Reliability and Validity of the Turkish Version of the 6-item Carpal Tunnel Syndrome Symptoms Scale

Study Overview
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Brief Summary
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Carpal tunnel syndrome (CTS) is a common condition that affects the median nerve that usually cause numbness, tingling, pain, and weakness in the hand and fingers. While definitive diagnosis is made with nerve conduction studies, the patient's history and physical examination findings lead the clinician to the diagnosis of CTS. Using factor analysis and item response theory methodology, Atroshi et al. developed a short 6-item version of the symptom severity scale to ease respondent burden while maintaining the psychometric properties of the Boston Carpal Tunnel Questionnaire. It has been demonstrated that the 6-item CTS Symptom Scale has good reliability, validity and responsiveness. The aim of this study was to evaluate the reliability and construct validity of the Turkish version of the 6-item CTS symptoms scale for CTS.

Detailed Description
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Carpal tunnel syndrome (CTS) is a common condition that affects the median nerve that usually cause numbness, tingling, pain, and weakness in the hand and fingers. While definitive diagnosis is made with nerve conduction studies, the patient's history and physical examination findings lead the clinician to the diagnosis of CTS. The use of patient-completed disease-specific scales is increasing in clinical research and patient follow-up. Various scales have been developed to question symptoms related to hand problems. The Boston Carpal Tunnel Questionnaire and the 6-item CTS Symptom Scale are the scales that have been shown to be used to assess symptom severity and for diagnostic screening. Using factor analysis and item response theory methodology, Atroshi et al. developed a short 6-item version of the symptom severity scale to ease respondent burden while maintaining the psychometric properties of the Boston Carpal Tunnel Questionnaire . It has been demonstrated that the 6-item CTS Symptom Scale has good reliability, validity and responsiveness. The aim of this study was to evaluate the reliability and construct validity of the Turkish version of the 6-item CTS symptoms scale for CTS.

Official Title
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Reliability and Validity of the Turkish Version of the 6-item Carpal Tunnel Syndrome Symptoms Scale

Conditions
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Carpal Tunnel Syndrome, Symptoms and Signs

Intervention / Treatment
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* Diagnostic Test: 6-item Carpal Tunnel Syndrome Symptoms Scale


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: presence of numbness or tingling in at least two radial side fingers, a positive Phalen's test result, symptoms lasting more than three months consistent nerve conduction study with CTS. Exclusion Criteria: those with no electrophysiological evidence of CTS, diabetes or other metabolic diseases, any other inflammatory diseases.

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Arms and Interventions

| Intervention/Treatment |
| --- |
|Diagnostic Test: 6-item Carpal Tunnel Syndrome Symptoms Scale|6-item Carpal Tunnel Syndrome Symptoms Scale is a self-reported 6 item questionnaire.|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| 6-item CTS Symptom Scale (CTS-6) | The CTS-6 is a scale designed to measure the severity of CTS symptoms. It consists of six items, five of which are similar to those on the symptom severity subscale of the Boston CTS Scale, while the sixth item is a combination of two items from the same subscale. | baseline | 
| Boston Carpal Tunnel Questionnaire (BCTQ) | The BCTQ consists of two subscales, the Symptom Severity Scale and the Functional Status Scale. The Functional Status Scale contains eight items assessing activities such as writing, buttoning clothes, holding a book while reading, grasping a telephone handle, opening a jar, doing housework, carrying grocery bags, bathing and dressing whereas the 11-item Symptom Severity Scale assesses pain, paresthesia, numbness, weakness, nocturnal symptoms and grip difficulty. | baseline | 
| The Michigan Hand Outcomes Questionnaire (MHQ) | MHQ is a standardized instrument designed to quantify outcomes in patients with a range of hand conditions. The MHQ consists of 6 subscales: hand function, activities of daily living, pain, satisfaction, aesthetics and work performance. A cumulative score is calculated to provide an indication of overall function. | baseline | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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carpal tunnel syndrome, Boston Carpal Tunnel Questionnaire, validity, Turkish adaptation, reliability, 6-item Carpal Tunnel Syndrome Symptoms Scale