half of the selected questionnaires (16/32) presented subcategories. The reliability of the vast majority of the questionnaires was good or excellent. The criterion validity was very heterogeneous among the questionnaires identified. The construct validity was calculated at 4/32, while the sensitivity and the Standard error measurement (SEM) were 8/32, respectively. Conclusion The Italian versions of the questionnaires studied to evaluate the lower limbs show good essential structural and psychometric characteristics, also comparable to versions in other languages.

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Defining Region and Duration-Specific Substantial Clinical Benefit Values for the Simplified Chinese Lower Extremity Functional Scale

Zhang,

Gao,

et al. 2024

Preprint

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Background A single substantial clinical benefit (SCB) value for the Simplified Chinese Lower Extremity Functional Scale (SC-LEFS) that can be applied to those with lower extremity musculoskeletal injuries is available. However, unique SCB values defined by specific body region and symptom duration may enhance the precision of the SC-LEFS in clinical assessments. Methods This study aim to determine unique SCB values for the SC-LEFS based on symptom duration and body region. Patients 18–50 years of age referred to physical therapy with a non-arthritic musculoskeletal injury to the knee or ankle/foot completed the SC-LEFS at initial assessment and 4-weeks follow-up. Demographic information, including duration of symptoms was also obtained. Patients were classified into “improved” and “not improved” groups based on self-report after 4-weeks of physical therapy. SCB values were determined to best distinguish between the two groups. Receiver operator characteristic (ROC) curve analysis defined the sensitivity and specificity for these SCB values. Results Three hundred and thirteen patients with a mean age of 33.7 (SD 9.3) years were included in the knee region analysis and 354 patients with a mean age of 32.9 (SD 9.4) years in the ankle/foot region analysis. For those with knee injuries, SCB values of 9.5 and 5.5 were found for patients with symptom duration ≤ 3 months and symptom duration > 3 months, respectively. For those with ankle/foot injuries, SCB values 12.5 and 8.5 were found for patients with symptom duration ≤ 3 months and symptom duration > 3 months, respectively. The sensitivity and specificity for these SCB values ranged from 0.67 to 0.72 and from 0.66 to 0.68, respectively, with area under the cures (AUC) being between 0.67 to 0.72. All 95% confidence intervals for AUC were greater than 0.50, indicating adequate accuracy. Conclusion This study determined specific SCB values for the SC-LEFS after four weeks of physical therapy based on region of injury and symptom duration. These unique values may better allow clinicians to distinguish those “improved” from “not improved” in Chinese-speaking patients with non-arthritic musculoskeletal knee, ankle, or foot injuries. Trial registration: This project was registered with the Chinese Clinical Trial Registry (ChiCTR2100052104) on 2021-10-17.

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Cross-cultural adaption and validation of simplified Chinese version of the lower extremity function scale in patients with knee osteoarthritis

Cited by 3 publications

References 31 publications

Cross-cultural validation of the Lower Extremity Functional Scale in Serbian postmenopausal women with knee osteoarthritis

Cross-cultural validation of the Lower Extremity Functional Scale in Serbian postmenopausal women with knee osteoarthritis

Psychometric Analysis of the questionnaires for the assessment of lower limbs available in Italian version: a systematic review

Defining Region and Duration-Specific Substantial Clinical Benefit Values for the Simplified Chinese Lower Extremity Functional Scale

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