Department of Community Medicine, Universiti Sains Malaysia, Kubang Kerian, Malaysia.
Department of Rehabilitation, Universiti Sains Malaysia, Kubang Kerian, Malaysia.
J Occup Health. 2019 Nov;61(6):498-507. doi: 10.1002/1348-9585.12078. Epub 2019 Jul 30.
Prolonged exposure to hand-arm vibration is associated with a disorder of the vascular, neurological, and musculoskeletal systems of the upper limb known as hand-arm vibration syndrome (HAVS). Currently, the evidence of HAVS in tropical environments is limited.
To determine the prevalence and severity of HAVS among tyre shop workers in Kelantan, Malaysia.
A cross-sectional study involving 200 tyre shop workers from two districts in Kelantan was performed. Part one data were collected at the field using questionnaire, and hand-arm vibration was measured. Part two involved a set of hand clinical examinations. The workers were divided into high (≥5 m s ) and low/moderate (<5 m s ) exposure group according to their 8-hr time weighted average [A(8)] of vibration exposure. The differences between the two exposure group were then compared.
The prevalence of the vascular, neurological, and musculoskeletal symptoms was 12.5% (95% CI 10.16 to 14.84), 37.0% (95% CI 30.31 to 43.69), and 44.5% (95% CI 37.61 to 51.38) respectively. When divided according to their exposure statuses, there was a significant difference in the prevalence of HAVS for all three components of vascular, neurological, and musculoskeletal (22.68% vs 2.91%, 62.89% vs 12.62% and 50.52% and 38.83%) respectively. All the clinical examinations findings also significantly differed between the two groups with the high exposure group having a higher abnormal result.
Exposure to high A(8) of vibration exposure was associated with a higher prevalence of all three component of HAVS. There is a need for better control of vibration exposure in Malaysia.
上肢血管、神经和肌肉骨骼系统的疾病，即手-臂振动综合征（HAVS），与上肢长期暴露于手-臂振动有关。目前，热带环境中 HAVS 的证据有限。
确定马来西亚吉兰丹州轮胎店工人中 HAVS 的患病率和严重程度。
对吉兰丹州两个地区的 200 名轮胎店工人进行了横断面研究。第一部分数据在现场使用问卷收集，并测量手-臂振动。第二部分包括一系列手部临床检查。工人根据其 8 小时时间加权平均暴露量 [A（8）] 分为高（≥5 m/s）和低/中度（<5 m/s）暴露组。然后比较两组之间的差异。
血管、神经和肌肉骨骼症状的患病率分别为 12.5%（95%CI 10.16-14.84）、37.0%（95%CI 30.31-43.69）和 44.5%（95%CI 37.61-51.38）。按其暴露状况划分时，血管、神经和肌肉骨骼三个方面的 HAVS 患病率差异均有统计学意义（22.68%比 2.91%、62.89%比 12.62%和 50.52%比 38.83%）。两组之间所有临床检查结果也存在显著差异，高暴露组的异常结果更高。
高 A（8）的振动暴露与 HAVS 的所有三个组成部分的患病率升高有关。马来西亚有必要更好地控制振动暴露。
