Annals of Occupational and Environmental Medicine

Original Article

Association between Work Departments and Carotid Intima-media Thickness in a Metal Manufacturing Plant: Sook Jung Choi, Sei Kyun Noh, Dong Hoon Shin, In Sung Chung, Hyun Sook Bae, Mi Young Lee; Korean Journal of Occupational and Environmental Medicine 2010;22(4):345-355. Published online December 31, 2010; DOI: https://doi.org/10.35371/kjoem.2010.22.4.345

OBJECTIVE: To evaluate the relationship of work departments, carotid IMT, and plaque formation as predictors of cardiovascular disease in white-collar and blue-collar workers.
METHOD
A total of 201 workers from a metal agricultural equipment manufacturing plant near Daegu were administered questionnaires to obtain information on their general characteristics, their work-related factors. In addition, the workers were given a clinical examination, which included a carotid artery ultrasonography. In total, 193 (96.0%) of questionnaires were completed and analyzed for this study. Multiple regression analysis and multiple logistic regression analysis were performed on the data for analysis.
RESULT
Blue-collar workers had thicker carotid artery IMT when compared to white-collar workers. After adjustment, the carotid IMT was affected by age, working department, hypertension, and diabetes; plaque formation was affected by age, hypertension, total cholesterol, and excessive drinking.
CONCLUSION
This study suggests that carotid IMT is associated with working department. Therefore, we need to examine the effect that occupational health services has on cardiovascular disease, focusing on the characteristics of each department.

Citations

Citations to this article as recorded by

Cardiovascular Disease According to Job Type and Life Style
Wan-Young Yoon
Journal of Digital Convergence.2016; 14(2): 501. CrossRef

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Original Article

Carpal Tunnel Configuration Measured by Ultrasonography as a Risk Factor of Carpal Tunnel Syndrome in Motor Part Manufacturing Workers: Duck Soo Kim, Hae Kwan Cheong, Hyun Sul Lim, Yong Wook Kwon, Jong Min Lee, Dae Hyun Cho, Dae Seob Choi; Korean Journal of Occupational and Environmental Medicine 2002;14(3):213-226. Published online September 30, 2002; DOI: https://doi.org/10.35371/kjoem.2002.14.3.213

Abstract PDF

OBJECTIVES
This study was conducted to evaluate individual susceptibility to carpal tunnel syndrome (CTS) by ultrasonographic measurement of the carpal tunnel configuration in workers doing repetitive work.
METHODS
The study subjects consisted of 24 male and 11 female workers in a soundproof material manufacturing company in Gyeongju. We conducted a self-reported questionnaire survey, a physical examination and an electrodiagnostic study (EDS) in April 2000. After the examination, jobs were rearranged for workers with CTS. A follow up physical examination, EDS, and measurement of the carpal tunnel by ultrasonography was done six months later.
RESULTS
Of those studied, prevalence of CTS was 63.6/100 persons among women and 29.2/100 persons among men. Mean depth and width of wrist was shorter in those with CTS compareal to the controls (p<0.05). The risk of CTS was higher in workers whose carpal tunnel ratio (displacement/width) was 0.17 or higher (OR 7.13, 95 % confidence interval 1.18-43.1), and in workers whose carpal tunnel area was less than 300 mm2 (OR 8.00, 95 % confidence interval 1.18-68.5). Carpal tunnel depth and depth/width ratio had a positive correlation with motor latency of the median nerve and median-ulnar sensory latency difference (p<0.05), whereas the carpal tunnel width, displacement/depth ratio, and area (width X displacement) had a negative correlation with median nerve latencies after adjusting for gender. Workers who showed an improvement in the clinical stage of CTS after job rearrangement had a significantly lower carpal tunnel displacement/width ratio and displacement/depth ratio. They also had smaller upper carpal tunnel area ( width X displacement) and larger upper carpal tunnel area [(depth-displacement) X width] than the controls (p< 0.05 ).
CONCLUSIONS
Ultrasonographic measurement of the carpal tunnel is a good predictor of susceptibility and prognosis of CTS in workers doing repetivive work.

Citations

Citations to this article as recorded by

The Health Effect of Hand Arm Transmitted Vibration
Jung-Wan Koo
Journal of the Ergonomics Society of Korea.2013; 32(4): 303. CrossRef
Changes in the Thickness of Median Nerves Due to Excessive Use of Smartphones
Yeon-Seop Lee, Hoe-Song Yang, Chan-Joo Jeong, Young-Dae Yoo, Gwang-Yun Jeong, Jin-Seon Moon, Min-Kung Kang, Seong-Woo Hong
Journal of Physical Therapy Science.2012; 24(12): 1259. CrossRef

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