Prevalence survey of Carpal Tunnel Syndrome and its related factors by using CTS-6 Evaluation Tools among Motorcycle Taxi Drivers in Bangkok Area

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Thamonwan Danaisawat
Wiroj Jiamjarasrangsi

Abstract

Introduction: Carpal Tunnel Syndrome (CTS) is one of the most common peripheral nerve entrapment syndromes found in working-age population. Work-related risk factors include forceful hand work, repetition, awkward posture of wrists, frequent flexsion and extension, and vibration. Motorcycle taxi drivers are exposed to forceful hand work combined with twisting of the wrist, and vibration on hands and wrists from the handlebar. We recognized the importance of studying the prevalence of CTS in order to provide advices for prevention of the disease to this population. Objective: To survey the prevalence and related factors of CTS. Methods: The samples were 329 motorcycle taxi drivers registered to Thailand Department of Land Transport in Bangkok. The questionnaire consisted of personal factors, work-related factors, and environmental factors. Diagnosis of CTS was made using the CTS-6 Evaluation tool consisting of 2 symptoms and 4 physical examination criterias. The data gathered were analyzed using multiple logistic regression. Results: The prevalence of CTS in the samples were 20.1%. Significant related factors were female gender [OR 7.14 (95% CI 3.18-16.02)], age>40 years old [OR 1.92 (95% CI 1.06-3.49)], past history of prior jobs exposed to risks such as repetition, vibration, and heavy lifting [OR 1.98 (95% CI 1.10-3.55)] and ≥40 fares/day [OR 2.68 (95% CI 1.37-5.23)]. Conclusion: Since the prevalence in this study was significantly high, we suggest that the Department of Land Transport should include an education regarding the disease, its prevention, and early signs as a part of the application or the renewal of Public Motorcycle Driving License.

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นิพนธ์ต้นฉบับ (Original Article)

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